Allied Radio Catalog 1943.pdf

TWO FAMOUS LINES RCA and Raytheon tube. arC' unh-n'llallr

~7~a~ ~~~~U~rn::~i,:!it~:~;: ~h~~~n~ u:rocomtnactioD. Here lit a comple.e lil'lt.ina: of dependable radio I"eC"rivillg tubc-ll for eveTY pur-

~'l~:~~~ %rrl~~~:;eal:;=ill.~,~~ ~~ Q\'aUabidD RCA type om)' . Priority requirffl.

Tube RCA I Roy. NET Type I~C.at. NO. EACH

OOA 6-000 .... 51.35 01A

' ~002 '-001 .50

OA4G '-002 1.12 -oZ4 6-001 '-001 .91 OZ4G 6-00' '-004 .91

l lA3 6-. : 005

.73 lA4,. 6-005 .91 lA4T ,:00; ,-- .91 lA5GT/ G '-001 .62 lA6 6-009 '~09 .73 lA7G 6- 010 '-1110 .91 ------lA7GT 6-011 '-011 .73 1114,. 6- 01.2 .73 lB7G , : cii. .73 187GT , : ciis ..... .73 lC5G 6-016 .91 lC5GT/ Q 6-017 . : cii7 .73 lC6 6 -01' '-018 .73 lC7G 6- 019 '-01' .73 ---lD5G,. 6 - 020 ,-ori .73 lD5GT 6-0.21 . 73 lD7G 6-022 '-022 .91 lD8GT 6-0.21

, : 02. 1.12

lE4G ' : 025

.73 lE5G,. ' - 025 • 91 lE7G 6- 026 '-026 1.35 lF4 '-027 '-077 . 73 lF5G '-021 ' -02' .73

lF6 "T-029 ' - 029 _91 lF7G 6-010 '-010 .91 lG4GT/ G 6 -012 ' - 032 .73 lQ5G 6-011 '-031 .73 lG6GT/ G '-OlS ' _Ols .91 lH4G 6-03' '-036 .56 lH5G

l-Ola '-037 .73

lH5GT / G I '-011 .62 lH6G 6- 019 '-019 .73

lJ5G G:OiO~ 1.12 lJ6G '-0'1 '-041 .73

rL4 ,~, . 91 lLA4 6-0'2 '-002 1.35 lLA6 '-041 '-041 1.35 lLB4 '_0" '-044 1.35

rLC6 '~2' . : 045

1.35 lLH4 6-045 1.35 lLN5 '-046 '-046 1.35 lN5GT / G '-048 '-0411 .73 lN6G '-049 '-049 • 73

l,.SGT "T-OSO ' - 050 _91 lQ5Q ' -051 _91 lQ5GT 6-052 .91 lQ5GT/ C ' -OS2 .91

rws i : osi ' -051 .91 lS4 6-05' '-054 .91 lS5 6-055 ,-oss .91 lT4 6-0~6 '-056 .91 lT5GT 6-057 '-057 .91 lV 6-0SS '-OSS .56 2A3 "T-OS9 '...059 """1.i2 2A4G '-060 ' -060 1.65 2A5 6-061 '-061 .56 :lA6 6-06.2 '-062 . 56 2A7 6-061 '-061 . 62 287 '-CIU '...0" .73 2E5 , :iii '-065 . 73 2V3G ..... 165 2X2 /879 6-110 ..... 1.35

13A4 ,~ ... . . .91 3A5 6_7 • .:ou 1.65 3A8GT 6-068 1.35

l 3Q4 '-069 ..... .91

Tube RCA Type Cat. No.

3Q5GT 6-070 3Q5GT/ G

, ~07i l 354 · ST4 6-071 5U4G 6-074 5V4G 6-015

· SW4 6-076 5W4GT 6-0n 5X4G 6-0n 5Y3G 6-079 5Y3GT/ C 6-laD 5Y4G 6-080 5Z3 6-011

· SZ4 '~'2 6A3 6-011 6A4/ LA '-014 6A6 6-086 6A7 6-017 6A75 - '-iiiI

" GAS 6-089 6A8G ' -090 6A8GT ' . 091 6AB56NS 6-092

· 6A87 / 1853 6-091

6AC5G 6AC5GT / C ' : 095 ---

' 6AC7 1 1852 6-096

6AD6C '-097 6AD7G 6 · 098 6AE5GT/ G

'-ioi 6AE6C 6AE7GT '-102 6AF5G

6-10' 6AF6G ~6AG5 6-101 't:6AG7 '-105

:~~ G -lD7 6B5 6-108 ,6B6G 6-109 6B7 '-UO 6B75 6 -111

· 688 '-U.2 688G 6-Ul

l 6C4 '-106 °6C5 6-114 6C5G 6-115 6C5GT 6-U6 6CG '-ii1 6C7 ' -111 6C8G ' -119 6D6 6-1.20 6D7 6-1.21 6D8G 6-122 6E5 ' -1.21 6E6 6-1.24

"'SF5 6-l.26 6F5G ' -127

. 6F5GT 6 -1.21 ' 6F6 ' -l29 6F6G '-110 6F7 '-111 6F8G 6 -112 6G5 / 6U5 6 -191 6G6G 6-111 6H4GT

, : i35 · 6H6 6H6GT / G 6-U7

'6J5 6 -111 6J5G 6 -11'

Ray. NET Cat. No. EACH

'~070 SO.91

.91 ' - 071 .91

'-07' 1.12

.56 '-075 .91 .... .62 ..... .50 '-07' -:G2 '-071 .38 '-180 .38 '-080 .41 '-011 .62

' : 083 .73

1.12 ,-ou .91 '-086 .91 '-017 .56 ---1:35

.73 '_090 .56 '-091 .56 '-092 .91

1.12 . :0; • .73 ' -095 .62 ------

1.35 ' : 097 .91 '-098 .91 ' -100 .73 '-101 .73 '-102 .73 '-101 .73

.91 .. 1.35

1.35 '-106 4.00

--.:m- 1.12 ' -108 1.12 '-109 .62 ' -UO .73

'-i.i.2 1.35 1.12

'-111 .73 .. . .. 1.12 . ... .62

..... .56 .56

' -U7 _5 6 .. . .. 1 _35

_91 ,-m .56 1.35

' :i.22 .91 ' -1.21 .62 .. .. 1.12

.. . .. .62

'-127 -:G2 ' -1.21 .56

o-iio .62 .50

' -111 .91 '-112 .73 '-191 . 73 '-111 .73 'om 1.12 .. ... .62 ..... .62 ..... .50 . .... .56

SIX MONTH GUARANTEE RCA and R:aythPOTt tu~ art' llUaranteed <mainst C!'lectnral or m«ha niral drfKtIt for ~:c month", \Ve ~111 repla« a n), tube that does not give cotlident ~rforman«. (Thh~ d~ DOt

:''ifiI~~in~~i:~:U~~ ~~~~~JII:'!~~~l~ pfI!'\'ailing conl1lt r:nll. \,'t., t tube-8 oz. ; J tubes- ! lb. ; 6 tub(-..-l lb .. to oz.

Tube RCA Ray. NET Typo Cat. No. Cat. No • EACH

6J5GT 6-140 '~i'o

SO.50 6J5GT/ G

' ~i'i .50

-6J7 ' : i'2

.73 6J7G 6-142 .62 6J7GT 6-141 ' -141 .62 6J8G 6-1" '-1" .91 6K5G '-145 ' -145 .62

------6K6G 6-146 .... .62 6K6GT 6-147

' :i'i .56

6K6GT/ G , :i,i .56 °6K7 .62 6K7G '-14' '~i" .62 6K7GT ' -150 '-150 .56

"6K8 '-151 .73 6K8G 6-152 . : iS2 .73 6K8GT 6-153 '-151 .73 6L5G 6-15' '-15' .62 ---

"'6L6 6-155 1.12 6L6G 6-156 . : iS6 1.12

' 6L7 6-157 .91 6L7G 6-1SS , :i58 .91 61015 6-092 '-492 .91 6N6G 6 -160 ' -160 1 .35

"'SN7 6-161 .91 6N7GT / G 6-162 , : i'2 .91 6P5G 6-161 ' -161 .47

6P5GT / C 6-1" '-1" .44 6P7G 6-165 '-165 1.35

' 6Q7 6-166 _73 6Q7G 6-167 , :i6i .50 6Q7GT 6-16' '-16' .50

OGR7 6-169 .91 6R7G 6-170 ,:iio .62 6R7GT ' -In '-In .50

' 657 6-112 .91 6S7G 6-171 ,:iii .91

"'&SA7 6-11' .. . .. .56 ------6-175 65A7GT .62

65A7GT/ G , : i75 .62 "65C7 , : i7' .73 .... . 65C7GT ' -177 .73 65D7GT ' :in .73

· SSFS ,:ii8 .56 65F5GT 6-179 ' :ii' .56

· 65F7 6-110 ..... .73 "'6SG7 ' -111 ..... .73 ' 65J7 6-112 ... .. .62 65J7GT 6-111 '-111 .62

1-"65K7 6-18' .56 65K7GT '-115

. : iiS .62

65K7GT/ G ,:ili .62 65L7GT ..... .91 65N7GT 6-186 . .... . 73

' 6SQ7 6-117 ..... .56 65Q7GT 6-11&

' -iii .62

65Q7GT/ G 6 :18'

.62 · 65R7 ..... .62 6557 6-190 .. . .. .56 ------6T7G 6-192

':i~ .73

6T7CI'Q6G , : i9i

.73 6U5 / 6G5 '-191 .73 6U6GT

6: i ,s ' -194 .73

6U7G '-195 .56 · 6V6 6-196

, : i'8 1.12

6V6GT / G '-191 .62 6V7G &-199 '-19' .73 6W5G , :icii 4- .200 1.12 6W7G '-201 .91

"'6X5 '-202 . -204 .91

6X5GT/ G '-.20, . 56

~M~t.J Tube. %-MIDlatliff. t-Lokt.ai. G---Gla."I~ Oct.al. GT- Small Gla~ Octal . GT/r...........small Cia" Oct.al - Re-plaCft GT or G

2 FOR COMPLETE INDEX SEE PAGE 96

,RAYTHEON

TUBES Tube RCA Ray. I NET

-Sy.ype ~~';5°' C~~' . ~.O. ::::s 6Y6G 6-2OG <-2OG .91 6Y7G 6- 207 4-207 .91 6Z5 6-208 1.35 6Z7G 6-~ 1.12 6ZY5G 6-210 4-210 .73

f 7A4 6-211 4-211 .73 f 7A5 6-212 4-212 .73 17A6 6-213 4-213 .73 t 7A7 - ,-214 ~214 ~ f 7A8 6-215 4-215 .73 f 7B4 6-216 4-216 .73 f 7B5 6-217 4-217 .73 17 B6 6-218 4-218 .73 f7B7 6-219 4-219 .73 f 7B8 6-220 4- 220 .73 t 7C5 6-m 4-m .73 f7C6 6-222 4-222 .73 t 7C7 6-223 4-223 .73 t 7E6--- - ' -224 ~224 ~ t 7E7 6-225 4-225 .91 t 7F7 6-226 4-226 .91

i7C7 .'1232 6-227 4-227 1.12 7H7 6-221 4-228 1.12 7 J7 6-229 4-229 1.12

t 7K7 4-390 1.12 pL7 4-230 1.12

t~~: , -iii trn 1:g t 7R7 4-233 1.12 t 7Y 4 , :ii4 4-234 .73 10 6-235 4-235 1.65 12A5 6-237 4-237 1.35 12A7 6-238 4-238 1.12 12A8GT 6-239 4-239 .Sl> 12AH7GT 6-395 .91 12B8GT 6-240 ,:i,o .91

°12C8 6-241 4'241 1.12 12F5GT 6-242 4-242 .56

·g~;GT t~:I ,:i.. :~~ 12J7GT 6-245 4-245 .62 12K 7GT 6-246 4-246 .56

°12K8 6-247 .91 12K8GT ' :i'i. 73 12Q7GT 6:i,; 4-249 .50

°125A 7 6-250 .56 12SA7GT 'G 6-251 4- 251 .73 0125C-7-- . -252-~ °125F5 6-iS3 4-253 .62 125F5GT 6-254 4-254 .62

· 125F7 6-255 .73 125H7 6-248 .62

· 125J7 6-257 .62 125J7GT 6-258 4- 258 .62

· 125K7 6-259 .56 12SK7GT / G 6-260 '~260 .62 ~T~;-~liniatur~~Lo\.La1 .

TUBE DATA BOOKS RCA Manual RC-l'. Contain ... t __ -..::hllic:al.huaon n!(~h'i lla: I U •• r,. , diagra In>'.1 hf~ry • ... 'IC. 155 p<\ltI"S. FRE E _Uh ord e r for 2Stubes.

37-575. N'[~: ..... 25c 37- 059 , Charade,l.tlcs Chart . FREE with order.

37-590. Radioiron Desi , nen Handbook . l.;lIt·~ ('thUun. Edhrd by 17. l#ana' funl Smhh. I1nl • ..-1 -\u.clralian "Rgin" ... '1'". Noll.-d fur it .. "im"Tlcily all.t '-"IIIIJletrn'.,.>4.

;':~t~~~:,1 ~/z Tt.:... 98e 37 - 057. RCA Prlc.eC.rd •. FREE \\iLb RCA lUlx: order.

~:rt~:.~· 2~C:RfEumwt:~

Tube

12~l~"cT 125N7GT

° 125Q7 12SQ7CT/ C

*125R7 12Z3 14A7 1237

f 14H7 15 19

20 22 24A

°25A6 25A6G , 25A6GT / G 25A7GT / G 25AC5G

NET Cat. No. Cat. No. EACH - c:B5 --- $0.91

6-261 .73

t~~ .:263 ::~ tru ' :265 :~: 6-266 4-266 1.12

,:26i ::~~ U~ 6 -270 4-270 .73

6-271 4-= I 1.65

'-m 6-214 6-275 6-276 6-278

4-272 1.35 4-273 .50 4-274 1.12 4-275 .62 4-276 .62 4-278 .91 4-279 .91

UI~lUI(u~ Tub. RCA Ray.

~4~9..-'-TLl"P,,-._- Ca6t:3';? Ca4~3';?

50 6-324 4-324

~gf:gT ' :326 ::~~ 50Y6GT I C 6-327 4-327 52 --- --.:m-53 6-330 4-33<1 55 6-331 4- 331 56 6-332 4-332 57 6-333 4-333 58 6-334 4-334 59 6-335 4-335

~g~:g~ ':337 ::m 71A 6-338 4-338

NET EACH

$0.73 1 .35 1 .12

.62

.62 1 .65

.91

.62

.44

.50

.50

.91 1.35 1.12

.50 75 - -- 6-339 4-339 .47 76 6-340 4-340 .50 77 6-341 4-341 .50

- 2- 5-A-C- 5- G- :r 6-280 4-280 .91 78 6-342 4-342 .50

o~!~!~ tffi till U~:~ U~ UH Ji 25L6GT/ G tm ,:ii7 ::~ 82 6-346 4-346 .73

~5Y5 6-289 4-289 ~3l! :~V t~ trJ d~ o~~~: t~~ 4-290 :;~ 84/6Z4 ~ 4-349 .62 25Z6GT / G 6-293 , :2;3 .56 85 6-350 4-350 .50

~; tg; tg; :;~ ~:9 6-351 :em 1::~

30 6-296 4-296 56 X99 4-353 1.65

iiL7GT ::m i:~; Ai 'H'~T~jl~~T ~:~ i:~i t:i! 33 6-300 4-300 .73 117P7GT 6-358 1.35

___ ___ ___ Un6GT IG 6-359 4-359 .91

34 6-301 4-301 .73 182B /4828 --- 4- 362 1.12 35/ ,51 6-302 4-302 .56 183/483 ;;:3,0 1 .12

f 35A5 6-303 4-303 .73 485 6-361 1.12 35L6GT/ G 6-304 4-304 .56 874 6-117 1.50

t 35Z3 6-305 4-305 .73 879 , 2X2 6~0 1.35 35Z4GT 6-3OG 4-3OG .44 884 6-113 2.00 35Z5GT/ G 6-307 4-307 .47 885 6-114 2.00

~:Z6G ' :309 ::~g; :~: t~~~2 /7C7 ;;:m ~ U~ 37 6-310 4-310 .47 *1852 6-096 1,35

~:I44 tlli tlli :~~ 0~~~3 tm , ::i70 1:~f -- --- XXL 6-371 4-371 .91

:~ t:: tm ::~ REGULATORS AND RECTIFIERS-43 6-316 4-316 .62 ""75-30 '-6-:534 - --1.25 45 6-317 4-317 .44 VR90-30 '-535 1.35

t 45Z3 6-311 .62 VR105-30 ' :536 1.35

::Z5GT till . ::i2O ::~ ~:150-30 6-537 . :525 ~::~ 47 6-321 4-321 .62 BH 4-526 2,94 48 6-322 1.65 " BR 4-527 1.59

G-Gla~ :--Oc"c"laI","","--,-",Gc:T_-c:Su=,a1:::Ic:G"',,,,:;: ... = Oct= a1,,,"_ ,,,G:.:T,,,I,,,G-,:-,S,,,"w:::a","",G:::·'",_=Oct::,::a1=:;,-::R""",p::::'a",c""=G:.T,,,o:::,..:G:.· .:.T:.",.::"" CHART SHOWING INTERCHANGEABLE TUBE TYPES

ordd' for 10 RCA Lu~. • Chanee of tIOCket Dt.'tt88ary. t aOltl:-bt.U~ .weld required .

ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL. 3

PHANOTRONS Ga8CeOulMll!ICharge-n!Ctifier tu~. U:!tCd in 3.uto-

~I~f~ ~a~~(-f;cfr!lat:2~ ~~~~rC~fs~~~~

G-E I Stock I Ava , I P •• 1l I NET ~~~ A",p" ~

:g:t~ I ~:gg~ .J5:J lAg . S~~:88 THYRATRONS

Grid -cont rolled ga"("ous-dl"chargc-rC'Ctif irr tubeot. ThYratron motor control I" the neWl'"t

:~ver :ntl~~~ f~b~C ~o~~~(";:~~I.;;:er~: AC linc:i. Popular type. are listed i:x:low.

~Stoolc 1 AVII . ' Peak NET Type No. AmPl . Amp. . EACH

~1-0i2---0:75 -o~ $2.58 2050 1 7-001 0 . 1 0.500 3.0 FG.9i 7-oU 0 . 5 2.0 15.5 Fe-17 7-005 0 . 5 2.0 9.50

:~8:J~A ~:g:; ~ : ~ :~ : g 1 ~:og 1G-57 7-008 2.5 15 .0 15°10 I:G-Q.'i 7 -0n 2.5 15 .0 19. ~ FG-I05 7-010 6.4 010.0 3~.

:;g:W ~:m , .u 1~ : g ~2: CL-4J.1 7-011 12.5 100.0 92.

PLIOTRONS

POOL-CATHODE IGNITRONS IUan pcak-curn'ut type for wclding control.

~~ I ~5~:t~ I A~~~· I S~'l~~~8 ~U::~ ~:~~; U~:g ~!8:88

PHOTOTUBES Ui:ht scru.ith.-e cell. for P. E. cflutpmc.nt.

C-[ I Stock Anode r NET T),pe No . ' Kind Volts EACH

.' J Tz 7 -0 2 0 vac;;;;;;; llili"""" F,2. 6~ rJ:2lol ~:g~~1 8:: ~ ~:~ GL--oW1 1 7~0231 Vacuum 200 7.5 GL-9ZJ 7-02" Ga!f 90 2.8 GL-929 7-025 Vacuum 250 3. 8 GJ ..... 9JO 7~026 Gil.JI 90 2.

804 808 ••• '25 '2' 827R

'2' 'JOB '32 '.U ••• •• 2 85U

POWER AND SPECIAL PURPOSE TUBES

Stocle Tub. Cath . NET No. Typ. Volu EACH

7~OSO Pt-ntode 7 . 5 7~051 Triode 7 . 5 7~OS2 Rectifier 2 . 5 7~OSl H.F. Amp. 6 . 3 7~OU Triode 7 . 5 7~OSS Seam 7 . 5 7~OS6 B~am 10 .0 7~0S7 Triod~ 10. 0 7~OS8 P.P. Beam 6 . 3 7~O S 9 Prntode 2 .0 1-060 Triode 7 .5 1-061 Triode 7 . 5 7-052 Telrodc 10 . U

SI~:~§ 1.0

f~:gl 135.0 17.5 10.S! 17.0 ~:25 3.25

37.50

fSJ ~:g~ J=~ IY:Y 16.40 '.687, 7-065 Phototube ~7.:9508

7-056 Rrctifier . ·i :.r · Hi tg:: ¥rl!~~er ~ J 1 j: 88 901 ~:~: It~lt~eRay ~J 8 902 7-071 Cath. kay 6 . 3 ~.gQ ::: ~:g~f ~h~~~t~i! . ? : ~ .. ::95 ;:~ ~:g~; ~:::~:~~I: :::: : :: ~g 920 7-076 Phototube .... 5.25 921 7-077 Phototube ...... 2.00

922" 7-078 Phototube ~ 2.88 924 7-075 Phototubf!- . . ... . . 2. 925 7-080 Phototube .. .... . 1.0 926 7-011 Phototube . ... . .. .01 927 7~082 Phototube ....... .7 928 7-081 Phototube ....... 2.1 9JI 7-0 U I:'hototube 12. ;~~ ~ :::: ~rii!Ja:r .. f r . ~ . 956 7-037 Pentodr 6 . J 5·

;U ~:g:~ J~:=: : : ~~ ~: 959 7·090 PeDtode J . 25 5: -rJ2 ~:~~ ¥ri~:' "7 .s· 2:~g :~ ~:g:: ~~!;d~mp. ~J a· ~8 iffi ~:gi; ~~~Fal~d ti ~ :§§ )621 7_098 ~ntode 6.J 2:50 162 2 7-099 Beam 6.3 ~. 75 162-1 7-100 S('am 2 5 5§ 1625 7~101 B~am 12 : 6 :5 1626 7~102 Triode 12.6 2.5 1627 7-101 Triode 5 .0 13.5

~ 7-10' ~--;7.6~8~ 1631 7~10S Beam 12.6 2. 1632 7-106 Ik-am 12 . 6 2. I63J 7-107 T~·. Triode 25 . 0 1.5 16.14 7-108 Tw. Triode 12.6 2.S!: = ~:~~: ~~:cc I~:~ 1 ~:51 lOOt 7~111 Btoam 5.0 27.5

=~ J:~n t~:I~ 19:9 1 ~:8 9001 7-lU I.lrntode 6.J 2.5

~j t t~U J~~~ ~:1 ~:gg

Prlorltle •• G-E Electronic tutx-s • are available onJy on orden .... ;th I. I. priority ratins:: requir'fti at the ~ time Your order is n:a:jYed by us. 37· 1 56. G-EdftUl3r No. 6921. '·Tr.lJUllmittim: Tubes." FREE.

TRANSMlnlNG TUBES G-E Stock Tube Typ. No. T~"

'2"fiJA 7-120 Triode 211 7-121 Triode 242C 7-122 Triode 276A 7 -121 Triode 800 7 -In Triode 801 7-125 Triode 802 7-126 Pentode 80J 7-127 PC'ntooe 80S 7- 128 Triode 806 7- 129 Triode 807 7-110 THrode 809 7-111 Triode 810 7-112 Triode 811 7-111 Triode 812 7-lU Triode 81J 7-115 Trt.rod~ 81-1 7-116 Tetrode 815 7-117 Triode 829 7-11S Obi. Tetrode 83JA 7-119 Triode 8.14 7-UO Triode 135 7-Ul Triode 136 7-U2 ninde 837 7-lU 1'C'ntodr 838 7-U4 Triode 84.~ 7 -US Triode 8-45 7-US Triode 860 7-U1 Trttode 865 7-US Tetrode 866:\.-

866 7-U9 Rrctltier 812 7-lS0 Rrctifirr 812A 7 -151 R«'tifier 161J 7-152 Prntodc 1614 7-151 Trtrode 16)6 7 -1 54 Uiode 1619 7-155 Tll'1mde 1623 7-156 TriOlle 1628 7-157 Triode

RESISTOR TYPE

M~. . NET Diu. EACH

""fjj(j"W S 1 :2 .88 IOOW. 12. .oow. 12. 0

'rJ~: 1~:8g 20 w. 3.45

I}~ ~: : 28:~8 .bM~: H:88

30 w . 3.50 .low. 1.50

uoW. 1 .S§ 55 W. .5 55 w . .5

)00 W. 22 . 0 65W. 17.58 25 w . 4.5 -lOW. 19.5

JTJ ~~: ~~:g8 .00 w. l~j8

;M~~·: lUg IS\\" . 12.6§

. ~~: l~:g .5 w. 12.7

BALLASTS ~E-Sto--; k ~Ma.-. --N- [ -T-

Typ. No . Volt.. Amp&. EACH

F"iWO ~ --8-o.m- S}'.058 S·25 7-021 16 1 . 16

8-46 7-010 18 J . 25 4:0 8-47 7-029 18 2 . J5 78 gj ~::n I~~ L~~ 2~:gO

VACUUM SWITCHES

~C-[ 15 '00'-1 I-I NET Type ~ ~~m-.!..:~~_ ~ 7-016 SPOT to S7.25

FA·15 7~o17 SPOT 8 6.25

COLD-CATHODE GLOW TUBES

G_E I 5'0.0. I M.. . I MUl NET Typ. No _ DC V. Ma. EACH ~ 7_0" .7:,- - 30 $1:-25-

105-30 7-oU to.lIi J O 1 .25 150-30 7-01S 1150 Jo 1 .25

"KNIGHT" BALLAST .RESISTORS JFD ADJUSTABLE BALLAST KIT

No . ---S:-800

9-801 9.80 2 9-803 9-80" 9-805 9-806 9-807 9-808 9·809 9 .. 810 9·811 9 .. 812

NET EACH

39. LOTS OF 15 ASSORTED

' I:ACH

35.

Esact dupllC'3t~ . top-notch Quality halla ... t tubM for replacement in AC-OC ~t!loo \\'lU be

~Fo~~ ~t~::.('~~ :et~i:l'nr;.II: f~ ~~~~~i ~~a~:~~ri~·ti~T d~~~I~ecr!~:~:e ~d~~ fective bal'a. .. t tube and n!pl.~ with COin'Sponding type Knight balla.,t. The ballast rem!ltor "ill prota't the tube!! Ia your radio ~ ~ainst prematu~ Lura-out l"nIultlng from

~~~T:~ ~~:U:!~C~~~r~li~~~:. v:.~t.: 1 tube--8 01.; additional tuba. 4 w. each.

-;;Jr 9-':t°13 ~~;. 9_':.°26 :::; KJ6B 9-81" L49C 9-827 K74R K-I2B 9-815 L49CJ 9-828 K74C K-I2C 9-816 L49D 9-829 K80R K-I20 9-81 7 M49B 9-830 K87B L-I2B 9-818 K55B 9-831 K92B L42C 9-819 K55C 9-832 1~70 M42B 9-820 K55CP 9-833 1~77 KZ-I9B 9-821 L55B 9-83" 105.-\ K-I9B 9-822 L55C 9-835 I65R-I KZ49C 9-823 U5S1 •• 838 200R K49C 9-82" U5S2 .-837 250 R 1:490 9-825 M55B 9 .. 838 J20R4

Handy kit of adju!!table !\C-OC ballastl'l dCl'li e ned to ~place more thaD 2700 different tYJM"'1I of balJa.."'t

~.E::- ::::d'" :Dt~:' ~~~.~~~n~dtr':I~: A';~~I~~ 8O-pagc Belt and Ballast Book ghim: fehlace--

9~t7.~B'.ill~ntlc.:~~a~t.2 I,fET .. . . S3.23 REPLACEMENT TUBES FOR ABOVE

Rel'laeem~t tubes for aoove Idt . "'t.. 8 oz. each. 9-885. Ball •• , A ... ........... } NET 65 ::::;: :~::~ l!:::::: ::::::: : EACH c

RAYTHEON HEARING-AID TUBES Mi niatUr1" ttl~, .,.. hls::h by . 55~ din.. Fil. \·oltag(". 1.25 at .OJ3 amh". t M.tal Sh.1I Ba .. , 5 pron.,- lo1ot s !\mptumol 8OI' l.:e t bt-Iow. -Standard Octa l. Remo"aWe Base. Leach from co~'dope may be wired lnto circuit.

4 USE OUR 2 % TRANSPORTATION ALLOWANCE ON CASH ORDERS

@Y ALLlEO'S !ltock~ 01 power . lu"'- nre m.t.intalnetl In con· (ormaa ... • with WPB r..-"ulu· tionl'l. PI •••••• tend highest prlorlt,. with ordu.

RECTIFIERS

~~:. I S~c:.k I ~~:: : 1:~~.1 NET ~ 6.80o l ~lercur)"-SOOO ' S 1.00

~~~~866A I:::g~ ~.~=:: J~ 2~:~g ~~C :::g:I~~::: 1 ~ iy:~g S69A 6-805 :"f~ 2OOl)l l 125. 00 872 IS-807 \ h."I'CtU')' 75(1) 9.00 872A 16-808 \{("TCllry 10000 1 11.00 878 6 - 809 Y.lClIum 2(.1UOO 11.00

~~:6879 1:::~~ ;~;~~~~:~ t:; 1616 6-812 jVllcuum 5500 5.75

GAS TRIODES.TETRO DES

CATHODE

HYTRON POWER TUBES TypE HY-loZ . Jli"h~mdmcy ~.,...IJik." tri.)llt, wi(11 low-IOlJ" la .... a

!;;~!:~~O:\I,.j~:~~ t~!~t\_!.(}()fJjj ~~~~~)II~m~II~. '::r tl::'U';!jJY. Modulator. I'late, R50 Vohtt. Filament. 6.3 Voltl'l at 2.25 I\mll"'.

~1~~<'O~;-·N~~~·~~t.~:. 52.75 't;~: I S~O:.k 'tit.!~ N [T

H·-Cy;7_-;."'o=-I~ 4Ci\V:-~ HY.40Z 7-603 4O W. 3.75 HY-65 7-613 15 \V. 3.00 HY-69 7 - 607 40 W. 3.95 HY.l15 7 - 608 15 W. 3.95 HY.61 / a07 7-606 25 W . 3.50 HY.31Z 7-601 _10 W . 3.50 HY.61A 7 - 6 0 4 05 \\'. 4.75 HY-616 7 - 609 J.SW. 2.25 HY.1UB 7 - 61 5 2.0W. 2.25 955 7 - 616 Acom 3.00

CETRON PHOTOTUBES Th~ ltde-ntif}("8lJy m.pn~ ()ho-. IOtll~ a61'ure hit:.h ('Ilinency. thorough deprndabihty ami lonl:: lifC'. For u..e IQ phut()-4,!lectric t!qulpment where laboratory and IndulitnaJ np-

r~~~~~~~~ rW~e t:~t:!:;n~:~m; ~lpmc'hL Thdr utn-rue ..... .dtJvit)' permit .. lows gaol content. rl. .... ltint.: t 1\ Ili~lu.orlon.izat.ioQ fl!.int formure ... fTl!l.·1.h. ~ Opl!f'auon. 0.· a!l allel'"nalCII f ... r hanl-to-obtain pholnlltl-. Sec listiogbe1ow forfe(J ui':ah:tllIYIJOI.

Stock Mfr'.. Equl'tl' .

8-:-~~O - C:~~; ~ ~~~nd $ }~~ 8 - 201 CE·1-D 918 G as 3 . 70 8 . 202 CE-11-V 917 V3(.'UUQI 5.75 8.203 CE-21 920 Ga" 5.75 8-20" CE-22 924 Gas 2.50 8-205 CE·23 92J Gas 2.50 8-206 CE·25 927 Ga" 3.50 11-208 CE-29 929 Vacuum 3.00 8-.209 C E·31 -V 919 Vacuum 5.75

POWER TUBES

;;:. St,::.k :;:~:: ~~~~ ~ 203A 6-832 Triude WOW. $10.00 211 6-833 Triude .00\ ... ·. 10.00 800 6-83" Triode l 5\'1. 10.00 801A6-835 T riode lO W . 3.15 802 6-836 P"'ntode 13\\'. 3.50 803 6-837 Pentode IlSW. 28.50 80~ 6-838 ~ntodc: .sUW. 15.00 805 6-839 Triode 12.'iW. 13.50 80& 6-8 .. 0 Triode 225\'1. 22.00 801 6-8 .. 1 lIo'alO lOW. 3.50 ~ 6-8"2~~~

809 6-8"3 Triode 3nW. 2.50 810 6-8 .... Triode 1.IiOW. 13.50 811 6-8"5 Triode SSW. 3.50 812 6-8"6 Triode 55W. 3.50 813 6-8"7 Beam toOW. 22.00 81. 6-8"8 Bt.-am 65 W. :17.50 8115 6-8"9 PPBcam 25W. 4.50 826 6~850 Triode ()(I W. 19.00

:~~" :::;! :::: ~ I:::~ 8zg 6-853 PI'» 8 ('01111 40W. 19.50 SlOe 6 - 854 Triode bOW. 10.00 832 6~855 PI' lkam 15W. 17.00 S33A 6-856 Triude 450W. 85.00 83~ 6-857 Triude .'iUW. 12. 50 831 6-858 Pentode 12W. 2 . 80 838 6-859 Triode 100W. 11.00 841 6-907 Triode 12W. 3 . 25 8~2 6-860 Triode 12\\'. 3 . 25 8U 6-861 Triode 15W. 2.90

8i5" 6-863 T iiOde IOfl\\~ 10.00 8~9 6-864 Triode 4(IOW , 120.00 850 6-865 Tetrode lunw. 37.50 852 6 - 908 Triode 100\"'·. 16.40 860 6 - 866 Tetrodc 100\\0". 32.50

::: :::~~ ~~~~::fe ' ·iow. ~:~~ 1&08 6-868 Triode 20W. 4 .00 1&10 6 - 869 '·cntode 6W. 2 .00 1613 6 - 870 Pcntode lOW. 2 . 75

~:~: ~:-:;i :::: I~ !:~: 1623 6 - 873 Triocle 30W. 2.50 1624 6-874 Ream 25W. 3.50 1625 6 - 875 Beam JOW. 3.50 1626 6 - 9:1.0 Triode SW. 2.50 1&21 6-876 Triode ISO\\'. 13. 50 8000 6-878 Triode ISO\\'. 13. 50 8001 6-879 Ikam 75 W. 27 .50 8003 6-B80 Triode 100 W. 12.00 8005 6_BBI Triorie 85 W . 7.00

SPECIAL AMPLIFIER TUBES Reduced hum. mlCTOphoDict: and PM". ·F"or continuity of ..ervice. tFor aircraft u~.

1fi6IS-:-9-30 I'Te"~le I"·" "I $1.50 1602 6-931 TnOoIl.· ....... 2.75 1603 6-932 1 ..... ntode ..... . 4 .75 1fi09 6-933 I~nt()lle .• .•.. 1.60 1 ~12 6-934 ..... Dtagrid ...... 3.25 1ri21 6 - 935 ·'-rnta-Ie .•..•.. 2.50 1ti22 6 - 936 -TetrOole .,. 2.75

RAYTHEON TUBES Laboratory dC!'iKned and coRMtructeo.J for u-.e in .pl~:iali%.ed electronic equipment. Com· .. menU ~uch a~ tilam~Ut. gnd". and 1,Iatra arC' 8t'lect<"'l'l 01 highl."Itt. quality material to hrovide trouble-free performance and 10Dg We.

~;~: I S~o:.· 1 l~=: 'ti1~!~ 1 NET

1iif:20A 5~ l-"entode Tuw~ R K-25 5-bOl t""ntodco lOW 3.95 Ak..3~ S·GOS Tv"n-TtlO(le lOW. 3.50 RK.39 5-'07 Bo."afU 25W.! 3.50 AK .~9 5-bll 1lkam 21 W. 1.25 RK.59 5-'11 T,,'iu-Tri,?<,e 15W. 4.50 AK.60 5-GU Y .\\ .Ro.-"C'tt fier ... .. . 2.75 AK·62 5-bl5 COl" T-loc.Je " ... 1 3.50 "K -66 , 5-U7 1~1II JaW. 3.50 AK·807 5-618 ~11l I2SW. 3.50 866- 11 ... 1f-,.,..uve

1'5&A. 5-51' KC'Cli ricr ' ... ' 1.50

For addltJonal lj"tJnp and io- @y formation on RCA transmitting an.1 puwer-tYl~ tube:t :uk for Po ..... er Tube Bulletio 37-054-

FRE[ on request.

PHOTOTUBES Type '~I~ :~; I ::::~ ~=uum 918 6.884 G;U\ 919 6-885 Vacuum 920 6-886 Gas 921 6-887 Gall 922 6 . 888 Vacuum 923 6-88 9 Ga:-. 92~ 6 - 890 Gall 925 6-891 Vacuum 926 6-892 Vacuum 927 6-893 Gas 928 6-894 Ga.e 929 6-895 Vacuum 930 6-896 Gas 931 6-897 Gas

U.. NET Sound i'"3.'7O ReidY 3.40 Sound 2.30 Relay 3.35 Sound 2.70 Sound 2.00 R ... lay 2.00 Sound 2.60 Relay 2.00 Relay 2.00 Color 3.00 Sound 3.70 Rclay 2.00 N.c.-lay 3.00 Sound 2.00 ReI.I)' 12.00

TELEVISION TUBES T ype Slock No, KI~ .",.=.'-"'N""E"T-

3AP~/90&-P~- G:ii9"8 ~ --:v- $ 18.25 5AP~/1806P~ 6~899 Kin~. .Y 27.50 68P~/1802P~ 6-900 Kine. .Y 27.50

7AP~ 6-901 Ki ne. 7· 36 .00 9AP~/180~P~ 6·902 Kine, 1)1' 62.50

12AP:~:03P~ ::;g: f~:: I: ~::~g 1898 6-905 !\otono • .Y 24.00 1899 6-906 MOdO. 5· 95.00

RCA GUIDE Contain!'! drcuilll ",;th iIIuflltauoru.. expl-..natiOnl'. and l)aI'U li"u. I.J.ctailed data on tunl~, neutralizing. etc. Complete t.cchnical dala au

~\·~5t;a:~m~t~T. ~~~: •• •..•••••.• •. 25, 37-061 . TUBl SOCKET BULLETIN . UIIl.t' I{CA sockct~ for RCA Po·w-er Tubt."1iI with 1Ipt.-ciai balIC or mounting. F RIEE on r equ .. t .

Mfr ' . I Stock ' PI.te CI... NET T,p. No. 01.. . Ser ... lc. ~ 7-900~-C-- i"2.25 TZ-20 7-901 20\\'. B-C 2.25 T-21 7 - 902 21 W . C 1.95 T-~O 7-903 40 \\' . a-c 3.50

~~5tO ~:;~; tg~': t'E ::~g 203A 7 - 908 100 W. U·C 10.00 203Z 7 - 909 65 W . H 8.00 805 7-910 125W, u-C 13.50 814 7·911 200 W. 80C 18.50

:!~SW ~:;~~ 2rci~' 1 ~ :I::~~ 16& Jr. 7 -915 Rt'("tifier 1..00

t-126 7 - 916 ' 12.'iW. C" :13.50 _200 7 _917 2uu\\, . C 21 . 50 O·203A 7-918 I.C'.iOW , R-C 14.50

EIMAC TUBES R":-il!'ti: C'~ki~~~ a~I~'\~h f:O~ue:l~ Mfr'. Type ~ 35TG 7ST 100TL 100TH 250TL 250TH KY 21

Stock No. PI.t. DI... NET

7. 7 00 1-=7~O"WF.F. =--1, 6.00 7 .. 701 70W. 6.75 7 - 702 75 \V 9.00 7-703 100 \\t 13.50 7 . 70" InO \~. 13.50 7.705 250 W. 2".50 7 . 706 250 W. 2".50 7·707 to::("\.·i ll! Rectifier · 10.00


NEON LAMPS-LINE CORDS-REGULATORS

• GENERAL ELECTRIC NEON GLOW LAMPS MALLORY BIAS CELLS

?udt~~~ri~nci~:r ;~i~i~mfi;l~~

~. T·2 TINY NEON LAMP

.. Fig. A. Onr of the sma1l~t ncon lamp~ madc;onlY l~·

~O~velt~V. tOe ~~~svv~t~ at .3 ma.. Rrquircs cu~nt Hmitln.-: resl~tance. .2 mcg. (or 105.125 V ... 5 mt'g. for 210-250V.Lnsresi~tor. Wt .. 30z. 52-370.

~5lTo~~lcl~: ..... ...... 8e 52-371.. Witla .2 meg. resistance. 1/25 watt. 52-372. With .5 meg. resi~tance. l / tOwatt. 10 for st.ll. EACH . ............ . .•.. 13c

~~1 ' a~:: ll!5~ r~:5~o~.NI~1. ~!!!iL Same as "2.373.10 F., ... 2S. E ... CH ..•.... 14. 52 . 403. BaYonet :!lOCket for 52-373. abcwe. ID For s.cc. EACH ............. ' ....... 6c

G·E RESISTORLESS TYPE A neOD type unit (or usc In voltace rcculaton. test instruments. noise tdlencerll. and for hleh frequency equipment. There is no fMistor in base of lamp. Can be matched to any t~t panel or instrument. Ideal panel indicator light. Has double contact bayonet base. \'\-'t. ... 0&.

~I T'·· I~I~I~ 52·112 ~ 0,.. 11 \ 52·113 G IO Clear Va 41C 52·8U GIO Clear 1 52·115 514 Clear 2 49c

VOLTAGE REGULATORS CLAROSTAT LINE VOLTAGE

REGULATOR

fmv~itt~~d,~~~tTN"r~: ;I~ "'ollage con~tant even with line "'ollage incr ... ;ue to 140 "·olt~. Plugs into wall outlet: ~t cord plug~ into rqulator. Shpg ...... t .• I lb.

No. Type WeUs

;:;~~ ~: ll,g i~ Igg 9-922 B. 100 to 150 9-923 C. 150 to 200 9-924 O. 200 to 250

~itly $~ }'g·H. . . ........ .. . ...... ... 5 9c ICA UNIVERSAL

RESISTOVOLT All automatic "'oltage rt'gulator. Maintain9 a constant pot ... ntial of 110 or 220 Volu. AC or DC. pre .. · ... ntina: tube

"'1PI'lI~1IiII111" ~~~~u~rf~~::~~i~~~1S';o~~ inlltall-;ust plUIl in bet'weeQ line cord and wall outlet. For Sl'U 01 from 5 to 9 tubes.

~~~;;~·Nli~EACH . .. .. ... . ... . . .. 81.

UBCd In lII.my "tandanl c.'harReN. Replace Recli.:.on bulbs of same rating. Shpg. ""t.. 2 Ib:l.

Stock No . G.E.TYPe Amp. . FIg. EACH '"'9-9"00 27f.i65 - ,- -,,- $2. 9 4 9-90 1. 195528 2 B 2.94

:::g~ ~~~:ll 5~ ~ ~:II a·ao:l 1890<. • 0 3'if 9 ... 04 189049 6 0 3. 8 .. 905 2171SJ 15 0 7.

Low wattacc. nron·filled lamps t.hat glow <it bright orange-red . Innumerable apPlications: as ~ilinal~ on lest equipment; IKnition or l'anc1·

~:r~~f~~ilii~~r.iixlbuho~~,,~iF~r8ios~ri5 ~~~; AC or DC. -AC only. Av. Shipping wt .• 4 oz.

EDISON TYPE BASE No. T,pe Flnl.h Watu EACH

52·aOO -GIO ~ ~ ~I~ 52·111 GIO C kar I 52·112 GIO CI"", I (210-2SOV.) 3 c 52-101 5U Clear 2 ~~~ 52-10.4 5 1. OranKe 2 S2-I05 5U R ed 2 49c 52-10' 514 CI .... J 54c

CANDELABRA BASE

52 '007 \ T' ~ I CIc .. \ '.~ 52-lOa -GIO Cleat VI 52-10' Gl0 Clear 1 I n~

41C

ARGON GLOW LAMPS 52·81.0. TyPe s·u. Edison ba~; d~ glil:!s: 2Yz walts . NET . .... .. .......... 45c

.;;!; ~t.!: JY ::tt.T N~: . ~~~~l.a.~r~ .. '4~id

~~~.~ hT~~~~~'cityn~~h~~ b~~ "i.2!~:Ir. pass conden:ler". IlIustratioQ :lhowl'J ~ingle bi~ c~1I in No. 9·955 holder Ibted bl!low. May also be U!led to furnil'h Initial bla!! for RF. IF. and AVe. Siu. l }iz. by '/II.. Provide a OO<UrTeDt potenlial of I or 11.4 volt ± 10%. May be U:lM in ~rie:l for hi&her VOlloli:CS. J oz.

:::~~: ~~O~~I~"t:pe. EA CH ...... 21 c

BIAS CELL HOLDERS

Stock N0' 1 Type ~I~ 9 · 955 GallA I cell 9c 9 - 956 GBIIB t cell l2c 9-957 GB12 2 cell. lSc 9-958 GBlJ J cells l8c 9-959 GB14 .. cella 24c

NEON LAMP SOCKETS e Candelabra. bayonet . ~ - and mlnlaturl!' base :

porcelain IIOCketM with . sere,," t ... rminahl. -~ll!'tal .h~1l over hard rubber.

Su)).P.ntl Sbpg. wl • 8 0% Clelt·plneI

Stook No. a.H Mount EACH 52-850 ;;di.an Cleat m 52-851. K,liwn Sub·panel 52-852 Cand~labra Sub· panel 34c 52.855 ('andrlabra {"leat ~2C 52-853· Beyonrt Sub--pancl 5c 52·854 Intermediate Cleat \SC See page J 8 lor panel mounting sockets.

GENUINE G·E MAZDA PILOT AND FLASHLIGHT BULBS I C.t:"neral Electric M azda clear pilot light bulM. Famous t~ world over for their quality.

de-~dabilitY. and 10nR life. Standard bead calming. Type 40. Brown bead: tY~ 41. fJ. 50. 51. and 55. White brad: t)'l)CS 42 and 45. G n=en bead; tYpc3 .... and 46. Blue bead; t)'l>t_"S 48 ami -&9. Pink bead. Cheaper than fort'iKn-made bulM in the loog run. -Indicates miniature baYOnet ba~. tIodicateli small round bulb. Av. ~hpg ...... t.. J 0&.

RADIO PILOT LIGHT BULBS MAZDA FLASHLIGHT BULBS

S~o:.k L~-:.P Volta Amp. [NlilH o~o'''O 5Z=iOi"" 41 2.5 --:so Si:it so:sT 52-101 4J- 2.5 .50 . M .s. 52-107 42 3.2 .35 .12 .71 52-liS 40 ~8 .15 .0' .s. 52-liS 50t ~8 .20 .11 .59 52-1I' 51-' ~8 1.0 . 07 .n 52-120 55-, 6-8 .40 .07 .n 52-11l 48 2.0 .06 .15 .11 52-1I. 49- 2.0 .06 .15 .11 52-10' .4- ~8 .25 . 09 .s. 52-111 46 ~8 .25 . ., .s. 52-liD 45- J.2 .J5 .12 .71 52·J12 47· ~8 .IS . 09 .5'

S6 115 VOLT PILOT LAMPS

'

Rat'" 1500 "n. avo .,,". Ca.d.lab",

~ ~;3d4e:. r:u~~t!.V.~ E~ ~~ : .. 1 5c 52-347. 3 W att. NET . ..... . 25C TYP E C7. A!'I abo .. ·e. but cone ~haped; 2~" length. 7 watt~. \"·t .• 4 oz. 52-355. Clear.

;~:~~;: ~l~ei:ACH . ..... . 10, AC·DC LINE CORD RESISTORS

6·foot resistor cord supplies

r:rO~~b:~ol!;ar~ ""!f"-~:5 ~15 S('~{i a~

StookNo. Ohml jStOCkNO. Ohms } 49-510 360 49-51.7 220 NET 49 .. 511. 350 4 9"5 1. 8 200 EACH

:::~l~ ~~ :;:~~g:: 47 c 49-516 250 49-522 135

UNIVERSAL AC·DC TYPE 6 resistance values up to 3.30 oh ms. Select rt'sistancenquired andclipoffremalnder. 6' cord.

4a·530. NET . ............ . ....... 6S.

Stook~Le m p ""_,,'V ,t A 1 NET I BO;-No. No . - ! 0 • mp. Eeoh ., 10 52-11l --ziJ T -rr o:J5 ·SO.0""9 so.sr $l-U 2JJ 2 2.J 0.27 .09 • st 52-101 tJ J J .8 0.30 .09 .s. 52-101 14 :1 2.5 O.JO . OS .s. 52-10 JI 5 6.2 O.Jo .11 .Sf 52-127 136 I 1.3 0.60 .11 ." 52-U' 2-&8 2 2.4 0.80 .10 .Sf 52-U 605 5 6.0 0.50 .10 .Sf 52-325 112 I 1.1 0.22 .09 .st 52-U~ 222 2 2.2 0.25 .0' • Sol 52-14!1 PR·2 2 2.4 0 .50 .Il .76

:;::~:J PI~i ~ I ~9~ g::f ::: :~g

TUBULAR 120 VOLT 4·WATT PILOT LAMP

Nev.' long.life 4-watt tubular ~' I ~~~~a-~:ltr~! l~~P~'i~i!:1 U.I~ , . . Government lpecificatioru. Ideal for usc behind gmall panel openings. dlal:l. etC. Il~ the appearance of a radio pilot lamp. Size: Yz" indiametcr; I~·

1:4~~~.S1pfIT~~·: . ~ .~z: ... . 39c

220·110 VOLT AC·DC LINE CORD

"MAKE·UR·OWN" RESISTANCE CORDS

Color-coded 1i~-cor(1 ",irl"l' ,\ilh a.!lbestos-covcrM re1Ul'tance \\;~. Easily cut to giu.

30 Ohm. P;;~1 60 Ohms Per rt. Le n gt h Stook N0' I N[T Stock N0' I NEY ~ 49 .. 58 :1. 22"C 4 . .. 571 22c

25 Feet 49-562 99C 49 .. 572 99c

6 LOW PRICES, HIGH QUALITY, FAST SERVICE

ELECTRONIC TEST EQUIPMENT TEST EQUIPMENT AND WAR PRODUCTION

11ll" gn'at~t job of ind ll!!olrlal l":tl:llan"'On a nd production in hi!J\ory i!l l.tkilll,t LJla .. ~ tocJay - pJall .. ·_taDI,;.,,-----.lIiJb- Kun.-in quaOli.ti~ 10

:: .. ~~~ry tJ~~:K~i~i~d 41;!d ~~i!~:!;l"fi~ldh:tf.:I!:::.:!~i:~~7:~\.~~~ tlac l"3r1'l. tl ... • \.ft"y 1It"n·c anter" of all the armed fOTa=lt--l)ruduo:lioll tnl"tIIl"I ", hert."I"'ore only dreamt.-d of. \\'\."allOR!Io alld toolt! of ahllUl"t UII· ..... Iin·a l))c .:I1'C"lIra,·)·-1hnte arc lhe .1C'\"dul,ment", at Rad iu allli EI .. -c. Irunkao all,l an! lJI,Nlible ouly thtuul-:h the U!lc' of Ph"i:don ,,,'!It Il'quip. melli . \\' ,. OIt . \ I. I ... J ~O ar,· prowl ... nur a.l\·untalol"'Ou" pu:<itiull \\"hieh ,·n· .,l!IN n .. tl' un."L·l tlu: cJIt'AJall.l,. of in.III"'lr)' anrl 1111: armt.'d iorL"eII fur tile I.r ....... ;..·..iuu iUlilrulDt!'Utli ...... "itlll tu th .. · :t11l. ....... __ lul cundu<"t uf tilt: war.

RCA TEST INSTRUMENTS 162·C RCA·RIDER

CHANALYST Tr:to,;t· ,. ,Q;::H:.I Ir,'m PI"tenna tU"I ... ak.·r 12 luhot·,,; 1(1"-1 1-' "'",nll,,1 n.n·r,. (J5 Io.:t' to I lUll Io.:( ·;,-.·ill:' .... r ..-! •• lIuh ·1 CI>\·~r:H .. "'· t .. 13 ~It ' ; ·\F l·lt,ullu·l. u· .. ;ao ... I1.· .. _ .tl"'" It )' cnuI)I, .. I. I-: adl .. -twnllc-I " 111' pin)'" C:H 1t{,"c·rdY tUllilu: c )'(.' . 110- \\'::JltaKe I1ldiC'"dlor. z"ro ,·.-nter readin" el«Irnlli(" '·oltlhrler . .- ra~" fJ I ... ~UU \·olt,.. \ 'ollmrter it.l l'"t Imlk-dOlncr. 1 1.000. · OUIt ohm". ~ I ~allun.,. line

":llIa ... "(": r.:ain·fM"r· .. ta ...... ·; Ol)f"f'alinll \·01t .... '>I; o:<ri lldlor (rt-f\ucn.-)' · ('hrckll .'U.nl,·n ... ·r .. : 10t.-aliz,·" (h .. tonion. nol ... ·. "1<'. C~unl'lrte wuh tlllJCtJ and ", lIi("Iolo-d t"ahlN \\·ith probe handl,"l'I . M ~a"lIr .. :t 10%- I: 1ft' ~ CY . F"r ~~:IJ~~~I 'N '[~O •. ~ ~I">I. Sh(1K. \\.t.. 2~ 11,,.. S 1 07.50

167A TEST OSCILLATOR CO\'",r" I<F r.uu~e fmm 110 ~c to jtl.OOO KC. 1-larnlOnit'1i at lill' I..,.t hanoi may bt· u~ for U. I I .r' . The .:I,ulio mooulutiun frrq ueD<'Y i", -14_, <,yrll.,. . ILul 8 \'011 output for tt."o1I· inK 11lldio circuil". (-lc . Al aximum kF ulltput nu low raftl(e itJ (I I \·olt.

;'!~;~~ml r~~~. '}i~I~~~ ~I~I":'II~ .2 mi.TOvoIt.o . OulpUI imprd;nk'~ arr 10. BO. ami •• 000 ohm • . 8Iu",. gr;.y mt'lal cahin~. J J%~~ ~bth · .

.., .• ,"" , WI" , ' 6 1"" , 539.95

154 AUDIO OSCILLATOR 01ltPili I" .lO to IS.(M)() C)·d, .... ± I dh . fnlm JO 10 IU.OOO c)'cll'" alul tlnwn 2 ell.. :u 15.000 ~')"dt" "" Out ·

::.~:..~~~~~~i~~~.Of~ .. :~r~I~~(·:: 250 ullm kNid 10 Ji ." \'01111 al no load . Powt.-r oUlput i~ 125 milliwatto4,. Dilllonion le>'tO than $% R~ I S on.-r rUli.r", ran",'"!!!. Gray wrinkl. tini"ht"d c-ahlnt"t. ~VJ· x 1."1. · :II: 6y'!· . ,,'jtll Re.\ tll~. For I 10-120 \·olt •• 50-"'1 <,>,<".,\\".,191"', 557.50

165 JUNIOR VOLTOHMYST The IbS iii a pu,.h·pull rl('("lronic \-ollmelrr an(1 uhmmel",r. DC rilll':,'" are: o-j· I(J..j().IOlJ.. .. OO'" 1.000 \'olt" wilh a l"On.:ll3nl input tt~:otanC"e .. f II.(J()U.OOO Uhlllll . TIll' .\C \"Oltmll"lPT' ranKe.c are: ()"1IJ..3()·I(WJ ·,~I.OOU \·olt .. at I .OOOohm>l

!:;a:::l:\~~jrc~il~¥k-rd~~;o:-U~I~~~~!;'c::'l; lII~ure", from . 1 ohm to 1.000 Dle~hm!!l in ,. ranG:l!Ii. ~o zero n'!I("t r~uirt'd w hen chanj,t· inll: veal("'8 and no lead" to "horL :\1~lrr acrurae)' {II ±1% al full :K"ult'. The matdn .. 1 pair muhiplirr ~"tOtti an· a('("urate' lo±I ~. ~turdy weld~d "h ·d ca~' tn Cf'Y:olalline Ira)'

.~~:..a~:~~kt~~l~~laj\dl~~t ~t"~t"d:'l/~! ;1.~~ 11H':' ,<o~ooqd", WI " H Ib'., 537.50

155·C 3" OSCILLOGRAPH

TEST EQUIPMENT AND PRIORITIES The war ha.. ttrt'aUy inctealW"d thq deman.1 for preritlion l~t eQuipmelit. The lIt!l..'d,. ul our rapidly cSI)andillK arm..-d furce.. war industneal all,1 lraininl: ... :hoolll ha\'e tast:.1 the iu...trulDent nl"tnllfw:turenl to capao.it,y .

~~~p~e::.io~~~~l~7:;lud:Ur...:,.;r~iri'~~Jo~;: .'r.~rct;i!rit-:· bt~l. lWtt.ed. Tu .. fW't. .. 1 hUII,lIill~ u{ your orolet'. I"llI"3tJC rxteod hiK~f..~t IlIUt'>:Ilbl .. · l)rioriU·. I n lIIal'l), C'8"'C.~ tlhlplD ... nt t:.ID h .. · made lrom .. tocl,;. . ALLJE U · .. Pl1rcha,unJ.,: 1)'·I).;lrtnl. ·u t I .. III ''UII!llallt ,"Ulltin .. 't wi.h lh .. nHlllufactun:t"tt

~a~:1 ~ .. ~il':.~ 1::1 ~!::!~:::~::~ ~III~ \i~~:ltI~~!~~~sll~~~lty ~:~i:~~t :~~j'la~;~ aud to :tUI'I)ly latlNt I,riurity data. ,,'rite lur tll~tic illiormatiuu.

HICKOK TEST INSTRUMENTS 188X FM·AM UNIVERSAL

SIGNAL GENERATOR n.· ... I..:m'fl Inr itllOll\'zinlo; 1-' :\1 as well :. .. \~I r • ., vi\l'r ... t "'lII iJ!UUU" fundahl,· III.&1 ,,'H'f..'fll'-:e (r .. m if NI ~C lO lin '\Ie ill ; r .. I1:.; .. • .. \\';'11 an ac-

.;!r'~:l rlllll~::I~ I' t~ ~· i:~. V\{f kr~\::~~~ KF WIth 150 ~C 'O\\f..'CI'. h .. lh 10

k~} 1~1~'ld~II~'1 \\!~ h .. i~~ ~~'I,::\~·kPr. UIIIHOOIII .& to.;.ol. ,\F 1(Jf). IO.(W,")·.·I .. ~. .\ F .-OU rydeA fi:tJefI. ,")·I ... hrl.uiz.:cI 1l"("(,,P \ultal-:(" for ..... VI .. · u .... · an.1 , l·r)·"tal"'Ollltull,-d UIIII)ut,. \\-;tl l an

~::~;~·t::,.,; '~t ''.llJ.t ,;.~:,~ I i~~~~~J~ ~(" IIl l1t, ... llIlat~1. IUUII Io.:(" · IUIJ :\Ie mu.lul:'I,.1 ill -lOCI ey ... I ..... anrl 11100 10.:(" · 11111 ~Ir unmn,lul"t,·.I . 'Icier rt'3.I .. : I II t" ~ IS .Ih. itl1.1 r"' I ·UJ \1.1t- ", • r .. nz·" \\1' 111 lUIM· ... ""1')·"lal. ,·a,u_. a,ulluanll::..l . 13:'( 13 11[ 7' . k'. _ ~I&O~·"NE~ · )···.I,""". \ Vl .... aJl llloc.ll.I ... . 2~ . I.I~: .... 572.32 84· 101 . \toile! I K~ . Samc ObI UCSX but 11t' ..... t'T)'stal ,In' I ,~· .. t il l tu he' NET . 562 . 92

155 METERIZED DYNA·MI,C TRACEOMETER Ff'3turt'!l ~ I eterizoed Dynamic Si~nal Tradn.:: OIl il>' bePt. Fh'c I'rt"d ... iun mc·tt·r .. all.,,,,, tracini: and mt"a"lIrc· menl of -:il{nal in any th'c .·ir.·uit.>l "imuhanf..1)II,.ly. I)e:tign uJ \ lh·uum· t ubc·\·uh meier circuit~ I),.·\·(·ot'" nu.·t~r elaIUa".,::", from 11\,..,10:111 . !\ It":b-' urc .. oti~nal in micrn\'olt" at any kto~ or I F p.inl in .'1 . I flrlit:'oh'" :til DC. 4\ Ve . . \flC. IJO" .... r !lUI1ply. eIC .. anol .~F or .-\C' \· .. haj(l"OI. I< 1'·· 1 J-O' CO\'C'rlli 100 10 IKlIO Io.:C . RdnN;l'1l ah: (J..5.IJUO ... 1.~.OlJO.loo.nuo nllt."Tu\·ol"J and ()...5-Z .... -1fl.2;'; \·olttJ. O .. dllator ('0\'("1'''

bun to l iOO ~('" 1.7-5·15 !\ IC: \· .. Itft.K~ ranKIr1I an': 0· .J·I .~.7.S·Ju.U amt 150 \·ol t ". I)C \"OllmM e r ral1~e,. ar~: (l.1 . .s· ... ·2S·.~()..2.s0 a nd SOli \·olt,. with a zero-c=enter . I U(1111 i mpt"flann.- illl 18 mt:'lol:ohm"'. AI' ('O\-,·r .. ().. 1 · 1 .5 . 1 ()..5t~ I OO and SuO \ 'Uh 8 al all inlmt impc!dancc of 2 D1t:'Kuhm .... ~'~ -i ~6~ .x ~'t+ WI .• 50 Itn.. For 110 V .. 6U CY~I~ ... . $ 1 26.42

RFO·5 3" OSCILLOGRAPH OtT"'" C'OmplC'tc vi.ual analy~" of a l'Ii"nal. \ calihralecl IlN'l"f'n allo\\'" quantilali\'c nl~un'"

~r;~~ 1"1)C')OI~.~ rc.n·1 ~::u~"lI !"/:o~r;:I~~ rct;1~ quem')' moolulaled OltCiJlator. 100 to 900 h:C tn\.rt"J) (b."..i, ' fr..-.luen("y. 2J }ICl ami a IU-.'O KC !C\\ ...... ·I) (h ... l.>Cic fn."qu\·n.·y. W OU h:C ). The \\id~·b'11111 ~il1ator ran br m,tdulallocl C':II:tl"tDally by a ploUIIU I,ic~ II .... mi kr or AI' OIIl.;lIator to (1roddl' ~ fr .... ,ul· nCy ~lv.lulat~1 tran1'llDillt!"f (or c1u."Cklnll 1' :\1 ~t·I\-rr ... "'0 Htl-rnul olll';lIator i .. "' ... llliro:d at> t hc 2nd harmonic uf 2J !\ IC fall" ill Ille ..,.ntl-r of Ihe -12.$0 M e F !\I hanrl. 1l 0U' "'turn tracc rlilo· inalor. fulW' protl"O·tion. pilot light ami fJIoaliiog control. SIte. 1 :t 1.'. ~~~~~ ..... :u~ ~,: .V .. 60 C'Ycl~lI. WI .. 50 II~ . .. . .. 5 102.02

202 ELECTRONIC AC·DC V,O,M, ~I ak ... ,. all .\c. or.. AF. and mO!llt rNII(an,-'C mea"lI~nu;"nt .. whi le th~ , ... :1 I .. in o~.,.at;on . Cin"lJit dr,ti~n of lIll' Inaltrunlrnt pro\"ld~ prutectiOiI aaain,.t accide'ntal o\'t!rlllall .. ,. \VC .• -\''"C. F~1 dltlCTimillator vult;.", ..... , "'(<..1.:"- ~ain . rt .. · .•

I· a t lin"" pn .. -ioaion aD11 Ih:htwrhdll (K)nability. lIlalo' hI,' IlIra.cuted with the dr.-uit ;\1 1'1-..,3011011 . Ampliric, rC"IJOllJlc. flal fruro 20 to 90.000 l' lo'"C:'Ie.c. I<anl(t.·",: 0 .S-1.5 - 1U-;'i().. l.-.o- I.UUU\', .\C wIth a n

~~~I~.IiI."Sr~ftl\'j~ ~hll!~:m~I:'pfi~l~;. 5:w6:::1~~~ ~11~:! ~,:r:7:a;~~K::; ?rf.~~ ~~tJ-'-';~I~~·:~n\It:~: I~:\ I S peT" inch .J ... 8«\ioo; with amplilicr •. 5 ,-olt DC \\-il h an illlJUI imJ)("flaDl~' of '4 mrKtJhlll"; k\l~ JK'r il1("h dd1e..'tlon. V,..,·", NC.\ 3 .\1'1 - O-! .S- lo-50-:!SO-I.OOOma. I)C: n-tIi .. tana.- tr"m lJI'w .. I'1 ralhod,· ray IUlN-. ("'abint"! ha .. a IJlllc· I oh m 10 1.000 Rws:ohm .. in 5 ran.:." \I';lh Io:r;1,." hakftl I~Hwr fini .. h. Size: 15· x S " J[ l.t ". a .. ingl..- z~ro ad;u"lm~nl fot aJl rantrt""'. H, d Uliful C'tched fi n i!'h front hanl·1. !i;lrramlint!d Shi"'lded II1"tIoI prod,," S..-If-<'Ontained power "an-yinll han, Ill'. POWN con"umPtion. 50 \~·nth'. IIuppl)' 11:11... .. I rach: 6X ~r. T. 6J 5. 6 .. 0';07, COInIJI .. t.~ \\ ilh lut~. For 11 0 \·olt". S()"60 cy ... ll'll.. VM. 150- .m. Pilot Ih:hl illftil·ator . \\ Ilh tullf"4.

~I~):o;~'" '~~IT ' . ... $78.00 :::~·10 ::. ~N7~TF~: . I. 1O .~.: .~~~. ~~~~. \\·t.: .1.1. ~I~ ... $46.30 SEE NEXT pI\GE FOR ADDITIONAL RCA AND HICKOK LISTINGS


RCA IU VOLlOHMYSl

CORNELL.DUBILIER

:D~"::~ka ·:-~S:~n::: nfr~I~&~oO~I~12'l3 ~r~. 9~ 110i:;.A~;-t~ . ~~~ .. t~~:.1 8 ..... 150. BN C.mpad .rld ••. MI"~rl"!I C'Ondnuntl from .0001 to SO mrd. ~ llAt & 6AF6G tubes. 3 Jbe. NET . .••..... . S 11.64 ...... 2. c DA-S C .... ~h.r Oeea d • . From .0001 to .011 .fd. In .0001 mId. :!Itepe. 600 V. DC. Toleraace. :1;;5%. 41b$, NE T . . . S6.35 ..... 53. CO ... 5 Cap.dt., Decad •. Frnnt

:~I~:l~:~d5 ~:. s~i:. o~ '~t ~fd: ~S~ ,I ~<g ........ COC .. S Capacitor Decade. From I .OtoIO mfd. ioltr~oI1 .0mfd. 600 V. DC. Toleraocc:. ±5CJ.- 41bs. NET . .... . S11.29

DUMONT 8 ... 780. lU·[ ]. O.c:ltto,raPh. Srn.itive.

~cb r~-:;~~ ~-ra'd'a;.~ ar:~ifi~1I7 ~. 1~'1~ <.':mplete \\ilh tu~. 1S tw, r.[T . . 164.50 ..... 756 . 2U ]. Ott:llfo.raph. Vmical ads aml)li6~ rt"t'POD~ 20 CPS to 2 mrc. Lint"::.r

8'ii~5{'~5erb:.' NliT~~ .. 3.0:~ . ~1i'3~~~ ••• 751. . UI 5· Otdllo,r.ph. If.u 2~a~

~~~ ~r~~~~ ~:~~ ~~~~\ittj, {~.~ t5 ~ Il'" 1l8· .",0 I~. NET ..•... .$ 127 .50 .4 .. 754. 115 El.ctronl~ Swlt~h. For ,it"w·

~:a~aI::~"~a~,~iC-:-m;ifi;:~Co=p,!te--:.f7h tube,. 1I'111l7'1.1IlU·.1l It.. NET S71.50 84 .. 752.201 5· O.cllloguph. Wid~ranitt'. &t'tu.iuve amplifiers. Sw~p drcuit. 1 to 50.000 eyelt'S. Witb tube1l . 1'\41l19~ X81~". 671~. NtT .. .... .. ... . .. . .. . ....... . SI67.75

!'i~h~~u~ ~!!~r~· olo~~~lz~~r~~~f1!~~ ~~~~~~7n.ii;c;r~~~ 6t;l~~eN~;.2~·, ~\~'8 8 ... 755. ns Ltn •• r tim. b • •••• n.,.tor. . ! to 125 (' PS (lw_p. Balanced output Marui , ·"It.J.C ... •• 450 V. ~al.: to peak maL undifltOf'tftl

~tt~~~ .. 1.-l:~.".8.1:~:'.' .9.~: .. ~~P&'. ~i2 :~.~O

HICKOK .... 1.1. ... RFO .. S ]. 0.cllI.9r."h and Wohbulator. For AM. FM. and lele,i~on ""Md.na. I>t"modulator for shtnal.tratia~ . With tutM-• . It x U x IS'A-. SOIl>:,. NET ...... Sl02 .. 02 ..... 1.0 • • UX Cry ••• 1 Cen'r.lI.d Micro" welt C.n.,.to,. 100 ICC to 120 MC. Cn-.. tal aCC-Uracy .01% . Hall buitH. VTVM . With tubn.IJsI6&7 ... ,JOlbs. N[T ...... S94.08 ..... 1.09. 111 AC"OC VTVM . o.Ui .. 1.1.Ci. 7S.15G-15G-1.S00 V. DC and G-1..5·3-5G-150 V . AC.l1 & lJ s 7·. 11 Ibli. NE T .. .... S84 .. 68 ..... 1.1.5. 155 Tr.~.om."" For arrvi rinR A ~I. F!t.l. aad TeI~'!s1on recftvc.... b)' I h(" !:lienal trad.nK method. Ilu:t 5 tarter.. \\ it h tubo.".Jjx lOll llY . 50 1lH. N ET . . SI26.42 8 .. .. 1.00. 1UX Signal Cenerator. fb .. AM. F!t.I . aDd Tclr".illion ~'~JM; 4 CTY .. taJ · couuollrtJ outpu'. and a db M"M". \\lth tubfoa., cry.ta l. IJ a: lJ & 7-. 161b;i. NET . . S72.32 8 .... 1.01 . 111. Same 3 S "ax nbm"e.. but lPN CTy~al aDd crylltaltUbt. NIlT .... . S62 .. 92 .4. 1.02. 177X. Same a,. lasx aho,~. but 10: .. m~ler. Whh crylftai. NIlT .... .. S62.03

8 . .. 103. In. ~amr ....... tsax abo,,"e. but I~ met~r and C1")'lItal. NET ....... . S52.33 ..... 1.06. 202 Electronl~ AC-DC YOM. K .. ull .. to 1.000 V . AC ani' I>C. and to 1.000 mt·t.:obmlO . • O~ & S & 7·. 17 II~. NE T .S46.30

.... 1.1 I. . 2105 Jurnho Z.ro Cu".n' YOM. lulialte ohln~pn-·"ol l. 9~ x 8 1,4 . lUCIa". 16 & IJ x 7". J51~. H£T . .. . S67.9 1 8 .... 107. SlOX Dyn .... lc Mu'u •• C.n_ duct.nee Tuh •• nd 50 •• T •••• r. Checke c::,paC.';lY aruJ Ir-....... :;c uI ,4)tuJcn~l8. 5· mrtrr. 1-1 " !JJ. :16". 211~ . N ET . ..S71.7 4

HICKOK ICont'd) 84 .. 1.0 •• S]oC Oynamlc Mu.ual Con .. duc. a nc. Tub. T •••• r . 11 M micromhos anll ··Good·?·Replacc" lIC'alt'1l. l,..ras 8J a nd 5W" tubes. 22 l\)s . NET . .............. . S58.80

r .. t !~J5~ 6~.J:ribs~~ ETOO:-·r:· bu~ .15'i~~o ... .. 1.12. M.d.' too Unher ... AppU.nu

!:::~~. ~~I~t!~J:~~1 1:~aIfETc:138.8: 8 .... 1.1.3. nsss AC .. DC YOM. St:nsi ti vit y .

!~ J~~flb.~·~ti:l.~~~~ . ~~~ . ~;19.~9 MEISSNER

• .... 950. Analy. '. 9S· I700 KC. RF· IF Channel. 4.ranw:e el«tl'OaJc voltmd~r. Tra~ siaoal. .JS 11.15. NET.) ......... . S94.32

"RECISION ... · .. 09. E20C SI.n.' C.n.,. •• r . 90 ":C to &8 MC. 4 outPu ts. W ith t ubes. c:abl~. ~tC:. 12 ... 10 '11 1l6·.:ZO Ills . NE T ..... .. S43.07

... .. .. 1.0. 112·A II Ran •• AC .. DC T •• t.r. Rnds to 1.200 V. IlC; to 2.400 V. AC: to 5

;;C;y, :nl~ . l~b~N lT~· ... ~~· .• ~~S118~2fi ~.!~~'!~o s ~~~J:.r;o..'i5 ~~r.;~~m batteries. 5foe pare 16. 91~. NE T .. S 2 9.06 .... .... 02 ..... L . 5ame fl.. '44P abov~. but leu c:ova- aDd COntpat1lMot . H[ T .. S 2 6.90 ...... 08. IS'" •• ". R.n •• T .. hr. Covrn ~d:·I\ioll~.am.JiTn.~: ~~~ ••. \~~I~ . ~~~~3.0'1 ... • .. 0 •• ISiL. ~m~1t11856Pbutl('S8rovet'. 7~ a: 8'111l ' •• 91be. N[T ....... . S40.92 ....... 1. •• '12 MC" Tu •• T •••• r. ,v." m~ttr. T",lU all tubn an<! dry batteri~. Sizt".12&IO!li &~ . 19IlJs. N[T ..... S40.91 ... . .. 1. 5 . '12" . ALII abo,'e but la port3b1~ ca~. Ull J.J x 6·. 19 Ib,. HET ...... S45 . 23 ..... 0 • • t20e Mutua' C.nduc'.nu Tub • .nd S.' T .... , . T~t~ ni l tubr ... Ha .. JJ ranl:C rp:18 .. ~·~~IIt!':*~ E"Te.t~~ ... ~ouo.t ~~ .. t?Se·4 ~ ~ 3 ...... 07 . '20". Same 3 (111 920C but 10 port .. able C~. 11 & IJ & 6·. N ET ..... S64.63

RADIO CITY PRODUCTS • .. .. 223 . ]09C Tube T .... r. 3" meteT. l la .. I)()I~ ami I~akar;: f' t ..... t~. Couater mod~1. f) Jl IloS·.IO' ..... N[T ......... SI8.57 .. .. 22 .. . 1O,r. Samr a , .1OQC but ID port .. aWe c:~. 1) .1,4 & U:I. 7·. H[T ... . . S2 t .02 8 .... 2 25. nop Tu b. T'tI"", 3· end .. r . Ib.!t

~w~~ .. ~l1ilz'i~41~~T.l.~ . ~·~.r~a~~~ .. . ~~'i.&3IJ • .. .. 227 . noc. Same Itlt 310P bot counter model. 11Y, & lll/i Il 7Yt" . NET ... S25 .. 43 ..... 21.6. ]UC Tube T .... ,. ., m etft'. Pu"h·bUlton. CounteT model. "'or IOS·lJ5 V. 1IIlIIYtx7Y,·. ISlbs . NET ... S37.19 8 .. .. 2 30. ]1] r. Uk(" 313C but port.~un· ler t)·PC. U & 18V. & 9*. NE T . .... . S 4 0. 1 3 .4 .. 200. Ul Sup.n .... r . ,n ranK"" AC-OC VOM . 5.000 o h m .. pt'T ''01 .. . J " metrr mt'a><Utel up to 5.000 volt I'. \Vith 1.M..ltm~~ . In \lood cuc.7~IlS'II&JY, ... Jl~ . NET .... SI9.06 8 .... 201.. U1P. s.m~ :l.t '11 but in hinptl .. OO\'f:r wOOl.! ca.c. JYt I~. NIlT .... . S21 .51 ... .. 2 .. 2. 'U YOM . Rt"3d. to 5.000 v. tcf~Ch;~rt~~'i:~C;ot~;U~·;:::: . m:t~'; meter. 9Yt & 9Y. & Sy.·. 9 Ille . .lET " S32. 8 3 ..... 2.3. U9P. Samf':U "It) hut 10 portahle coue9% &U YI &6·. tOlbtt. NET . ... S35.77 ..... 22' . • 1S Coln .. M.chln. T .... r. W nod C3.!ilt'. 6 & J & 2V .... J lbet. HET . ... . S 11. 71 ."-231. ' 15". Same 01110 "'5 b ut Ie portable c~. 6 &,~ x 4·. J'II I~ . H £ T .. . . SI3.67 8.-221 •• 17 Appll.nce T •••• r . M("a.·nm.'"

~~~. 6~Pj '~ i~/~·. \T~:": : ~fT~ ~~'1 ~I:S :

RADIO CITY "RODUCTS ICont'dl 84 .. 222. '17". Samc 3... 417 but In bln~dc~·crCOUlC.6& .. ~&4·.J~Ib:s. NET.SI4.65

8 .... 237. U] YOM. J- m~t~. Ran~l"S ()..tOOO V . DC .'" AC; 0-1000 mOl' 0-10 Dl~

Ji:: 5':E!}~·. ~:.i~~ .~~t.t~~~~ . ~~:~.St23~~; ::6t3:~~~~".YJ 11:. 3:rt:;: .. ~:t. ~5~~'3 .... 2.1. . ""A AC .. DC Mu ........ r . 25 ran l'C1I. 1.000 ohms·pc1' "olt y met~. \YlIh ~ttcrtes. J ... 81oi: ~ S-.' I~. NIET .. SI3.18

84 .. 2... "CAr. Sarn~ atI 446A but. In

~r:~~~:~~~b~~{i:: ~'i;.~~~rr;· .';4 ..... 2~0. SOfiC AnalYUr Unit . Permit, fret:-poant tntinl .... ·hen u.'!IIt'd with any VO~1. COlX'. 5% :II 7!1i ... J- . JV. l~ . NET .. S 16.17

.4-21. 9 . SIC. Sam~ :u S06C above but I~ cu<. J'bo. NlT ... . .............. SI4.65 • .... 232. 652 EI.ctranl c Multl ..... r . ,\ VTVM; m· mder; 6.000 V. AC or DC; 1.000

9%i~~V. Il 7~~' NjY::. i:lT~~~~·. ~~6.55 ..... 233. cn V-7. U h 662 abovt". but has

':;1~ .~~~· .. ~~. ~. ~~~ . ~ . ~~I~' •• :-':·~6H.k~ ~!t ... ~34~ ·"~~~.V~.;ov~-i::"f:J~t~~~ 9~ :II 9% & Hi'. 10 lbot. HET ....... S34 . 79 ., .... 23~ •. 511 EI.ctranle Limit arid, •• For pta"I-..Jon r~!!tance te.lIt. 4~" s:ah·an. omf:'ta-. 141.' Il lOy' & 8~·. Wt .. 12 Ib:o-. NlT· · ····.···· . · ............. . SI47.00 ., .... 236. 70] Slgn.1 C.n.,..ar. 9O":C to 25 MC on fundamental!!: to 100 M C OD lIarmcnUC'S. 5 bandl<. Output unmodulatt"tl or mooulatttl jO~ at 400 CPS. Etc:httl panel.

1 >i:i'lt v.1:s.~a\Jt.~ rli5·~1.1~~ ~[\ .~s ~2k.83

8 ... 205. II' Tub. and S •• T .... r. A m&l. CT U lu~ ((·.leT and YOM . R~ad. to 1.000 V .

~~·~mr:;;.lru:emp.. t~~.O ~~,!:J,.;i)~S,g.'Q oflm~V(J1t on urldt-dl combinauon unit. 12 & 12~ x 6·. 11 I"='. N ET ...... . . S33.27

..... 206. 102 A. Same 3. AOl abo,'e. but al-.o

reo~ii::d i=~'~C~J~rbs~h~ [~ ~~~k46 ~ r~ • .... 21.7 . 10] Tub8 T .... r .nd YOM.

~~';!!rx:~bifi~r'!;!~ ~~~.;r.;~t~ I 'TsJII~' l"!Ii & lJ Il (I'. II 11.I!!. NtT ...... " .S38. I 5 ..... 21 •• lilA. As aooft but "-fth .~11'i Aoab"zcr UDit In iu COwr. HET . .. . S52. 87

R.C.A. 84 .. 03 •• IS. Audio Oulll.tor . J (J to I.!i.OOO cycle!. l,o.,v dll<tonion . ll..cdlent wave.form . 9Ya & 13~ & 6Y,·. 1911Js. NET .... S57 .. 50

... ..0.0. USC ]. Osclll09r.ph. Am plifi", nat 20 to 9O.0'l0 cycle:. "'hh gain of 40. Srru.i· th·ity .. 5 V. RMS ~t Inl·h. With tubr .. t.S & 8 & 14·. WeI.: ht..1S lbs. NET .. S78.00

..... 036. lSI S· O ulll.graph. Amplifier I:M:bU .... tY •. 04 V. KMS per iDC'h without cabl~.

5t.r k~.us;::~e~ f:~~~~ ;:'.~~IUCX:~4 f~ ~"i~':t¥. .~~I~ .. a~~ .. t~.~: .1. ~~1~&6~~ci ... ·023. uo-a S· Oscillogr.ph. Amplifier

::~:~Yj '~I~' t~~~ ~.II~~b~~(~{~ ohms: mall. !UKTtnl "olh 500 R M S. S~P frf'''I . -4 to 22.000 cps. With tubes. U~x8&19'A". to'''''. N[T . ... . .... . .......... SI42. 5 0 ..... 032. 1". Ch.n ...... C.n ... rt.r . For c'''(h~linlil: KCA Kidt"f' ChaGalyst (;:\bovf". ril:hl) for u-= UP to 80.000 KC. locludCOJ MW

Z!!: ~~oa~a,,!D~r~~!,>'~ \iF"m~ui~:;a\~~~; In'M i. I O~:II 9 % S 9~· . 5h(lg. "Co 1M 11 ..... N(T. .. .. .. S55.00

8 FOR VICTORY BUY U . S. WAR SAVINGS BONDS AND STAMPS

IKSTRU ENTS DELIVERIES AND PRIORITIES

All t~t ifllltrument~ are vitally f!'S.otentlal in thl! war clf~t-and are availilblc only unci!..,. hi"h

!~b~tit~a~ft'; ::d~"!.°rh~ ~~~H~/~~i~':'I!~tP=~ made. We caD promptly furnillh data on ('~!f1.imc priority requ1~ments and latert delivery Inform. .. · tion OD In(IUiry. Whenever W.P.B. allots t~t t. .... uipmrnt for en"i1ian UM'. we 8hall be amonK tile tint to supply . iwuuweDl.Ii to roldio "cf'Yice--mt."t1 .

R.C.A. ICont'dl 84-029. U2C Rider Ch.n.lwd. For !IIgnal

~ri~nf:C~:irr~'n ,,:~n~~~~F~~r R~~~ ::.; ~6d~c;~ri8 r~~ .:-~~~~.C .. \:~I~~~srl O'~:50 84·030. AF Ad. pier . For obo\"(". Fihrrl'l out 60 3nd 120 cycle hum ror more accurate

~~biema~nJ j~~ ~~ C!h~':;al~~~n:~ ;. ~\:'75 84· 020. Us Junior Voltohmwd. R rads to I.OOOV. AC or DC: 1.000 ml"2Qilm!C.. Input Im-

~~.n14 ~~!I~Tt:T~. ~~ . ~~~.~ .. 9.ll;l.'jo

.4-028. 1G7-A T ... O.(:II1.lor. CO"rn 100 to JO.OOO KC on fundamentals with out-

Gy! ~f :y-:". 6rA-Ie!~1. NI~~~1~~ .~.~r~.tS3~J.~ 5 84-03 3. 171 Au d le C ha n a lr.t. For aud io amplifier meaJIuremenh of a:a.in. oDt-'ratine leveJ~ . Doi~ and hum. Mca~urNl AF aDd DC

~!;-::Phon~r:~"::~~.liuiU~! ~~~n('~:tro~~ ,'oltmeter and "prakM' . The ideal unit for lUDINifierscrvidna:. 401b:s. NET ... S225.00

f:n:.~:!O';f !!~~~~:5.!~~.::~n:::~:~~tlid R~~:" ~:~l~n\O:~;:'°a~r~ldf."l~~~!:':~dir;:: ("Iud" pin jac k~ for m('a~Ureml·nt •. 41 I: 29 x fr. Wt.. 30 Ih". NET ... ... .. ... S75.00

READRITE 8.·700. 612A Tub. Teshr . T~t!t all tubel..

}'~~B~~'~;~'l~'or!if~~~ ~~-:.. r;~o~~~"a' 9~u:'J";.DisnJ~.lb ~0~i~~~~~~lIl2b~~ 1 •• -701. . 612C. Rame 3.A 4J2A above but Ir-M tool compartment. NET .. .. •... S19.26 8.·707. 612A-761 Tub. Test.r an" YOM. Read!' to 2.500 V. AC or DC: 100 ma DC; 1.5 mf"KfI . I~" I Burgi'''''' 4156 and I- ~I · I 'h V. baume!!. 1J:aIO!lzs7". 20 IbIt. NET .. S2 8. 96 8.·706.510 Yolt-Ohmm.t.r. R("adIl 0-300 V. DC aad 0-10.000 ohm:s. With batt("r)-' and I("ads . :lY, s 2% sr. 3 I~. NE T . ... . S2. 44 8.·705. 511 Yolt·Ohmm.t.r. R("ad.O-J-

!~J~d~: ~I~ f~O~~ JOIIt::.!'N ~Vjt~.;3t.tO~ 8 ... 708. S57 Bett.rr-op.rat.d Signa. e . n . r a tor . 110 KC to 20.000 KC in 5 band" on fundanlrntal!'l . \\1th tubes. batteri("M. ("te"'. 12 I: 6Y ..... 5Y. ... 12 Ills. NET . .. . .. . S20.37 8.·70 • • UI YOM. R("ads to 1500 \". DC; 150 rna . DC: 500.000 ohm". 1.000 ohm. PM" volt . J " Tripl~t me1et" . With hatt("tY. t("!t leads. etc. Jh6 ... 5% ... 2Y,·. 5 It.. NET .S8.08 ••• 703. U! YOM . Rf"adl to 1.500 V. DC or AC; 150 mao DC; 500.000 ohm!!. 1.000 ohm prr volt. J" Trtple1l met". With battrn. lrad~. ~tc.Jl-itJl5% ... lV.·_5Ibs. NET .. . S10.67 a . -702. 150 YO M. Read :s t o I.000 V. DC or

AC:~~.,:·.prt~i~t~ ~i:~;. t.s~d~·7~/~ :~~. Wei.ht.18 I",. NET .. ..... ....... SI9 . 26

SUPREME •• -.:1.0. 5UA Porhbl. L.h . Combln~! B n10drrn tube t_ter Rnd VO~L Read! to 2.500

}'4~~:1~~ X·'. ~fi~~ .:ff~:. ~~~i~ r:13 a.-a:l.5. SOU YOM . Rt'ad" to 1.500 V. DC

:.!;·~~~~~'i8dh~\;· ~::~r~~~t::,r::t~':';'~ 3 ... 5% ... 2%". 2 IWI . NET . ........ S20.33 8. - al. 7 . Identkal to!,42 above hut In mMal (""aM" ",ilb binerd C'ov("r . NET . . ... 122.49 a. - 81.&. S,u YOM . RPad" to 3 .000 V. DC ut 1.000 ohm" pt"r volt; 200.000 ohm~: 600 mOl. DC; 3.000 V. AC. 3· mrt('r. With ballf!I"Y. J:r. 5y .... 2' ..... •. 21lwl. N ET . .. . ••... S15.92 a. -.I. •. Id~tira1 to 54] abov~, but In mrtal cue with hingt-.:l C'O"'U. NET · S 17 .59 a.-.21.. 5U ] . O.clllo.c ..... St-nlliti\"~.

I'JU ;ar~l~n7':A~2~1:~~MH [\~~.al;~O~0.S

RADIO CITY 801 TUTU

RCA 15SA OSCILLOGRAPH

PRECISION 910TESTU

SUPREME ICont'dl 84.830. 5" EI.ctronlc Yoltm.ter. 28

1':XEmV~;~·1~:~d~oD~O~~.~:;. ~r4~:\il; f.4;:~7.;~'~~~~·ti:~·~~tr!c,:;~ to any pan of r("'("eiver. \\"ave all~I>·z« and frrq. met" from 65 KC t06.5 MC.17,.xl.1x I2Y.·.OWlbg. NET ............. . S160.67 .4·83&. 561 O.clllator . 65 J.::C to 20.5 MC on fundamrntalll; 15 to 15.000 m lPli audio.

~~~f~t~n~r1Jllaa!s~r NE,\-~~~Il g·5~i315 .4-835. SU Audolrnr . F or dYnamic !UK Dal tradn" of rC'CC"i\·erg. Ilal! demodulator whkll C'an be COnntttffl to an}' part of C'ircuit. 5-band RF 8Ktlon COV"!'! 100 KC to 15 MC. Probe d0r8 not dctune drcuit. Zero-<<-Dtrr vnr~1

12~~j~It!·.~E~· .. ~.~ : .2.0. ~~~. ~~~9:.~5 84·a40. SGJ Audle Oscillalo r. C ovr1'!l 15

~j~5::.C~r,.r:. '21 ~~~t~:~r.a.t1t~ ?~a~ a4-.39. 571 O scl11a lor . Cm'rf!l 65 KC to 20.5 MC on fundamentals. OutPut. .1 V. to

t.~~rI9vr~~· ~l~\n;~~.a.t~~ . ~~ : 1.~~4::J.3 a4-aoo. SS9 T u b . and lI a tt .rr T .... r. Sinille indrument for eml!Won cJl("'("kinK of

::!d. T~1! ~:I ~;~rt'~~ ~:~~J1 :~~;:. f~~ 9',4 Jl5~". 12Ibs. NET . ......... . S37.73 84 .. . 0 5 . SU T UDe T •• t er and \1 0M. Samr. a ll 589 above . AI"'Jrf'ad~ to 1.500V. DC at 1.000

:~;:. r.v.~I"~·~iii~. (~T~~sfi.;92g ~h~.·~~:oI~!~J::. ~:~~~:to~.400'V: ~~~ nc; f4 amp" . DC...; 50nwfC14;,j. +46 db. 4" meter. 7V. s 9 s 6V,·. Iv lb!.. NE ....... . S54.83

TRIPLEn • ... 535. 51ST YOM. 21 ranan. l 0.ooo ohm!' ~ ,,·olt . Rract. to 5.000 V. AC·DC; 10 am~.

5/j,; ... "2Y;1'."i ~~~ =,[~ .. ~~~~ .~.l~. ~2d~e: ~6 8.-558. C55 YOM . Read~ to 1.000 V. ACnc at 1 000 ohm" pc-r "'olt: 250 mao DC;

~~~;t-:~1%~12 ~~~t4f~~~tEI;':;. 5T9 •• ·555. ' ''H YOM . R~dll to 5.000V. ACDC all oooohm!l prr voh: 250.000ohmtl ; 500

;~d~~~ :~ 5,~r!1y.~'~t~bs~a~tr.r;. Sal~ . GS •• · 507. llU T ester. A tube t'-"!'lt("r and VDM. RI'ad~ to 1.(1)() V. DC at 10.000 ohm~ pt'r "olt ; 250 ma o UC; I.OOOV. AC; 15 m("g~. "" meter. 14% ... 7h.1: -1'.4". NET . ... . S53.74 S.-551. . 1200A YOM . Rf'&d!' to l.oooV. DC

Vt, ~\~ ~Im:a~ Aclt~~~!~;« Jx 6~tI .~ kW

U I",. N~ ..... . .... ...... .. .. .. $23.56 8.· 5152. 1201C YOM . 5.000 ohms J)f'r \-oIt. Rrad:s to 5.000 V. AC-DC' 10 amJlll. DC; 25

7~~·t~~7s\t;.efJ·,~~·':~~~'.'?~i35:·~8 8.·S.3. 1201£ YOM . '5.000 ohms PM" volt.

:!~~."7~:i ~~~ ... ~·~~i~~~ON Eriff.:34g 84-S70.1200F YOM. 25.000 ohms per volt.

~~:~~ ~~JI:':!t~'; J~C-~~.2~~ ::::ieP.~i"..3~ w • • SY,". !llbo. NiT .. ......... $30. 0 3 e.-S50. UU Drn.mlc Tuhe Tedu. Tests ;\11 tubrs quiclr.;1y and accuratrh. 1I~ !'(.·nsitive hot leaka"r C'heC'k. J. m("trr . "Good·~· Rad·· 8C"&le. 7' ........ 6!.i ... 5%;". "'I~. NET . . S23. 72 a.-566. unA B.tt.rr -Op.r.t.d S lln.1 G . n .ntor. 6 baad!lC'O"f'r 115 KC to 30.5 MC nn fundam~ntl\llII. Indh';duall y ~h i~ld~d and "alibratrd coIl~. J45° dial. Includ('~ -100 flde alldio not~. lIand>' field in~trumrnt; 22fI.A V.

6V~ ~ 5~~l:~I\tb!'l~a~t[~~. ~~~ . !lUPPI"~ 9 .~6 a. - 565. 1232A Slg n.1 C.n.r.tor. Alii abo,·e. hut 110 V .• 6OC'ycl("s. NET ... 132.18 e.-sOI..U70 A Circ u it An.lrur. RPad! to

~. ~C~~I~~OO~~~~::- ~~~!'a~-6~! C'On"umptlon mt1l~urrm~nt •. Fu!W" protl"ctf'fl. " .. meter. 7~ ... 6~. 5Y.'. NET . .. • 32.1 8

TRIPLETT ICont'dl 84-536. 1210 T.I .. I.lon Teshr. R eadll to 10,000 V. DC at 25.000 ohma/V. and AC at

~~~ 6'V~I~f r~~:~ 1b!~~~T. .~·S"3 3~8 84· S71.1G00E YOM. 25.000 ohms per volt.

~~:~~7~Om!i~lr ~ r;~~)i E5r .. ~~s fi:52~ 84- 572. Same M above. but supplied leu carryinot:l.:a.'Ie. NE T . . . , . ... ..... .. S 22.64 84-S08. 161l Tube Test., . lI a!'! 7" met.rr. 15 V ..... 11% Jl 6!11-. U Ibs. NET . ... S37.57 84- 509 . 1512 T ube T .. t .r. Same n!'I 1613 above. Ictl!! Cover. J8 Ib:s. NE T ... .. . S32. 18 84- s13 . H20 Tub. T •• hr. 1\ 1~'"-~witd1-lnll nl~)I~nN'-proof tube t("!l1er' ,,;lh 7·

I(r?~~ ~'~(/i::.d~ ET~.e. ~~ . ~1~~S·4 'JI:6 11: 84-SI.4. 1G21 T u be T . ster. All abovr. but 4- mcta. 12!11x;xlfY. 271i..l.i. NET . . S37.57 84-587. 1&]2 SI, n a l e . n .nlor . 100 J.::C to 120 Me on fundamental.: modulated or

rl~;::~~~~ I~ :fb'i\t~i5u~n~ I:m~rt: 31 Ills. N IET......... .. .. . .... .. S86.08 84· 510. 1G72 Ylbrator T.ster . THU nil

~ · 7t.t ~:Y:}~"i 1~~,:~eT .f~~~. ~ .V : ff2 ~r~ 84- S04. 2000 Test.r . Readll 1.500 watt!l at

~~.~.~ x1!~\~a~t~~~ J :~~·,Jt<i-:.~~i~~~8'4 8.-50S . 2an T.,ter. Same a~ 2000. but

~~i~~~;11:e:r~~:l!:~eer~("~~v.~. ~\:iSI2 2~~: 8.·506. 2002 Test.r. Same a .. 2000. but readll to IOamp8.; J .ooo \\"att~ . NE T S21 .20

HANDY " LlnLE TRIPLETTS" I lave 3· Ufetime Guarant.....t "Red Dot" meters. J! 1. s 5'.4 s :Iv." r...o molded (""iI*"". " lbe. 8 . · 5 20 . '70 AC Am m .t.r. Rf'ad", 0-1-2.5-5-1~25 amp:,!. AC. For 60 cycle AC only. 8.-521. . 511AC Mlillamm.t.r . Read! 0-5-10-25-5~1~250-5~1.000 mao AC. 8.-S22. U2 AC Y.ltm.t.r . 3 rani:;t'"!I read· ina 0-150-JOO.750 volta AC. 8. - S23. cn AC Yoltm.t.r. Rect1fi("r type. ~5-10-25-50-1~250-5~I.ooo V. AC. 8.·52 • • 516 DC Amm. ter. 5 ranKH rrru1 ~1 .. 2.5-5-1~25 ablPli. UC. S.·S25. U S DC Mlllia mm. t . r . Rend!'~I . 5· 10-25-100-250-500-1.000 mao DC . 8.·528. '7S DC Mlcroemmeter. 0-5~U)()' 250-5~1.000 microamPfl DC. •• ·527. cn D C Yoltm.t.r . ~1-2..s-5-1~ 25-50-1()()'250-500-1.000 at 1.000 ohmalvolt. 8 . .. 52S. UI Ohmmd.r. Read! 0-1.000. 10.000 ohms. ~. I-I-IO mf'p. With battery. NET, EACH INSTRUMENT .. ... S9.70

MILLEN 72·01.0. S150S Frequ.nc, Standard. ~ rlucrs M"'C"Ondary II tandard. lligna!!' :1t 10. 25 . 100 and 1000 KC . Dl'!Iigned around GE GIS and GISA crystal. srakd in hellum In a standard metal tube envelope and havln. a Ire·

~~Mtci~~a:.'!:rem~ni~~=ifi!rlha~ o:~~ r~a~~ ~tc~i~n~:e~od~~~~~ ~.rt~I:~ Volt~ rt'culatrd po\\'rr .upply. With tubes

~n~T~~tal. Size: 9 ... . ~~. ~ . ~~~~ . . ~·~.3~0. &o

NATIONAL aa-ol.o. CRM 1" O.clllo.cop • • 11M 60 eyc. ~W("('P aho rocu!'. and Ilw_p-amplhude

I?6t~l~ifi~~u~: 1~1! J% ~.n ~t~cj '''''. NET ... . . ...... ... ....... . .. $12.21

BROWNING


ELECTRONIC TEST EQUIPMENT FOR LABORATORY. TRAINING SCHOOL AND INDUSTRY

only to oUr f'iA:~ lInit FOTftll. c.o\'f'rnflt('n! A2'f"nrlM. tnd~u"ry. anct TrainIUR s..'hool. to \\'hom priori'i,.,. h .. wc ~ll Rfanlnl for tllr JlIII"Cha,.,. of th~ unil .... \ Vrhr or \,.;~ fur ,I~.ul .. , !'-oo~ laouU· ... ;.8 "IMI j) for o"'Olnl)lptr UIlUb&:t 04' tellt f.'()Uipnll'Ul. ur write!, J:I\;I" u .. Your 't."'Il,drrm..'nl :l In 'ull.

RADIO CITY PRODUCTS INSTRUMENTS PRECISION INSTRUMENTS

THE RADIO

TRAINING SPECIAL

423 VOLT. OHM; MILLIAMMETER t' !I(O'n!"ith'(' muhit..,.,." of the \'oh-ohm-nlilli· amme'\C"T t)., .... l't", 1110'14" 11...,1 hn..o a J" ,... ale. The! J9~ RlU:ro3R1flIII"" _O\'rmrnl hall an a ... <"Urac')' of 2% :tnd II _, .. Ii,,;,), n( 2.~OO ol,n,,. pM" volt. The ,\(" -1)( ' \'olu r .. n~ h:wr :1 .. n,uthi,y uI IUOO ohm. pt"J volt. Contain .. OI:l1l)' ou,,,, ... n.linl an" uN"ful (".Hun"'!' nnt u .. ually found ill :).n in,.1 rtllnrnt MhJ at ... k)w a pril."'l!. lIa ... a C'l'I'trr 1ft filII ",,.,Ir ratio of 125 on all ohm .. falll{r". l''{''''llt low ohru14 *--akrt"ad ... 5 ohm" Mml" \\illl 1"1 10 di\.;,qODIt rooad· ina: 0.1 ohm ... Il"3ch. ~'II .. hllnu all.1 multipllrr.iwJivMuall)' c:-alibra' .... l 10 a pJu" or minUli

:J'O~;;II'~~ura~~~~;PII~r.lI R:~::::I d.2.s.:~ SO-lS()..I.000 0(.' " olt,,; I). 1 0-50. Z:'O-I.000 I\C '·olt.!!; ()..1- II).I(lO·IOOO PC mill.; O-.5~IOO. 000-1 WI·I( . 10 lu .. ",ollnl'" - IU \.0 + 55 db. in (ourrnnl:'. ... Cornl.I_·I ,~"ilh 1 .. 'ltdl"lf.I ...... " trA (net". in ;1 hard",,,.f .. 1 waluut-tini .. llI'd ('U..~. "'ids wh~ and loulc-nmrrarlm("nt . Sizll!!'. iY,· So 5%" ..

~~:'2~~: 2~rT... . .... 523.03 8 4 - 23 8 . M OD EL HlP . ~mf' inJltruD~t a, .. :\IOfI("1 ..fZJ df'"<ribrrt :tho\'f' ~("'t>pt furni,.h",,1 ia 11 flQli,1 walnut hafut·rulll~ carryimc calll" '"fhh hinC'f'lI ('O\'M" and handle. fo.AlUipped al,oo \\;Ih a , .. ,ir of ,..,.., It.":tll". SIi.lIl". 8-x{I%'x"~4-Wt .. ·Ur".. NET .... $25 . 4 3

NEW 446A AC·DC MULTITESTER

l;1"Ar~:\ ~jlll~;-;' ,~~~\:k~lftf'J·;=. ~I::s. ti\';ty I.llnn ohm" ~ voll. RaQK"e1l ~ 3." lul-

~~:.~~' ~,~~~$g·t O-~·g~m~-:'t~:J.~i:: ~~~i~ ~~hl~ 'l.Ci~?"!~~ ~·~J5.h+"16D;! + 49. + .12 10 + ~j dl, .• and 4 output ran.:~ ":une 3.'4 die . ,C \·nlh ... The low rann ohm-

::;r~ .. ~~1t'3!·I~\' ':;: .1~\:;::~.inC~~;"upof')~I:: ... ·al" r.-ad .. 10 ohm .. . s,.·I .... tor IIwite'1I on fronl panrl. Catk' mC!3 .. urOi j- ~ "'Va· I: 5- . CoIQf'S , "; th M:U",c'otu alrM'd h"u,-rif'"~ lor ohmlDe-tB'

~4~4~:I "ij E1-··.' IIHI. •. s 13. 18

418 AC· DC POCKET MULTITESTER

A h:tondY porke1.";z(." \·olt. ohln·milllamllJrtM" with a J. tn" "" I'II.-ale. kt"l.ld .. o...2.!i-1~.:;'U . 2~~I.OOJ ,·.,It", buh AC and I)C: ul,... ()... I-IOU •• I.nuo DC milliaml ..... .,... IIi/r:h ohlll:" r:IDJ(I"loI "'ad 0 ... 11.1.1100 .. hnn. :mll 0 ... 1 m.·/{", ohm. I.uw ollm ",n~ r~lfl .. 0...500011111". ~1"lallta.-d typt!'

i:!Il~~:~it;:)na~III~~:;.n:::c:~\~ \\·( ..... 1 t,lJIC 3'.4· lI; 6 x 2 1,... •

~~~2 ~J~t~t[·T ...1 II. S 1 8. 1 3 84·240 . M odel 411P AC·OC Pock.t M ul_ tlt •• ter ... A ,.. :.1." ". "'1Wt'ftt ~'a. ... ' h .... hilllCll"'ll ('0\'"" a",1 .... '\(.·t)' 1:"" 11 . 11 (1Jj nllnl.;lrtRH"nt fOC"

~1l"1~\~?f\V~\.~1~9. ur~~~U;:~,*"d . Size-. ~.~O .. J~~

662 ELECTRONIC MULTITESTER A \· .. ·II unl -c" bto type'" ttn.hill ..... 'ft" b,"win2 Iliab input ","","IIUat'e 011 hoth \C aD11 IJC rnnl.,.oor.&. H:1bll:t'"'l: CJ....6 30 1.~~)f)...1.s00-600l 1 DC nlh .. OIl 16 :tntl 1(.0 RlC'Knhm .... (). '·6-J()...l:S(J·6f)n .. ,~.Jo. fllJl'JO AC \.'"{"t1t,.3\ l 6 .l)rwl 160 11 ... \.:'4. aOl'I ooty

i~!!,~:!;...~,.':t!r~~~~~~ .~~:~:"O~~ 1(X)O 'IM"ICOhhlll wlib k.w .. " t "" adi nll"il tuU.I 011111 ; .oooo.~ 10 lOOO mlrl. in ; raJl"..... . RIH().. .. ·" w~ldC"l.l ll}('"ull ,'QJW: futi"t",d in n).·luallinr Nr.l~·. Sift', q~" 'I 9"'~ :r 'Va-. COIhPI"If' with IPaII,.. h .. II.....-I""'. lutw-". "ntl Ililol lillili. For 110 V .. fJI' • 41~2\f;.~ft.fl. W, .. ~lb ... $46.55

70l SIGNAL GENERATOR Contlnltrnl"I)' \'mahle- trom QS KC to 1.~ ~ IC in 5 bafMS .. on hIIMlioIIlw·utal. an.t 10 100 .Me on

~~%"":.u::-.o ?;~t:.~ 1l1l~~Of~~~= ~=I~::::I~ In", l"lI,r-rJ1,;l1 l1'1IO'1uhulun frolll oLIlJUtie ,,1\'l"P drc-uit 'or .... ·iUt_",o\ ... · work.. tA"ak.aJCt· e-lin .. -

:::-tl~lla~~.r "';::,'''~~F ,,!~~!.~~~I:' of A~~D~"':i::)Ir.; lI",lf'UlIirn:'11I!!' micf"o\'oitll 1.)' ti,'e "tll!!'P Ind.ler· I)''''' allrllu:tlor. I 10500.000. POWC'I" "u(luly i.. .. e~'rt"'la"t .. II>' "hirltl ... l and thumuNhly iii , 1",(>01 . Dault!l.(lI,,',I . Sbe-.8·:lII% · ~5·. For

k'!.~·3j': NI[T\:d~: 1.:; Ih.. S 3 2.83

E200 SIGNAL GE NERATOR f)U ":C t .. ~ ... 'IC HI 6 h:UloI". D,rt"Ct.n-Jllinl: full -\·i .. ioll .l i. oJ. 6!,14 .Ii. \ ""mil'f p1'f"lUil~ R';tolilll{ to I p-"rt in 1,1.'" I>'.,.ianc·d 10lf

~;,;~I.i.::\ ,I'e \';:I~::;~ \~tll~~,t:! ·;,!:j~:~I~II,~. t~~ {,,·tllal AYC \'olla1<[" ,1,·,·,,101,"1 hy th .... fft't·iV"t"r. A .wih · " pr .. v i.I .... I OIlIl'lIt ... "nlnndlll.oll .... 1 Kr:' , "()II ")'\"1.: t"l1l11l~ luoelulated KF . t-.r;; .. h-mal mOlllul:nell RF. a .... 4UU cy("h' ;uulin. II: ... .... ~lihrau .. 1 I('F Mtrnuacor. In bla<"k ril'pl. ~t.,,·I,'3I'Il!. Sitt·. I Z". 10'(1· 11: 6·. \\'i(h tul .. ... .

~·4 _~~;': · ~£T~dt"2l . 2.11 I~ • • 543.07

8l2A ll . RANGE AC·DC TESTER

.\ UfOW all · purpu .... • U'lOt in·

i.~~.ll~~;~:.~. a~ ~,:'-o~~~~'~~li at tllC' (illl.:' 't'":I IUf("lf f'.Ju.,<1 iu l'n.'Ci"iu .. · .. lill" ttl ',-"!:IlinlC. ".uipul'r'nt. t I ....... a l,u.cc J,"" ntrt.·, ,\'"fth {illi Lcrunh. l.'aI'ily ,..·",1 . -.. k~. 'rut.ary ~ !'wileh lU3kl."lfo in' I"tantly avaiLolhl,. the dt"airaJ. ran.c~. Two polari .. 1 pin ;ack... provifie idl lDl ..... <4Un... ... nJrntJ' ~XC'rpt hh:h AC 3nd DC vollal('l"tt,

~IU~I'~~~~I:,:~~;~i(Mf~.~~~ ti~l- ·3~ar.'tm ul,,,, .. I .. r \ 'olt: n .. IZ-bO 'OC ... 6IX)..1.Z~2.·.00 volt" ,\C 1'It ~f.lO uhm" Ilf'r \'ult; B-l.2-IZ·I20-6(10 1113 . : O-$ .ono- ,(1"'.000 ohn,. "itli 1II"1feulltaf" ... 1 hOltt·ry. U_ .~ IDt'"KIi. with rl:(~r"al

:~~:;:!I; I"lt~~';~) t\·~tl~ltb·finIS~:iPIII~I~\:~~: C;:4~4;;O~ ~~; ~ ~" ... I 11.,. . S 1 8.28

CORNELL-DUBILIER CAPACITOR ANALYZERS MODEL SF·50

Thii!l in!\trumrnl quickly aDd accutately Uk-atlurl"!! import.aat ch:uactrri .. ,in 01 all typ'-'S of condrn ... f'r ... .

~wfr~:rd:O(::n, d~trrminc 1I~ ~. a.. ... t ..,,m.lition of aU paper. milOl. ,ulll c-lectrol)' t ic I."ondenaer!l . inC'll)(lill~ AC n'oLOr "uni111t

tn-. Eml"lloyll ;1i \\"1ft1 hridl(e. Fur 11$ volt ... 51 ... 611 "yd ...... , \ Vith It ... t 1.·· .... 1". t..t"!lll tuht.,., ; I'IeOfJuir ... 12.\7 and 6F".5. Sin': 6\1S:- II Ir s

~~4~4~·~~ · '~tt·.J"~ 11"... .. 529.28

MODEL BN BRIDGE

An ult.rn-corapao.·t con· tI ... "".,.. br,(I~ lor Srrv· iCl.:'men .. nil Tech· nieiOin" , (pui"kh' aI'" a... .... cur;IIC!'I)' mt!allUreOf c:"apal.'i t)· uf p;l1Wf. Inka. .1C"<"trolyt .... . Oon_1 air COt "I • ." ...... from , ...... " mld . lH5tlmf,l . l ·bi_ llI · :-H\lnll'lIl ill, l i" llh"lt II)' 1I11l"W1" .. f a ",i:oWai Il").t.!" lulA- tiM" 11U,\",.r fac'to, ul etl'f"tfolYlir conclrn.-rc. AI,.. h ...... many utht" u ..... .,. "'Ieh :1.<4 continuity Dlt'"IIl.T or "lk'CL: u~t 00 II .... fl'OC'tiv .. cornlf'rI",'"

~\'~i:::t~;., k~~,,:,~hSi~:'3/;'!\\~~( !;:-t\!r. I·.;~~ tulJl'tl (12:\7 and 6.\F6G) . Fo, liS \·olt.. ... 60

g4~l ~~~ ~lli : ~vt.. j II..... 511.64

ACCURATE CAPACITOR DECADES

~~~t!~,,'::.ur~~c:; ;'~~:j~il::'I~V~t~~r!'.'e:.nl'l~:~ (i:c)'\-~tr)c~2'i!, 'v' AC r .. tin" . ~I .. y I.' ,1 .... 1 iudivi.lually or in .roup" of twuor Ihrl'l.·d ..... ·a!1.':" . ThO!"Y .. II in~,orpurut.· h it.: h-':IU~lilY .-apaeltor "lanrial'd,... (':":h df:('3dt' I .. furni .. I~1 with all " ''("'"lIrat .. ('21iI.ratillll ('han Io(h'i n~ l. ....... 't. c.:al~,·i'y \'a!Ul'" fur all ,.:alt· 1TI""k iuJ: ". l·xlt"1 ,.lil1t.: u ..... '0 moft ltn!Ci __ IIIl-""un::meQb . Cavacit y Wlc'r:;u:M.~ i" withiu ;:5%. :\ Vt'J"~C!' .. hp" . WI .• of Ib!t. StoClIII No, 84 - 4 52 . 8 4 -45 3 . 8 4-4 5 4 .

MOd.1 Range. In Mfd . ('UA· 5 .OUU I to .Ul l 111M . i ll OOUI mM . atf'lP.t. <.:1,..·$ HI ltl I I ,n{d . in .01 mM. "'t'"PI. CUC-5 1.0 to 10 _fd. ia 1.0 IZlld . :1('",".

10 FOR COM P LET E IN DE X 5 E EPA G E 96

TRIPLETT PRECISION PANEL METERS A very popular line of accurate and fully dependable mctent. offererl in a variet)· of sizes and rallK('5. DC meters have ruKh.'t!'f1 U' Ar!K>nv ;u movement, fully prott"Ct.cd aKain .;t vibration., and aCCUr.1t~ ""thin 2%. PoUshed jc,"-eUed bcaring~ ~t In adjustable screws.

Dial acales finishrd in white ~nl1mel ",;th easily read sca!['s in hlack. Zero adjusting screw ao~blc (rom front o f meters. Bakelite Ca!leS. Av. "hpil. , ... t., l'h Ibs. M.t.n ar. awall a ble

:~lle:~~'&~~dte~~2~~" '.r c ombat un

J21·221 D C 331-231 AC

DC MILLIAMMETER5 321 327.\ EACH

~·· I " ~:~O ' '~~~D EACH 66-100 """G6-"i2O 55.04 54.16 66-101 6& ... 121

0-1.5 ~I~ GG:"iD2 56-122 0-5 66-152 66-172 GG-IOI "-123 0-10 65-153 66-173 66-1N 56-12" 0-15 66-154 66-17" GG-iDS GG:i25 Q:25 G6-155 ~ 66-106 66-126

54.16 0-50 66-156 66-17&

53.23 ~ 66-127 0-1 00 6&_157 66-1n 66-121 0-150 "iG-"iS8 G6-i7I

G6-l(t, GG-ln 0-200 66.159 G6-ln G6-UI 66-UO 0-250 ,,-uo 66-110 "-1i1 66 . 1l1 O-JOO "-1G1 GG:lil 65-112 66-132 O-!iOO GG-I62 GG-112 65.1ll 65-llJ 0-750 GG-I63 65-Ul

AC VOLTMETERS -;1;;17'1 ""'-1~1~7":A~-E~ACH--l""VoltaJ 2U 2314 EACH ~ "-221 ---- 0-10 " -251 """'i&-271 ----66-202 "-122 $4 16 0-15 "-252 "-272 13 23 ii=203 " - 221 • 0:251 "-251 " - 27! • "-204 " -U. 0-50 Sl-2s.t 1&-27.

~:~ H:~~ S~:g: 8:M8 lfflf ttm 5~:U "~ --..:na ~ 0:5001 H-:ni"" ,WH" ~ Triple" melen ate available only under priorities In the AI.. group. For fastel' lervlce pl~le Include highest pOllible rating when ordering.

POCKET TEST INSTRUMENTS

VOLT.OHM~ETERS

FJI. A. MODEL 211 SIMI'LEX. Sc-aIe il!J marked 0.3. 0.30. 0-300 \"Dlu DC. and 0.10.000 ohms. AttractivelY finhhed black bakeli&.c calle. 11,.i"u'AI"3'AI". Two inch dial. lIa" pin jack." fOI" quiCk !l("lection of dMllrreJ !W:ale. SelfOOIltained baUeri("'9 included. With JO-inch polanud t_t I'-"D.d~ and iD!ltructions. Rua~ly

~~~t~h~'Ns:'f~: .\~t:: .1. ~~' •••.•• S3. 19 FII. B. MODEL 10_N_300. 0.300 V . D C and 0.10.000 ohm!! . 2" dial. Rana:t'1I *"Iec:t.ed by m("an!! of jack.~ and a pluf' Ilard\\-ood callC.

;:i,~: 2~:~Y~"4X" ~~(~~rui'~i::~~~edV~~ c:.'!5~~&:~iI~·E'r~ :· . I .. I~: ........ . 52.49 412 VOLT·OHM.MILLIAMMETER

~i~k::!:: O?Ji~~a~I~~'AC"!fj~ ~~~ ohma ~lU.OOO ohm:!. and 0-45 MA. AC·OC. Jack.a provide ea.ay raDJ..'t' IIClection. Black hard .. wood r.t. .... . h:4xl ~". ~ batteriM and t_t lrad:o!. Rd~~l1y con!ltrllC'ted to withstand hard UIl;lP'. \\ t .. 1 lb. 8"_306. NET. . .. 54.95

421 PRECISION TYPE V.O.M. A hi£hly aenJro:ne. compact lill:ht w .. h:ht IJUltrume.nt at a vrry mod· erate price. All M<'"aiM caljbrat~ to within 2%. RanKf"!li: AC·DC volt,.. 0-7.S·1~()"750; nc mill, ()..7.5~i5; RNilitancr. ()..5.~SO.-000 ohm". ScaI(". dc.iRnro for fa."t tol5Y n-ading. Black plastic pant'l: blark...n-ackle m .. tal calW". Siz(". ~~~%x2 %'" With.Sbatt("ry. Wt ..

84-308. NET .... ... ... .... 2.7.75

CONTINENTAL CARBON TYPE A PRECISION RESISTORS

Pn!ciAion on~watt rarbon r~!ltora. hnPTl'Rnated. and herm~tkall)' tw'aled In .la!Ia. For

~:!~ ~~~~ I"C:lltll~:~(it~u:~~~ev:" 'd"! dr-SPECIFY VALUES DESIRED

Ohm. Ohm. Ohm.- Ohm. Ohm. ---.00 .4-150 lOOiiO'" ~ 400000

200 .4950 13500 8SOOO 450000 400 5000 15000 90000 490000 500 5500 20000 100000 500000

1000 .5950 25000 150000 600000 ·1450 .7450 30000 200000 1 SOOOO 2000 8500 40000 240000 800000

-2950 ~950 50000 250000 900000 3500 ~50 60000 JOOOOO 1000000 4000

HARDWOOD INSTRUMENT CASES

<>Pf'n-face hardwood C:l~ for hou:oina: mete'rti. t€"9t t'CIui~ mt'n~ ("tc. I~ane'l !,be. 4!.1:J:S-i ~;J:h.J:·'.i~~':;b~I~~~·aJ!!.'!~ l...es." panel. Sbpg. wt., 1 Yz 1M.

.............. ............... 98. 68-21.1 . Stun:1ily built walnut·finlshfll hard-

:'~("(j it~~~~nl 8~io- ~~1. f(k .. r~\r.li·o~r; 8'hx4V,". ComP3ft. ea~ly portable. f'Quipped \\ith strong leathrr carT'Yin£ handle and rubbc.-r

~:r~J~j·I~.tI"Nltt.~I~~~ . ~~i.t:. S 1 .91

AC AMMETERS

TRIPLETT '.INCH FOUNDATION KIT DC lI("alp!! rrad: 0-10.50. 150.1.000 V. at 25.000 ohm" per \-'"olt; 0-50.250 microamper_i 0-1-1()..50.

227A-327 A DC 237.-\-337 A A C

M&-2~~oo:?Coh~~~}o. mf"gohmll. AC k'3le ~dll 0.10..so-250.I.(XJO \ . at t.OOO ohms per

;'~t~:b~~Ti~:Elof2G~ 1~!ltT . .. 11 9.76 66-505. E ... ntl.1 P.rts Kit fo r building romplete AC-DC Volt-Ohm-Milliammetl..'t' from 66-500 metel" abo\'e. \Vith metal cabi-

~:. \1~~("a,:[·T~~ .. ~i~~~~~II:. $ 12.05 COPPER·OXIDE RECTIFIERS

5 lolA. CAPACITY Miniature type . COnVf!1"tA DC mrte'N drawin. less than 5 mao to AC in'ltrumrftLII. V."J:I~"x

iI;--,g:l';;. ~~l~~ . 52. .59 20 lolA. CAPACITY

'1" round . 1 v," long. ConvM'tl!l DC metl'"Tl' drawing not ov .. r

~OB~Oj1~~E·T .. .. 51.95

TYPE "101" Miniature {ull-wa"e n"C'tificr"'" fOI" convM"tlnJf DC fDl"ten fOI" -. AC UR. Input 10 voIla RMS:

':;Uj~ot .. ~:n~:T~:. 52.06 68-0"2 . Tyat. "H". Half-wave rec:t.lfic"oT. ] nput.5 "ohs H ~1 S: output • .10 rna. DlameteT'. !.1:- ; oVl"rall length. u"". With 6-32 mtg.

NEey· .. ~~~ . ~~ . ~('.a.~s:. ~I~: . ~~:' .. 6 .. ~Z: . 88c ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL. 11

READRITE POCKET VOLT·OHM.MILLIAMETERS

739

MODEL 739 AC-DC Th~ MOtt~t 739 III a pDC"k.·t-t)"pc ,"oh-ollmmilliamhlrH'f" with \ C and DC rau)!,-"". I til .... .,. a pn..-i .ion Tripi.rn 3·iOC"h tlQuart' .. Rt.-d Dot·, I .if~illic :,:u:uanlt-"6I1 nu.ott·r. :o.lo," .. nu"nt ha. ..

~\·oa~~hi~~~~~.rct7~B!~i.50~r~~:~ar~~ ... \\~'~~ l'CflIIi ti,,-ityor I.UOO ohm» PLY "olt: 0-50001111111

~hh~~~''J~)O~bOO1~~:~:",?~_~:-; ci~~~i:)~ n I 5 · 15 · I!'O ma. DC: ~I S· I.'\O·75o..I.500 volt.. .. t\C. Eu.-rnal battet1(.,. mity be u~ .. t for hi$:hM' n.,u .. tulI~ m~a.ou~m(>DtL Moldt-d c-a. ... ; JH& a: 51,4 :I 21,4". With tr,.t lradll, alligator

~'~~7"81~~tF{: 5 , ... ... s 1 0.67 MODEL 73B DC

:\ pocket Yolt-ohm-miUiamme1.S for DC voltage. CII"ent. and rl.,.i$Uln~ mC'a. .. ur~mentJl. U'_ a j'" Triplctt ·· Rt-.. I Dot" Lif~t,lme nal'antl"l'd m~,",. Ilt~b: 0..15-150-150-1.500 volt" DC at I.non ohmll per VOII: 0-1.5-15-150 rna. ue: ()-soo-snu.oou ohm!!. ("O('kct "jz(" molded black C'a!W"; l~- S 5'..i- :I 2~". Sih't"r and bI3r\: pant."'1. \\ith t('"llt I,· ... ,,,. al1iJ:ator ("iii ....

in~.':g:~Y N~';J~~ · .wt.::~ .11o~_ ... . S8 .08

READRITE PANEL METERS MODEL 55 MODEL 95

FlTi .. -ient, rUJ,llwdly roo .. tru.·teetl 3n,1 low· 11...,..- ill ao imIM,rl!lRl af1dilioD pri ....... t. "«ura.·y ,,!thin .s, ,;,~. Ix.: ru.·t .. ·r .. til the- '''I.ular k,-a.lri,,· lirk".

i~~~~~=:,;:'i:;,:.'h!iI·!~.~ ~:.·y-~~!ii~= :~i~~-ulr:;;·::t I::I"'-.~';- 'h~~ :~i!:!: \\ hlllr" dial anti Did.:t"I·lini!lh n1.C!'tal .. hrll. l r'l(Jm tI,·OIU" .. , rali ... "" wl,,-n- it {"lith11' ill.-!ucl .... 1 to hulrl ID~t"r lh:ht I" iOIl.Ht' '1 i.-•• 1 , .. " ..... lriJ,Ch

::::.il~"fl",I~,":~~r •• fSt~=:~I~~:.~)~~~m!::~l ~~d I:~~";:!I 'i~ .. 1~I"i.la("l- ll'la' ~I~'''~~ hnok - III ' 2'4~ fliamrlr-r rilll. For out"iclr rani!' I" .. 1 ""lllar. ' ':L-''. '-.-ry

~~o~_ :~\~!~.?;!:!~h~~.i~~\~~i~~,t ~~nl~ rio" ~~~!r~~';~2~~'!:: .. ~'~~~n~ ~I~;:

AC VOLTMETERS· AC MILLIAMMETERS·

88c

MODEL 5 5 MOOL L 95 V~ No , - [..ch N;, [Jleh

-0-4 n- l 70 st.-n 51-300 Sl.O] C~6 67-271t 1.n 51-301 2.0] 0-10 67- 27 ~ 1.n 67-]02 2.0]

~J~O :t~n: tn:::~~~ ~:~: 0-.U)() G7 -275- ).S' 67- 305 I .U 0·600 '1-27" 4.20 67-)06 4 . 44 (~i50 61 - 277 5.0] 61-307 5.26

()'~ IIIJ '~71.!. 2.9161- 108 1.15

P'LUC· IN LINE TYPE

~IS067-210 2.U

MOO[L 156 --MO O[L 95

o ~;~ 61~;~0 1 E.ch ~~;io E. eh

:: ~~ :::~~~ , S1.7t :~ :~:~ StU ~j~.g I :::~~t :::~:: I

AC AMMETERS· M OOE L 55 MOO E L95

Amp~ . No~ E-;7h No . E. ;h

~\ I ~::n~ $1 79 ~ g:~ ~ ~ $2 -;; 0- 10 67 - 32 ) 51 · 1]] sT:2i

_ 1.,2.! 65A FLANGE RING

0-5 67-3221 • ' 67 . ]]21 .

11-5U 151-324 2"'i~t '1: ]]4 ""'""2:ii . Oo ubl --'8n. repulsi on iY p~

88c A .,urd)· ftanR:(" rihie for U!'I! "ith uny ~IOfI.·1 .1Ii~ k(,,:ldn'~ mt"lCl" "hl"Ft;" 3 11anlo.'" mot.Jnl i" prt"fPrTrtl. Meters are avoilable only on \\ ifh- Itall~ l·. 2Y .. - o.Iia. T~lc.oploolM.- priority. P leo .. Include y o .... ,

........-:s3 I. 71 ~7·~J,;.3~'~~ '· NET 12, pt iority wilh your o rdef.

~========:! POCKET DC VOLT·OHMMETER

Rmriritr 510 POl"i:l't·»iz~ Chl'lft" for DC ,-olt~ and rt"l'li"lanl. ... lC'!lOlinJ,:. U_~ :l ooqt.JQr~ RC"aIdrilr m~Il.-r with f,,11 0,."11 dial. W.c3cl,. O-.WlO \ ". lIe. and ClIO.OUO uhmlll. \VOOII l.""a!l('.

2~" 1I 2~· :I r . Furo,,,hn1 with ' .... l·ll·ad" 311.1 1If"1f"''Onlaiol .. 1 j "olt hall"ry (or ohmrnl"'t"r cin-uh. ~'tlW:.\\"I.. till!' 84- 70 6 . NET ...

RESISTANCE WIRE ON HANDY SPOOLS

IIIKh-Rr:ulr .1Iloy win' for u .... · in ('OI~lrl1ct.in~ ~tra-l'Cnl4iti,'t.' I • .,..,t 3PlJaralu". mt·tf"t"'!!;. t·I.~. Slrt"n',.rott·." .. ,. "pool pl"('~l-" wir. · from r",,'(·linJ.: or l.alll:.linjl:. Convt"Die"l. :<m3l1 'luantil.i'"!I aurl wid.- "",ict~mcct. ull 1II-':o.Is_ Shp\:. wt... S IN . • per 1'11»""' 1.

W l r. Ohms I SA RE __ D_ S.£.. _

5:1-". ' P~;:~.I 49~;'OO! f" ~~' 4 9~;-30 ~ :. 16 .01.118 49·701 .~R\ 49.731 1 21 18 , 11M 49.7021 46 49 - 732 29 2U . 1850 49 · 703 1'1 49 · 733 40 22 .29·U 4 9 · 704 126 49 - 734 57 24 .46i8 49 · 705 190 49 · 735 19

~~ 1 : :~8 :; :~g~ iU :;:~~; l l ~ JO 1879 49 - 7 08 $NJ 49. 73811.J4 J2 2 9QO 49 - 709 76..f, 49 · 739 1S.1Ii _1-1 4 H6 49 - 710 1f)Q2 49 · 740,1.0(0 36 7 . 560 49-711 14"1 4 9 - 741 ,208 38 1202 4 9 - 712 IXXI 49- 742 2.i1 40 Ie, II 49 - 71 3 2.'H~ 49.74~ 1261

~~~ ~ .~~ ~_~~ .. _ ................... 39,

RESISTANCE METER

MODEL SOl (i) Dirl"'C:-t. rl"a.diuJ.:: 0'10.000 _ oblll~. 0--1'1) '·olu. M~d"U~ e:.:...o..... rt."!IIi"t.a.ncr alwi chc-cl.:." cont.In' ,- 7. uit.y in radio and .·In."''UIt-al _ I"irc:-uillt. Requir~. J "mall ..

~a; ~li~~~~[T ~002 ' 97 ,

UNWIRED UNIVERSAL ADAPTERS

Fit'!!; alnlO!<I "\'",Y n ... ·fl. T"~ lOP .-un!d"(III1 ui " !ltandarll hakrlillr" III)O.·k t. An)- lOP and allY bOllOio " 'i lll 61-5i5 or 61-Sib ,,111·11 \\;11 maL:,· Ih~ arlapl"r yo .. no:, .. 1. Tlu.· :ulupl", ~lu'l1 ill bra ...... fmi"IIt'<1 in bJadt. It ill 1 'It · lOll". \ VI .. 6 01..

SOCKET (Top) 40- 054_ -I lIul .... . 40- 055_ 51101t ... , 40- 056 . 6l1oll"!l. 40- 057 _ 15. _ 40 · 058. 8 Octal 4 0 - 060 . Loklal

}

E\CH

... 6 'jc

61 · 5 56 . P'or 1I)'lrun Banl3IU Jr. 61 · 557 . For RCA ~Iioiat.u~ .

PLUG (Bottom) 61 - 570_ 4 Proo!.l . 61 - 571 . 51·ruul( . 61 - 572. 6l'ronx _ 61 - 573. is. 61 -5 74. 8 Ot-Ial.

.Be I Oe 15e 15e

11 EACH

6~ c .Be

61-575 . Adapll"T ~ ... II , _9C 61 - 576_ Sam" a:< a.bo~ bUI "';lh !lidt' hol~ {or briuJ:.inl: out I~d" .. _. 1 2C

12 MATERIALS, BOOKS AND TOOLS FOR RADIO TRAINING

BATTERIES • PACKS • ACCESSORIES BURGESS STANDARD

DRY BATTERIES ALLIED'. Mock of Batterlell i!'l alway~ fresh. 3j1,.<lurinlo: )'ou of full · ,atoo 'f"fvitt. BurW'~ quality ml'1an.<I 31~lute d~ndability. Ell. planation of trrmina l:!: S.C._pring diPtl; S.T.-sc.:u.·w lcrminaJlI.

&.cau.. .ome botton.. may "ot be avallablo without priOl'ity, please tubm it priority rati"9 whene.,., pouibk!,

s~c;,~· 1 BUN:~" IT ... mln •• I!VoIU I S~~~' I Sl: .. I E'l~TH STANDARD "S" SAnERIES

80-5011 21 lOBS<: I S.C. 1 45 15 11%x8",s.I,1' 152.23 10-505 I tOJ08SC I S.C. I 4S \J 17%1l8x4' 1 2.05 10· 071 lJ08SC , S.C . I 4S 9V, 1 n'l~8x2%' 1 1.34 ilNOi I SJOIS I S.T. I 45 4 15 ~.s4Ji..x.n_· I 1.16

STANDARD "C" SAnERIES 10-510,4156 S.T. I 22Ya I l~ 13J:3Y..l)i." liO.64 10·S12IS156SC S.C. I 22~1 2 13%dV.:&l~6· I . 72 53-012 1 2l7OSC S.C. I .~I tYa 13\-iJ:·h;t%· I . 30 la-SUI 55'-0 S.T. I 7Y..1 I 13'nx4Ji~· I . 48 IO-SIS I 5360 S. T. I "~I Ya IJd~JiI~. I . 31

SPECIAL·PURPOSE SA nERI ES

10-5111 XlOFL I Wire le3dll I 45 I I 12')izxIY.x41~' I 1.75 10-5201 AlOBP I S.T. I 45 I 2Yz 1'l1.x2%.J'~· I 1.2 7 8Q-S21 IW58P I S.T. 1 7~1 ~ 121~lCV.dY.· 1 . 70 ·80 .. 52.1 ZlONX I S.T. 145 1 t~ IlxI7Adli,· I 1.50 80-U5 1 Zl081~ I s. T . I 4S I 1 'IS: 13'.4.2~xJ~· I 1.35 $].016 1 F4BP 1 S.T. I~, 121~'X21J.i.dl~·1 .40 53·017 1 2F2t1 I So T. I 1 I t 'h 12'/.x2V.d~" 1 . 40 5)-011 1 nBP I s. T. I 1 I I ,2'/I.'M<.4li<· I . 34 5J·on l A1SST I s.c. I 12\-\ I 2 I2JiaX,lJ}iad'9\a- I .68

IGNITION, LANTERN AND TELEPHONE IAnERl1S --- -I$tock lIur .... No. I~ ~ FOH

53·024 OFH 5 3-027 OFlH 53-025 OFOH 53 .. 033 mr 53 ... 034

Walch-cole Iypo te ... n lot "8" 8af.. tori •• , Dry Ceill, Slareg. 80"e,lel, etc. Du,abl. and O((utG". Averago Ih". wf~ 1 lb.

-:c.' NET Valli 5 1&. EACH -6-

B1 H:: 2r~xl~f SO.3, l~ :~ J 11>0. ~ :~:~s~ 6 711>0. 2 lx8V.x6}i- ~ .4 9 10 I be. .1~ 3 311>0. ~%~~?!tW .6

STERLING BATTERY TESTERS FOR STANDARD BAnERIES

Available iD 4 tYJ)f'1l li l"ltrd. For teetJna: general

;u~~;~~::~t~~~r~D~~i~~~~· .. . .. 7 3c 78-021.. 0-35 Amps. For Dry Cells .•. •• 59c 78-022. 0-50Volt~. "0" Tester . ....•.. 59c 78-023. Combination O-lS Amp. and 0-50 Volt!. NET . ••....•...... ... ......•••.. SSc

FOR PORTABLE BAnERIES A.~ abovr. but 10 ran~ more C"OD\'rnient for (X)"abie-radio b3.tterie!l. Dual-co.il ron.'1truc:tJon

7i~~o;':6.'01~o~:s. 0-2 Vol u ...• • S 1.47 78 .. 025.0-100 VoltJI. 0-2 Vol ts ...••.• 1.62 7& .. 026. 0-150 Volt&. 0-2 Volu. ...... 1.62 7 &,,027. 0-150 Volts.. 0-10 Volts .... 1.76

Th. War Production Board hal Rmifed the manufacture of dry bo~ifl to a minimum number of types. Batterle, for "enable rodlo. will nol be made far thlt duration of the war. Dry batteries for farm $ltt$ and fla,hl ight cell' are being praduced 'n Umitttd quonlitre, and will be avallablo without priorities a$ long 0$ .....utation' permit. Ow bo"ery ,toch ore alwoyt ,",~,

KNIGHT PLUG·IN DRY BATTERIES

Only the hillbegt QualitY- lDaterialll ::are

~iDJ~ig~~k~t~K'i!I!~~~~~~7y protected al::ainllt internal .hortll b)' a unIque 8C'aliDg lucthocJ. Th~ batteries arc desiKnoo for a 10nK and lull life. For ma.simum batt"Y value--bu)· Knig ht.

~t1~iC~r~hn~~:b!'r iiru :~r:ht ~t~i~::~;,~~ I~j~,,::-up~~~~ .Plug-In baH_tin do not Include pluga. See plug. 1I ... d b.low.

80 .. 800 1 -Standard I 45 \ 80-801 1-f1ea\'Y-Duty \ 4S I 80-802 \- " 8 " or "c" I 2l~ I

80- 804 INo.6Dry~lll 1~ I

7%lC6d' I 6%x7Y.r,:l4· I 4x2Ya:l2Y.r,· I bJd '.4- I 1 lb.

POPULAR "GENERAL" FLASHLIGHT CELLS

SPECIAL PURPOSE BATTERY PLUGS

* 4Jt "" ® © @ ® ® © FIT POPULAR PLUG·IN TYPE DRY BAnERIES

All are plu I:-In y-No. rig. T, .. O.acrlptlon

54-000 A 279J 2-prong: 6V. " A. " B4-005 A 200 2-prorll( 3V. " A. " 54-001. B 273 t~~: ~~~I~.:J~:'. N£T 54-002 C 120 54 ... 003 D 274 2.prong t I V. "A." EACH 54 ... 004 E M64 4-prong 6740 "A/ B." 54 .. 006 G 2767 j.pronl 6OV. " 8."

Sc 54-007 ...... 2792 i::-~:: ~ ~"v.·:!'A::· 54-008 ..... . M77 54-00 • ...... S70S 4-proD.ll Zenith" Ad: 8 ." 54 · 01.0 ...... 2745 "-prong Philco" A&8 ," 54 ... 011 ..... . 2000 tg~~: m69;?~1s:~'" 54- 01.2 ... ... 2776 54-01.3 ...... 2791 4-prong 6/ 90 .. AlB."

ALLIED RADIO CORPORATION, 833 W . JACKSON BLVD. , CHICAGO, ILL. 13

POPULAR ATR RADIO INVERTERS-DC TO AC o.-th"f!nl I to \ 'ott 60 t.Yt"1t' AC 1!k>t1rk' PO"'''"' from 6 or 12 volt l»at· l . 'fi,.,. .. '2 volt . II U vull. or 12tJ volt I>C !O ~·/'It..rIIUl . Thl"!ll: ' nvrt'"trN arc d~"' l/. hl-d e!lpeciaJ1) .. tOt iotrrfl-'n"I)ft'-fl'ft o~ratioh oj AC all·wave n.lt.!' ..... I' \ rly ,ctt·m ... r31110 phoDo,,"raph l'Ulllbinadontt. tMlt "1':1iP'" h lt..,' t. aBiI ,.imilar \lnil>o ironl 1)( ' \·olta.~,· .. in eM,.. bclraltl. troUn .... farlll~ and in UC c1 i .. tricts. PltH.:- in vibr-..Itor ha" V • • ;ocll ,liamcl.CI' CI'ht;tC.."t ~ which ~urC' lonlo: life all.t rl"liable ~rviC'e. F,-atu""" include:

:~i~,~::N~re~:~:~~r ~\.fi~h K.~~~~~h °:i:n~':~('~:r r~\:!· C::i " ha. .. b : ' thull .. .;suriDll quiet prrform3~. Si,rs: KSA 1':.4' ,,8 • .,_ tv."; RHA 7~·:&9~":r6~·. C omplete with COI"d IWd philo: .

RADIO nPE WITH FILTER

5'0'. I Mr". No . T),p. '""'iiO-ii"OO (') R SA SO-OOs. I2 · RSA SO- OO:l: J2- M.SA. 80- 003 .128-RIIA 80-004 1 11U RSA aO-005 IIUA- ttIiA aO-008 II08-RHA 80-007 IIOC- R~ \ .0-008 lIOO-RSA .0-009 22Q..RSA

Input 60 Cycl. ~ _ Wt . . 1-NET ~~~t. ~~~_~ ~2 n~~: Iii. I~ :: $~:::~ S: ~:8~ .12 tu)\'. IOU I~O 16 29.()S 17 . 61 J2 IIUV. lAO 200 Ui -42 .00 24.70

::~ ~:~~: ~~~ i~~ 1~ ~:~t. ~~:~~ 110 1I0V. 35O.~ 2S 49.50 29.1 1 110 1I0/ 220V. 15.) 2.~O 1«1 .17.50 22.05 110/220 1I0/ 220V . 150 250 16 J9.".0 23.23 220 110\'. ISO 250 16 29 . .,5 1 7 . 61

ELECTRONIC CONVERTERS Pwmitl" DC oP'!'f"3-tion of AC appli:\n~. radio~. "1II~llfier .. . te5t

~~~~I~~~':'!;I/~~: ~~~:.:~:(~ ' IO~~: Slu'. ~Y. 11 61,4 x -I'/z ', r X"rpt IIU V, I)'pt" \o\' hil 'h i !l IO~ :'l"% :CfJ' , A \""":\J((' tihpR , \V't •• 15 lb!!..

MALLORY VIBRAI'ACKS

H •• h T)'P.

'"iO-iOO IV f"S-srt 10-101 Vp .. "52t 10-102 VP-5~J 10·103 VP-5S-4 10-10"· VI·.555 1 0-IOC· VP-551t 10-105 VP·G~5b 10-107 VP·FSSI 10-101 VF·22J

TYPE VP Vibrator t yfW' fin'"...,. unitl" for fIOrlahl.- raeliOt<, Iran,... mittrrll, PA IIYI't.m". nc:.. t<}peorat .. from 6 V . 8tor·

~r.o !:~~Ar~';j~~~5i~tm~ r. .';:;6. :,.IJ - r.rlifytn~.

!~:raa'~~~~I;:PI.!i~ '" HI,h Outpul TWp ••

~:5~~.i'S'Or~~ J~-c~~ ofM"ratf'tl on 12 .6 V .. and "P-F558 on 12 V. Both .uprly 100 mil. AWrag1! aJ lIPrMrtf: WI . 10 I~.

Output Volua. lEAC H 125.150-17,S..200- SlQ.l i 225·250-27S-JOO 12.35 125-150-17S·2110 1O.n 22S-250-275 ·JOO 12 .'7 300 . . ... 25 .32 400... . .. . ... 25.32 22.1Ii-2S0-27S· ,lf)() 12 .'7 225-250-27S--JOO 1l.U Sin.lr U nit Flit" 5.0'

MALLORY FILTERED TYI'E VIBRAI'ACK

C omplf't. " 8" po~ unit fOf" lUlyrt«-tronic dC\'icr opr-ratinK 250 V . DC with 60 rna. drain; f'O"'ft'ftI: (rolD 6 V. !'Itoraxe' hattny. For auto. marinr and airPI;u.~ broadcat. or "hort- wave receivrn..

IJt'3t for mobile poliC"e ft'ft'i ,'efIJ. !Wo1(-ftr. t.fyina \'ibrap;a('k iI. fully filt4.of'L-d . 7V ..... JI~ .. ..

~'·t\ .. :1s~~~·Tw.,'r;e9v'J:5~. HET .. S 13.23

l7.0~5~ ~~:t::';1~~rCPi'~~I:t:~·:jnFREE

GENUINE G. E. TUNGAR CHARGER

KNIGHT STORAGE BATTERIES lIht 11 e>lltqu:-.llt)· ... tnr:"Rl· h :o.tt.·rl r. .. rnr r :,.lIo e qulpmrnt, lo\\'-\"ol~ Iltchtlnrc "yMtcottu . rtc, ObI)' fiw' lIt rnat .. rial. nrr u_i . \V1ni: -nut cilU11rnn trrmhml , ..... . 9fI,.OtO I" hiral for rarm I h: ht i nl(

r,1rt.nta. Shl"llMt I>y ""litht or "lIp'''-.

2 VOLT BATT£RIES- --

=5t:-:"=."",N"0-·";IPf.t··I~I~I~ .s-ooo f J 115 16 S3.25 .... 001 21 ISO :u 4 .. 35

6 VOLT BATTERIES ".~.,"."'0,"O~5"""1=-'1:';·'::":;'1 :"":;95---:- "0 -1-----ss:9'5 9.-00a I S I I I .fl 7.50 9.-010 21 1.'\0 .'i8 10.90

LEADER .... :=-iiiiiii::'?!iil ..... _ .. HYDROMETER

MALLORY RECTIFIERS

For battf"rY dlora."''' an.1 lMlO!ttrrll. "1110 Idl' al pow·

:=~~r~~i~~tt:lnr~~ rhlrwa. ,...laYlil. etr. UrnV'. mot tl:. A\'nagc ""t.. JIb!.

:1~C~~IOFIJ.q;'. :r~i~~~11'2ln:~12~~;: ~~V: .. XI.2: . ~1. 2 •. J.C. ~'~: .. S3.46

~~:~.:J~<?f.~~':x.~:~.02 ~~~~J~~~Bf~~tt'::'B;.~f. .S5.15 ~~! H4(;1~2U1~It:i:T~ ... s 3.34

37·024. Mallory Technical Bulletin containing ,.ectW., dota anddrcu;hl •• nt FREE

JANETTE DC TO AC ROTARY CONVERT~RS

WITH BUILT·IN RADIO FILTERS Conft'r1l1 DC to AC. ~mit!t the opf'ration of AC ra.!io :01 ...... "oun.t lIy"trm" or ~'Or'l-

~~}~;::~321~,~,~dli~~,~t~~~i~ I ~s~oirr~ lint'l'l. COJnP~, dynamica1ly halaDC'ftI. rUR:~f"" Iy "~h:n .... 1. 3n.1 built for ton~ I ifc.-. Efficirnt tllt.rr _ ,Hln"lI quirt r3l.1I0 rl'Ceflt.loo.

115 VOLT DC TO 110 V. 60 CYCLE AC

Stook c:.~~. ~:~ Shp, . NET No. w.tt. Amps. Wt . EACH

:g:g~~ :TIf t: 1: n:: S~~: I~ 80·052 llS J .O 401"". 38.07

:g:g~: ~ ::~ ~~U:: ~g:g~ :g:g;: t~ tf:ri I~~ n:: 1 fV:}~

80-081 t.'in 8.5 3HI~. 32.63

32 VOLT DC TO 110 V. 60 CYCLE AC

80.0;;0 1 " 0 1 6.5 1 Je 110.· 1 529.69

80-062 21.lli I1 .S -I01I1l!l. 38.07 80-063 ~I IS." fII U.... 46.01 SO- 064 SOO 18.0 7llto!,. 60.56

w. C . n SupplW ronVt-rttTli witlt 6 volt DC input and wit h \':u-iou~ oUlIJu l watuu:_t" ra t inRIIo Send u~ your order apccifyln", rl"'1u ln:IU~t-"-.

HOMCHARGER 5·] AMP. BOOSTER

\\111 kf'eP r31110 an.1 auto balt"rll'" fully char~1. Rt"Quir..:1 panicularly for "ft'1l('nt 11 01)' \ ' ;11' loaumt'l'l

~~itcJtIO '::;:;:3i":'~I:!)'m~U:; ~1ft'1rlC":lt (t~d N'tl in tI~ motirt"1I ("ilI' . M a) ' be- lUIIrd iD thl' home, .araR:~. or mountrd under hood of canon Itteerinlo! ~t \~ith mouDting l.oracL:et MUP-

fr5\· .. F~:;~;:nAC~ No radio iDu:rl~nce. I.ow oJW'rntln~ COIIt. Size : 11" E 7" 11 -4.%'. SlII)g. \\t.. 8 lbo<,

:~T~.~.~· ... ....... .... ........ S4.8 5 HEAVY.DUTY 10 AMP. CHARGER 10 amp. mOO r l d"",illnPrI for ~:\r:\..,. nr lIf'rvitt "tat ion U'le. \\'i ll 'lu1rkl~ t't"C.'hurllt' any batt'-'ry In prrfect sa(ety du. to thr. automatir tapn-in" f4'atuf'.' . Ila" ml'trr to in.l iC'"atf' rhaJ"lina: ral('. l)elu.r da~h ",,",ptadr. For 11.11i ,·01 ... . 50-60 C')'rl. AC. S izr: 12Y6.9x8Yi:" . Shpo: wt.,

:.s"'~26. NET. .. .. S13.90 MALLORY 6·AMP CHARGER

I rt'rr ill a qualit)· rharFl". COrupal"t . wdl m:w. and .... .. y to u~. Mr1.M' on th~ front p:anrl In,licate ,. \\,11 .. n hal l('ry iot bring pro(W'rl)' rha"I0(("1. Cnp. per'lIulphi,l. dn' djgc I)'PI!" n"('tifi...- . Output. 6 to 4 amlllO. Sprdul O,'l"!"Miz:. tran.!4"orrn,.r pro\'idl"!ll tmuM ..... "" tapr-r ('h3.rt.:.-

1"41 . {)pt-ra.trll U~~~~:4~~~~~~ ~~~rp~ "i~r n~~~ t h",· mal bimrlallir df('uh b,...k8-00 fu!'f'A are

~~~~~~(tlf~~~r,.!~~"i~\!~~'~l1~~~=~ wrinkl('-finljl;ht"lJ C'"3.1Ie. 7!411[-I V,1I[-I~". For liS

.°J; ~O''fO~T~5'5~51~. HET S9.02 14 F' 0 ReO M P LET E IN DE X SEE P AGE 96

SPECIAL INDUSTRIAL EQUIPMENT TRINDL SUPER·INDUSTRIAL ARC WELDERS A compl~te nne of Industrial are wf.'ldera for evrry purllO!'IC. Backed by the manufacturer !I 3U years experience In manufactunng and engineering n"lIl"arcil. the8C weldt'u arc outfltandina in th..-ir ability to function d("~nd3.blY

~~ =~or:~C:!~~t.~vr~r ~frr;i:h~:~ :~i:~ti~~· :!!.~:fJi\~~~per~ti~~ COMPARE THESE TRINDL FEATURES

• Economical to operate. • Scientifically ventilated. • Ouick-starting arc. • ComparfmC'"t for supplies. • Vernier Ole control. • No moving parts to wear. • No magnetic blow. • V~ conservatively rated.

® TYPE 125-125 AMP. MODEL E.prcia1ly d~IDM for fallot. Iilr:ht pruduction and malntrnnnao wnrL: where a lart.:er machine l!l unn('Cessary. A bi. monry·,.avrr for anY large or IImall

~~P~~~~~~t':l~~~I:';l CJ:'~~~I~~ a.:r':' .. t~ u~h~do:r:ch~~"~~t~bl~ and other prrmant'nt locations. An)"one with little or no ('xperirnC'e can learn to olJ(>rate thJ" machine within a "hort prriod of time. Model 125 u!te" com-

r~iI~~)~'~~t;1~~i~~~~~k~t "j!!u=~t~.!:J":!I ~S:;~~~1~;:~~~0~ I~i~~ out InterTuption. Vl'tnh·r-t)·~ arc control allow" accurate cutTe"nt rt"~u lation.

:::t! :~:e~~":~~" di~~i~nh:.t :!:f7of~~;id l::u .. tt'!II!: li;I',ra:820I=~;;' Fully ~ulppM .. l.ith ht"ad"I1it'ld. electrode holdrr. wl!ldina cable-. /.:round

il~~~c~~~ ~~~ei""~·;6c~,.tVJ::-e~~i;:. ~~~9i'ts~\'e1dlng and operatinc

98·080. For 110 V .. 50-" c),cl. "C. :18,:~:;' :~rD2:~ .~ .. ... ~~~~ . ~~~I .•. ~~' ... .. .... .......... S48.04 ® TYPE 160-150 AMP. MODEL © TYPE 260-240 AMP. MODEL @ TYPE 360-350 AMP. MODEL The Model 160 ill a c:ombinatlon w-rlder for opt.'fution rrom both 110 an,1 220 vall ~ t'Yl'le cu~t. It fratUrC'tl the vt'rnier-typr arc rontrol ..... hich maknl Trilldl Super-lndu!!llrial Arc \\'t'lders Il1O ra(Md and unu!lluallY rallY to opt"rate. This machint' ha!l 36 me1nJUc arc ",..-Idina: heat staa:l"!!. ranlo!ing from 10 to 160

The Model 260 featur~ a built-in "Lift Top" c:ompartmftlt for .torina .upplirv. and ac· C'HMXi~. The arc pt'oduced by thi. machine hI unuluall)' .tnble and ill e.~ptionaI1Y e-uy

~~ ~~~~~~1t!6a!-~~t~'~~~~~e~~r~:rc::.

Model 360 ill r'llpeocially dPtdaned for con· tinuou .. production on heavy work. It is tile' lar~t "tandard model In th~ Super. Industrial

~50' al~::::l.;.~6 al~d'l\"t4~~";:bl~a:r~~r~%~ ~ ~~ The cutTe"nt outPut of th~ Modd 260 ramll'1l

~:S':. l~t~~!~.~~':~J1:'!I t:" !~~r~~. W;!1~::t \\-eldina: rod. Modd 360 ill the fi""t unit available for thoM" ru"h production or ("OnlltruMlon \vrldiua: jobal. 1Ia.." built·in "Lift-Top" ("Om· partmt.'nt ror IIcorinK lIupplif'W anti nN"Nl.~ri~. Anracth'ely hou ... >d in !lturdy eraC'ld~fini!lhed sl~ cabin ... t "it h C:OO\'C'niently locatrd haOlIlC'L Mounted on l'as)"-rollins:; r3!ltor" for port_ abiUty. Vt:·rnit·r . type arc c:ontml prrmiu a('_

i:n{:"':'tr~h~l:: e~a~ ~" a-"dl~::~lerod~ crackle-fini"hed 8t~1 l'Olbinet nOli i!l. moUntffl on C'3>!y. rolllna: ca"t ... rll for portabf~ity. The 1-.lodt'1 160 comNJ rully l"f'Iuippt"d With h~d· flhleld. C'lectrode' holdC'f' ...... rldiru: rablt'. JO'Qund

.tftl crackle-fini.n cabinet \\ith ronvcmicmtly

~~~~ f~:n~rta~?11t:oc::n~ ~~II~;a:;'~r~~ and nil rf'ady to opeTatt' ...... lth headtlhleld. electrode bolder. welding cablt.' •• round cable. ~~It-d~'r:i ':':!:dl~~C~n~Il!~!:~a~b!:i~~!I~~::

tions. Each inll'irument i .. rl'ally for irutant OfM'ration imml"diatelY 011 nrri'·nl. No previOUs ('xprrirnC'C' h n~l"d . 1 nllt ruct ion!! furnished a re in thrm~h'fiI \PtIuh-alt"nt to a '-'ask IlJ'C wf'ldini. cour .. manual. Size only 26" • 18" • 18". Shlpp ina: weh:ht. 140 IbL

:~~. ~::~1:ln~-e~~~~~u~n~~d ~;tn~~~'i=!~~~ prrirn<'l" ill n~ed by anyont> who I,. to o~rate thl" \~Ider. The in!ltructlon!ll rurnlshffl are in them8('lv~ equivalent to a ballic weldlnij rour~ manual. SiZe' or unit 34".25'"x2<Y. For 220 V. 50-60 cyd~. Shp... wt.. 265 II~.

~~~ f~th;~~':;I~.;.dd a~r~:!:I; t'!! ~:~!: ..... ith IIl·adt4hi('lli. el«'lrode hold,·r. weldln~ cable. Kround cahlt'. wf'ldinR mdt4. "C" clamp.

~:T~.60: .... ............... '86.24 ~:To.6.1. . .. '142.10

T~~~~~~~II~i:-~~irul(r~~t:r:~i:'~lii~'~I~~~tit~n~ ~~:f~i:c,~uSi~;K~~ri.~7;jl~~~0'" For 220

~:T~62. . .... " -220.50

TRINDL SPEEDWELD RODS HiKh tade. drrp ~nctratinK •. mild Itt'O:'l •• hieldt:'d art WC'ldln~ elec-o

~~~~C'~.:ldlri'::u~cbl~:.k:!.;~rU:h!ot~ea: ~!;::::;.t 0 pow-

Stock No .

AmP.r'" Prl c •• P.r Pound

Siz. ~l Me.. ~nl'!,~~ \2:g ~:I . ffi2!: ~~~-h.. I 2' 30 80 28e 23e "Ii4e l'o~14' 70 no 2~e 18e .1 I e ~::: ~~g l~ ~8~ l g~ :1S I~

PIONEER "LIGHTWEIGHT" GAS· ELECTRIC PLANTS 400 WATT AC-l00 WATT DC

PiOneer Lia:htwC'iKht Cas~Electrlc plants arE" rtlpecially dl"S.ianl!'d to mt"ct thC' incnUna demand for readily po"_ ablC'. yet dt>prndllblC' and powt'rful Ihr:ht.in" planu a.nd battC'ry chllrJrenl ror 6cld wor!.:: . ModC'J BLA--6. iliulItr-ated at thC' It'lt. IUPpliC'.!I 1 to ,,·oll •. 6OcyC'll"ll. AC al400 watts oootinuout'lly (450 watt!! intrtmhtC'ntly) or 100 wattll DC for dlar"inK 6-"'olt storage IJilttmC't!. Sim:lC' (")'llndrr. air-cooJrd.

t:'t!~'~~~r::~ti~~hillrocfi-ful!l~~~tI:;:; hour at r3.trd loar1. \\'elR~B ,obly 17 POUndll. Size.- OVt'T"8l1. 18l1:- lonlll

nlbbPl' rDOUDtlng ft'et. ShpR:. wt .. :::i~~ . , .. ide. and I"V~ hh:h . Ha..~ 9.·504. M.~.I BL .. • •. NET . ...... . ........... 77.55 •• -5:1.2. M.d.1 BLC-12. Same- as M()(lt'"I BL.o\-6 .. bo~. t-scx-pt de-li\'f'NI1.Sl'OIt!l DC at 200 watt !I. or 15\'0It" DCat.lOOwntt!l. Bothrnrinp

~ fI4%~n~t=h~'t"Vd~:I~~~ gvlr!~l l~::·fol:rV:~bl~·in~~·n~~g \\i~: ~1.~~~~~~ .C'.I~.~~ .• ~~rt.i~~: .~I.~I~~~. ~v.~~~~'. ~~. I.~:. S67 .65 •• -8:1.3. Model aLe-til. Same a ,. M odel B[A..12 above. l"li:C"'C"pt

d,.lh· .. r" 115 "ohM I>CnmlinuoU!lduty at 400wntu. Weigh!ll7S lb • . Si2e.

~tf. 'ona •. ~~I.~~ .~~ • • 1. ~~". ~~~'. ~~.~'. ~" . ~~ .1~~ .. . • 69.7 5

AUDELS' WELDER'S GUIDE Tbe purpoM' of thl!l boo!.:: i!l to prncent not only the fundllmt'lltal! or ""t!lding operailont, but abo the

~:~pr~:.!t~~~"!:1:'7 ~~~\:,y~:t; a::.~.::~~i:,i Information r,pquired by lhe ml"'Chanlc who wants to b«omC' a master of wC'ldina:. Quick rererence Indes: iruJtantly 100'atlN alliSwn to an)o' problt'm. A tC'Xl (Of homl' .tudy. A manu III fOT OQ·thC'-job use. ·U2 plI~. IIIu.trated. SIze. 5-.6",-.

~n7U~s~:. "No:~~I.~ ......... ... ......... 98c kNIGHT WINDCHARGER

WITH 10·FOOT TOWER Gt't FREE POWER hum tht- wind \\;th thla de-luxe HY-Tower Chafl~rt. COlItA nothlnS!': to

~~~~td~i;~~r. ~h!~~? 6~o~!K: battt'riH to !lupply curr('nt for radios. lia:htIna: 1!Irf'\.·ltt. paWN. C'te. Cart'lully e.-nJtinet"T'OO featunos aN!: oomple1t-ly w('atherproofed. balanced propl'lll'r; automatic tilt-back rt>K"-

~~tnh ~lp~t!::!{n:tl~n;ra~\~Ttu';·~:~:IC'e~~kl:, ~lfe:~~~~lbrt.~'t~o,=r:i~~~~ ~~i~d:~\(;~ sturdy t o..root all'fltrt'l tower and aC'"C('!'lHOri~

~~~~5'"o~"',f~'t 7JI'~': .... .. '21.75

kNIGHT POWER PACk Knight paWN pack dHirned for etiminadnlf batterit'1l and to supply DC pow", for 1!IC'r"il:e ahOltS and C'xprrim("lItol la~ oratories. Dellvt'n 100 \"olh of fihf"l'f'd DC at 65 ma .• with intl"rm('dlat~ tar>!' of 22.S. 90. lind lKO vol"'; alllO 6.3 "'0118

~a:~u~~~:~etifl~I)",;atth I~d':.=input. Mounted on ~turdy IIlM c-h;u.. ... I,.. bl3l'k C'Ta("kl~finlll;hed O\·M"uli. ScTc-w·ty~ It:'Tminal lup pM""mit

~?I~k).W~t~tl:rd~!d :~:~~1:~9 ~r: ~11~~~:t~~'::m (~~ it&: ~~-vr~o~ ~Ctr. ~.~ .~\~~ ~.u.t~~: .~t.l~~~l.n.~. ~~.~~~l~ •. ~ .I.b~: . &6. 9 5


SPECIAL INDUSTRIAL EQUIPMENT INDUSTRIAL POWER SUPPLIES AND CONVERTERS

ALLIED'S INDUSTRIAL DIVISION ALLIED·S sp.d.II •• d Industrl.' Dlylslon is at the ,*,r\,",~ or all URrIl of Radio and EI~tronic equipment. 11 ha!l attained national ,JronUnt"DC'e a.oc the mOltt efficient. C'eDtralized pr()("Uf'eUll"Dt fIOurrt" IIupplying the vari .. d Radio and Klectronic nf"ft.l~ of indll"'f'Y and the armed forc-. Our E;,:pe(liling Dt-Partmrnl ron!Ci!ChI of Irainl"'d tlPChDical and procurement llpecialislll who know Elrt'lronic rquipmml. who ate in contact with hundred!' of ~llrC"e'.>I of supply. ant.! who can ert wbat you need,--quick.]y and efficirntb' ,

ALLlEO·S stocks Include more th.n 10.000 dlnerent R.dl.

~~~lli~~r~l:i~::rr::: :rJ;urnd'u~ri~1 ~:ru~~:~. T%!~'a~ :~~ rt"st"arcb applicationI'. \"'r c:arry complete "IOC'b of Sound and Intercommunication equipment for ofticr aDd plant DeedS.

ALLIED c.n supp1w everything In R.dlo and Electronics. Srnd in Your ordrr even if item YOU n-.-t i~ oot in our catalok. \,"'r ritber have it in IHock. or loIoill get it in !lhortt~t lJOM..'lible time,

MOTOR GENERATOR POWER SUPPLY DEVICES IIIU8traiion "howM a % KW po\\'t"r .upply drh-en

~r~J!I~:'~~!Ii~~~~ r~.~~Te!~~:~ra~~~ie':: maintenance I'hoJ)cl. Plc: .• with a con\·enient 14 and 28 \"olt DC PQWft ~urt."e for the oJ)M"ation of aircraft radio and electronic rquipment. 0f:t'rat~. from ani: II00r 20 \"olt.

6~\~:~ ~ln~~~~-I~~;:~ eithM" 14 volt!! at 50 ampeT"t"!l o r 28 volt!! at 2f amPt"r~ DC with 95% rf"gulatioh rrom no load to rull load 8rrvice and ",ith a vrry low prrt."r1lt of ripple. Motor it; of repul!l.ion-induction typei .eenM"ator ill compound wound. BrulIhrs are accuratel~ ali(,ncd I!JO that RF interl~nce III held at a~lulr minimum. ALLIED CaD supply any ty~ of W:f"nr-rator or power supply I.:-qwpment You need. Writr or -...ire (or qUotation".

MALLORY GENERAL·UTlLlTY POWER SUPPLIES A hl"a\'Y-duty mobile unit for u~ In labora· torinl or on a~mblY lin~ to (urnil'lJl hi~h_ c=urn-nt DC powrr for building. t~liDJ~ aud rf'pairin" rl«!'Clrical e1juipmt"ot of ;dl t)'p,"!I. ParticuhlJ"ly l!Iuited for C'h("('"kinK ('1('("lri,'al f<)·,.temli aD') c:barginK b.uter1,·s of alm-elft. hu~ and trllck!t--Or where'·("r there i~ a dfttland for 10-16 or 20-32 ,·olt DC. lIa~ variablr ,,·ohnEe output. good rt'1lulallon

~'~'~~r~~i 10~d:ll~::r ~rft~eh:t:~~:!.i~i-;: are arrangrd to deli\'("f" both 12 and 24 vo1t!l f<illlluhan('()u~ly. Quiet operation; no foundalion n'fluirrd: UC contactor pft'vt"nts di,.. ("harkt" of haupry in ~nt of powpr failU" wh.'n unit if< ulK"t'l a.'l a battt!TY ("har...: .. r or in parallt'l ",illl a haurry for l!~"'~ion rl"llula·

~!:ili: ~;I~~ ~o.~ll';~~i~ .~\C i,!~..:,.o I?~

CONSERVATIVELY RATED

!~t~tr::~dilr:::\\:r i~~I~:~o~M~~~~~J wit houl e:u;. .... ""h·e hrat ri!W'. The power tran~ormer 1M of thf" thr~-J>haow. complelely In,,ulat,,,,I. two-\"';nding Inx-. kec1ifiM" rlrmMlh are Mallor~ magnrsium-copper Mul~hide ~pr ,~ilh adequatr handling ~ab)3.ci'Y.

~I~~.~ al:d o:!~~~ ~:tb~~~:n~itDP~'¥~cl~t~r!~id:a!n~;~~fo: inMtant .. ll!C:'tion of thr 12 or 24 "olt OUlput _rvic:r. Thrt"r indrprn,lf"nl 8-1~tioD tap IIwitdH':t make il po"",iblc to adju~t voll~Kr outpUI by

~i~IIet;~ ,~~~~~~tifi:"at!ri:I~~f"A d~~I;~:';-a~e!:~~t';';O~~~d!~ n-.uliml'!c on lht' DC output CUrR'Dt t>rinJ:: IrtIppli",,1. One dry t'1t"l'lmlylic ron,lt"h!lM' and onr radio rI"t'iIU~nt·y nJmlrn~r art" l'OnnrcH·d al"ro~ r:k·1I of th.·lwOft"Cti6er bridgell. Si%c. 18Y~·xJ6Yi"x"6·, Approx. &n. \Vt .• 2$Olbs.

!~01,!~i!:;~ a~~1~~~~~koTl.~ ,~ .. ~~ , ~~ ~~.~:S400.00 :o!01t! ~i ~~ ;:~~~~~~ ~OEt6. ::.~~?~ .~~.~:S500.00 460-\'01t unlta available on lIPl"'riai orde:r. Wtit~. delW:Tibing rt."Quirrmmt~ Allk for FkEE dreulal'. 37-150.

TONE GENERATORS FOR CODE INSTRUCTION

DIRECT READING ""9"" METERS DURO FLOOR.MODEL DRILL PRESS

The tODe ~cratOl' illustrated above- wa .. drIdgned f"Sprcially to providr a con.·nant lone !'Duree for code traimng l'C"hools ..... hrft a large numbrr of hf"ariphonf'S art" U!lt"(J. Thi. genrrator

~f:t::",~~I~:O:::: a~dJ1r~~::r/~o-;~~· 4rt. cyde. RinR'lr-pha!W tone of 2 kilowatts at 115 volUi. Motor and IlPDrrator art" mouDtffi on a e<ingle .. haft. ~totor iM a l hOr~poWff ~'If~tartlnJ:: indUC'tion type. Both motor and gt"nrrdtor U!lt" nO bru!!ht"1t or nJmmutalors of any n·pe. OPft"atrs 1uietly and ",ithout RF intt-r-

~:nK \~~~rr o:~E~ati~r~:h~n AlrrrD~ ftlg1Drerli and Educational Di\;&ion Advisory Staff will be "lad to consult with yoU ~gardina your educational and equipment needs. No charlie Of' obliColtioD for this service.

MALLORY 10 AMP. CHARGER Black wrinklr-fini!!hPd ('aIH", Copprr-sulphidr dry diMe': tyPf> recti/i("f". MN("'ronthrfront panrl indicat_ when batt«'TY is bt'ina: tharJ::M, OutP'llt. 7 to 10 amp:.!. SpetcialovrnUzetran!l.formM" pro\·ideM troublr-frl"e taper charRing. Oper. at~ automatically on

~ih ~~t,~n;il!;~~rr;~ mt"tallit drcuit b~l.;ft" - no fui!lt"~ an" utW"di

protects charger from improper batlM")' con. nectIons.9Y .. x 6!4 x 5%·. For liS volts. 5().60

'l&~j~~·TI~~"'i·07 . NET ... S ll.76

WITH BUILT·IN RF OSCILLATOR New dil'ft't noad inK '·0 " mete1" \\ith built-in Rio· OloK"illator , F'e-al ur_ rUKKed dHiw:n. port-

~~:!~e. id~-a1il,Ii~~~(~-rta~~~·It.J·:i~~ ::ndi~1n!li~~~~" 'dr~~';;"\~~rrdlil~rr~t o.illator fr~u~'"Y ran~~. 60 KC to 60 Me. l'OnUDuou!!ly \·ariable and aN"urat(' ",ithin 10%. Seonlloiu"op DlaRic cyr indicator JX"rmit~ fa!!t ~in~. No mPlrl"M ulM"fl or noquired. Bridae cirCUit U!M"Ct huun'1!. accurate "Q.' mf"380-

d~;'::!~t '!,fd~fl:at~~~!!I~fit:~e~'ii::':i't~:; ftuctuatlom and normal variance in tube characteri8tiCll.. (h·erall sin. 20 :II: 12 x 13'. For 105-120 V .• 60 eye. o~.,.ation. Complt"te

8~~~'7~·f~~·u: · .. W .. :S 380.00 84-971. T)"IX! H2. Same al' Type 1.4 de1lCribed alx)\"e f>xeept o!K:illator ran8f> f"X-

::'~od~\"CI~ t,!~ ........ s~ 80.00

nllm ftonr modt"1 drill

~~~:v ~~~~!J:.:rf:r;i:: IJIt"'ali nil rtlui J"lJ'IN I t I.rou"hout. t"t"atu~ ~trt"nglh. riKidity and total I~k of vibraUon un,lt'r bra,·y load .. or whrn doing Ih.:ht work at hiw:h lIpt"e'Cb. Table IIUpport hali e'XI ra heavy rI bR. Motor hrack~ f'a..'lily adju~tf'd vertically aDd horizon tally . O-y~ - Jacob!! key chuck WIth No. II tapt'r i,. ground and balanC't"(J. Head mechani!!m ha." sixI'IpliDrlltt"t"1 llpindle. Hra,·y Frry-iron headcal'ltins.::: mcludH pulley J:uarr1 and "pinlll.- ("'3p. Spin,lIe i ~ tap('"red and ha." a thwadf"d collar for IW'ru rf"ly hnldinJl: adaptor". !'.laxilnum travrl. 4', (Jiltla~ from cent("r-Iinf' of drill to ('Olumn, i~. for drilling to t'Mltt"r nf 1"Btock. The adju~tabl(" dl"Pth gauR.~ iM gradualt."Ii in Vi' "Il"JlI'I aDd may be !It''t at 0"' rt"gardlt"S.'" 01 drill pollition: all'W) ha!! potUtive MtOP lock \\ith

~::ir~r~:~~~%~ d1:~~al!"I~I.o~O r:il~ ~t!rt tilt!! 10 ·IS- . Ba~. 12Yi " 16V,' oVe-Tall. ~1iU,

~~I:n~ f-:h'!!t~ .. r~~~ 'Shc~~e~~ .. ~~'1;~frr~ SUIJPlit-d completr with motor pullry and 40'"

~r..I~~(O~'~R 3081. NET .. S 59.95

::t:::~i~i, 1~f!':iUu"':,("~trT ~~ r:p·.S2~.195

TORK TIME·SWITCH CONTROL ModeJ 191 A Indu9trial Control Electric Tim('" ~ .... itth for light or heavy load9 not to rxC'f!'Pd 20 amprre1l or 2.200 watt!!. Undrrwritru· Laboratory inspected. Turn!trlectri(.-aJ equipment on or off at pt"rdt"trrminf'd intf"fVal!! of IS minutt'a or more 0'·1."1" COntiDuOU~ 24-hour JX"Tiod~ of timr. &-UinK" c-an be made to an accuracy of \\ithin pin!! or minus one minute. Single pair on-otl switth hn-ak!fl quld:!y to minimize arcing. S",itth oprratina: llO.'Iitions arc Quickly and <"3l'ily M"t up, Switch <'an be o(X'ratrd manually at any time without dil'turbing prt"-!let adju~tment!!. Opt"ratM from a !10-"01t, 6O-<-ycle oil-~ed fiYnchmnou!l. motor. All other part~ oJ>("'r.tting faMtlM' than 8 r.p.m. an' alqo oil-S("3If"d for lona: life. Hou~ in durable 8y": x 5!.01! :II: 3!.01!- stH'1 ~.

~fi~li~2~npfrT~.t.~ .~~~.~~I.~ .. Shipping weight. 6Ih~ . .. , ... S9. 1 0 16 FOR VICTORY BUY U. S . WAR SAVINGS BONDS AND STAMPS

C/Pne4-C O~ RES 1ST 0 R S HANDY KNIGHT INSULATED

CARBON RESISTOR KITS

~~thP:r:~d; ~a~~::n lIia:he.t quality Knigh t "uwaled Carbon R-..!lt . on llupplied with hand y C.a..~ and mouDlin. :otrip." , 2-4 rommonly ullt'fl valu("!II. Kle'ep a \;: itOD your ""ork ~h and anOth~r In your tool bag--»'ou'lI have the r~stor you D~ ",-hen »·ou ..... ant It. R M A rolorcoded. With free ColorCode Guide . Increa.r your t!'ftiri.D~ and profit!l b»" ha"ing ilvailable a !l ut~tantial etoc k of th~ quality ~!listor!l.

CO NTAI N THE FoLLOW' NG VALUES : Oh~.Oh~. Oh~.Oh~. Oh~. Oh~.

200 1000 6000 20000 SOOOO 250000 400 2000 10000 25000 60000 SOOOOO 500 .1000 12500 30000 75000 t Mes. 150 4000 15000 40000 100000 2 M~K.

1 WATT KIT Con!lillu of onr ~eh of the above Knllht InIlUlated RIe1d.torl'l in 1 •• tt sl:u. Wt .• I ~ lb,. .

~.~O.O. . ... .... Sl.30 '" WATT KIT

COn!lhlU of one e-acb o f the abo'\'r Knight lrau l .. kd R~btor" In 'h •• tt size . . Wt... I lb.

~.~O .' : ... ....... .. ... .. .... . s 1 .05 'I. WATT KIT

Randy a~..artmmt coneilltlllj,! of ODf' Pacb of th~ abow Knight Insulated C.,.boo R('1IJbton in

~ .. Tti~."~:·T~~)K: ~t.: .~ lb . . . . . . 8Se

12 POPULAR VALUES WITH HANDY HOLDER

An all~ In shop o r oa .r:rvlce call,. . Earh kit ill an U8ortm~nt of the 12 mOllt popular vaiUrl!! of Kn ight

~~\t'~Yc~l~r~~. ci-r;,bot! ='~~ on sturdy strip mpplied . RM A Color - Cod~ ehart with eao:b kit.. A

It~b~~::~:~~~ f&';ro:IY :~~~~~. STANDARD VALUES

Ohm. Ohm. Ohn.,. Ohm. 200 JOOO 20000 75000 400 4000 25000 .00000 500 6000 30000 250000 750 .0000 40000 500000

.000 12500 50000 IM""R. 2000 • 5000 60000 2 M f1l .

1 WATT KITS 2-72 0 . Consim of one Ncb of t~ abov~ fro m 200 t o 15,000 ohmll . Shpl. wt., 10 oz. 2 -72 1 . Conll-i.tll 01 one ~b of tM above

flf.p'tl~·:O~ ~~~.,.. ~~ 2 ~~~ '. ~'~ ': . I.~ ~~ ~ 60e

WIRE·WOUND RESISTORS

\\"i,..· v,"()lInd on a hak('"lite fttip with !'Oldrr IUR" at pach end . Reilllance wir~ Is II~' wo~nd : c-.... nnot JIIhort brt~o turn.. ~_

~\~·o i~1:~r i~gr~r ~~ ::~~~~~~ t'O~v~~w~:: rathnde of rrc-tifie'r tube and B + to prr~nt condelUlN lailurP In .-\C-DC 1!IIf't1l dut' to \' oItalle SUrlf"!! . ,.1I valuC1l OUI·tisted bdm'f'. \\-'dght. Joz.

o~ma l Ohb,:a ,' o ~;;:a l o ~::; a ' l O ~;a 2 8 25 1()(). 600 3 10- 30 200- 700 "' IS - 40- 400- 1000

lO-~"o°R ,~~~C~~c~~lu.a O."lr.d . . 7 c

CENTER·TAPPED RESISTORS Idral for filament or bum balancinK drruilll. Wire· wound on flexible 6ber stril)ll. Suppl ied In vaJUI!l'l n1ark~ (-) ilbov~ . ShpR. wt., J oz .

:O-~~OR 7~~~C~'lc~~~~.~s . O."lr.d. . 8e

kNIGHT INSULATED CARBON RESISTORS

-- CROSS'SECTION -

SOLIDLY BONDED AX'AL LEADS

NON·INDUCTIVE NO CAPACITY

The Certified Resistors with the 2·Year Guarantee Complpt~ly insulated. non ... inductive rNston.. I bondl'"d aDal leads. ElectricallY .. nd me'l"hanl-

~~"!~~~p,!-~.I('"I~=~.~~i~~I:=-ti&'id~ ~~an~~gf:~ {~:~:.nSh~';. :~~n:!~onIlJly STANDARD STOCK RANGES-SPECIFY VALUES DESIRED

Ohm. Ohm. Ohlll. Ohm. ' Ohm. Ohm. O hm. Ohm. Ohm. ----so -.00- ..........-rnJ ~ 1SOOiI ---SOOOO 200000 900000 ~

75 500 2000 7000 11500 60000 25CM)()() 1 m~l. 6 mt'liI:. 100 600 2500 7500 20000 7(K)()O 300000 1.5 m~.. 1 m~a:. 150 750 JOOO AOOO 25000 75000 400000 2 m~.. 8 nl~l. 200 1000 3500 9000 JOOOO 100000 500000 2.5 mell:. 9 mea:. 250 1250 '000 10000 35000 125000 600000 3 m~K . 10 m~l:;' 300 1500 5000 12500 40000 150000 150000 " m~ •.

1 .. S00. 14 WATT_

NET 4 E .. CH . . . . . . . . . C

1 "820.!-'l WATT.

NET 5 UCH ... . .. . .. C

1 .. S40.1 WATT.

NET 6 UCH . . . .. . . . . C

1"860.] WATT.

NET 11 UCH. . ... . . C 10 'or . .. ... 32C 10 'or .. ... . . . 40e 10 'or .. .. SOe 10 tor . . .. 9ge 100 'or .. . .. S2 . 88 100 .or .. ... S3.60 100 .or ... . . S4.50 25 tor .. .S2 . 20

Above Quantity Prices Apply for Assortment of Any Values

RMA COLOR·CODE GUIDE A hilndy \"ftlt p'<?c1.:et re!listor I::ulde for (,,"I,'ery ~f"rvlCt"ma.n. bulldn-, ~~perimrnter, etc. Formed from Ih::ht-weight, attractive \'arni5hed board. II oUt three rotary di!:IC5. Quickh iDd.katra value of any resilltor color-codcl accordinll to RMA "tandar-ds. eithn- old style with cenkr dot, or new IjItyle with colored band!!. The Kuide t. marked for .. Body,·· .. End.·· and "Dot" colon. For ~l'tors mar-keel ",;tb bandll. read from lrit dtK to rilil:ht In th~ !lame 8equrnce th.ill.t

2-jr70~1IN":r. ·. ~h.~" ' . ",:, .: . 2. ~~: ..... 12e FREE with order for 30 resistors

KNIGHT WIRE.WOUND '"OWER RESISTORS

Finest powC'"1" re!lilltOrtl, wire-wound on .ill. ceramic core. For radio. electrical and Indut'ltrial applications. Coated with a heavy prot«"dve cement which pro"l,id" complete prott"Ct.Ion ;lgain.-t molstur~. All unite are clt'arly marked ";th. thMr rNlItance value. Hollow Cor~1I prmrid~ maximum heat di~patlon. 1%· tlnnrd leada. Shpg. \\'1. , " oz.

SPECIFY VALUES DESIRED ohm fffh m ' Ohm Ohm Ohm Ohm --, - 25 -1 """"""250 TIOO 7500----.0000

2 - SO 400 2000 10000 50000 5 75 500 2500 t5000 = .0 I t OO 750 3000 20000 7

15- 1 SO 1000 ,,000 25000 80000 20- 200 1150 5000 30000 100000,

10 WATT SIZE. 1'1 •• '11 ,' 1 .. 5.0. Inallvalu~t"lI«pttho~ markrd t . ~~f'- S/la: ~e:ACh~~. ~~~~j.ne . . ....... l8c

20 WATT SIZE. 2 • v,' Avallableln all \'aluM eEcept those marlr.rd - . Specify values de:dred wben orderine. 1 - 580. Valu~s 1 to .'i0.000 obms. S~lIy

5~~Rd~~~ EtA«"C~~~e~~~: .. ... .... 32c 1 -5BO. Valu~l!I 60 .000 to 100.000 ohmll.

~~ ;:!;:~ ~A~jt1: ..... .. ... .... 37 c

KNIGHT ADJUSTABLE WIRE·WOUND RESISTORS

A high-grade line of tough. rulg~ f'el:iators that will take plenty at puni~llfnrDt Act· u. n.tcly wound on ceramic tu~ ; made to riJ:id flpec1lh.'atiolll4. Ideal fur u~ in radio cl~ .. wht:f'"e dfe\.."t->l 01 varylllg volt.a&~ and CUrlelit art" studied ; for ex~rimental "'UrI.; wh~rc odd r~lJtance v alues are r~uired . ComPI~te witb "Uder lug and rnountina brackel8. ExCt"'lIenl 'or all indu .. trial application:!. Plt'a!ll!! extend hieh("st priority to speed delivery. Av. \\o"t. •• 6 o~

STANDARD STOCK RANGES Ohm . O h m . Ohm. Ohm. Ohm.- . - - 5- 0- ~ 4OOC) 20000 -

2- 75 750 5000 25000 j 100 1000 7500 30000 5 150 1250 8000 40000 7.S· 200 1500 8500 50000

10 250 2000 9000 60000 15 300- 2500 10000 80000 :W- 400- 3000 12000 100000 25 500 J500 15000

10 WATT RESISTORS 1 - 500. Available in all valu~ Mhown from I to 10,000 ohm::!. Specify valu~ when order-

iNiTS~l·c~~:?·:.. . .. . . . ... 3 5c 25 WATT RESISTORS

1 - 520. In \' alue~ from t to 5.000 ohm!!. n~t tho:toe mark~d -. Specify valul."li when

-;r~~nE~~~~' ~x.y.· . . .48e 1-520. In ,",alu., from 7.500 to U .otNlohmll.

:miftAC~~~ . ~·~I~~ .. O~~~i~~~ .. , ~i~~:. ~5~~ 1-520. 20.000 and 25.000ohmli. EA ... 6le

50 WATT RESISTORS 1 -540. In Valuf'!l fro m 5 t o 5 .000 ohm!l. e~

... ~Pt t ho!'C nlarkeri • . Spec iry valut":C \\'h~D

N'1Ti~KA~~~·. 411; %· . . .. 7 6e 1 - 540. 7.500 to 25 .0UO. EA CH .. , . .. 83c 1 - 540 . .10.000 to 50,000 ohm:!. E ACH . 9Sc 1-540. 6O.000toI00.OOOohm!i. E A . . Sl.12 2-620. E.~tra I.u~ for 10 watt uni t~ . 2-621 . Ealra LUg for 25 and 50 watt unlls. NET EACH ,.. . ...... Se

NOTE: W. can aupply Ntaialon for every radio and electronic purpose. Pleaa. aoe pogea 18 ond 19 for additional d'aplay of popular branda and valuea.

ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL, 17

q~~ Q~ RES 1ST 0 R S SPRAGUE KOOLOHM RESISTORS

Wire - Wound . Fully insulated. Cannot !lhort lJct ween turn:J . Red dot at end change, to

f!~~'nto\Y~edn \~r:~~I~~ i~\·~~~~. C~I~gl~ mounted a.IJ:ainst chassis wIthout shorllnE. Ceramic form. Accuracy, ±S%. Av. wt.. J oz:.

STOCK RANGES-SPECIFY VALUE.S Ohm • • Oh nu Ohnu Ohnu Oh m . -5- ----roo- ----goo- ----woo t5(jiji)

10 150 900 5000 17500 IS 200 1000 6000 20000 20 250 1250 7500 25000 25 300 1500 8000 30000 JO 400 I 750 9000 40000 40 500 2000 10000 50000 50 600 2500 12500 60000 75 700 3000 14 000 70000

TYPE5 K~ WATT l~.~· -St ock No. Ohmt EACH

1 -640 10 to 5000 24c 1-640 6000 to 10000 Ug 1 - 640 12500 to 15000 1-640 20000 32c 1 - 640 25000 41C 1-640 30000 ~,4C 1-640 40000 Oc

TYPE - . 1 - 660 5 to 10000 26c 1 .. 660 12500 to 15000 2 ~C 1-660 17500 to 20000 : 1 ~ 1 "660 25000 1_660 30000 sig 1 - 660 40000 1 .. 660 50000 5 c 1-660 60000 7 C 1-660 70000 8 c

NON.INDUCTIVE FIXED TYPE 10·NI RESISTORS-IO WATT. P I, I 'II "

W lre .. wound t1!Bil'ltors of zero inductance. un~urpasscd for tde"i~ion plate-load circuits. etc 2 minI. dilJtributed capacity to 50 Me. 1. .. 680. 10. 20. 30. 40. 50. 60. 70. 80. 90. 100

i5~C~~:. ~~~ . ~~~' .... ~ .~~~.s: .. " .3 Sc 1 .. 680. 1250.1500. 2000obm!l. [A C H .41c 1 .. 6 8 0. 2500. 3000. 3500. 4000 obms. EACH . .. ... . 4 4 C 1. .. 680. 5000 ohms. EACH ..... . .. . . . 4 7 c 1 .. 680. 7500 0htas . EA C H . . ..... 53e 1.-680. 10000 ohm'. EACH . .. 6Se Spe~lIr .alue .nd stoek no. when ordering

CONTINENTAL CARBON TYPE C CERAMIC·COATED RES~STORS

1000

OHMITE "DIVIDOHM" ADJUSTABLE RESISTORS

iI L£ .£ . :~;

l¥4t% =:J ~

1I.ere·s an ideal rN!!Jtor for inaum~able purpo~: for transmitters, for adjulttinlZ drcuits. to compt"nltate (or vanou!l lllle voltagfiJ. etc . Wire-wound on porcelain core with yjtr~us enameled coat. Includes slider and mtg. brae\: ets. 25 watt me is 2'" lon~; 50 watt. 4"; 100 watt. 6Vz· i 200 watt. 10~- . Av. shpg. wt.. t lb.

25 WAnS

No. I Ty p e I Oh m. I M • . I EAC H

7 5-7801 0 368 \ 100 500 75 .. 781 0371 250 316 75-782 0372 500 223 75-783 0373 1 750 182 ·75·78 4 0175 1000 IS8 56. 75-785

1

0376 1500 129 75-786 0371 2000 111 75-787 0378 2500 100 75-788 0379 3000 91 75-789 0382 5000 70

75-7901 0384 1 7500 1 S7 1 ~g:~:~ g~~ }= ~g 6 5c

75-793 0387 15000 34

~ ::~~: l g~~ 1 ~~ I ~? I 71. 7 5-880. EXTRA SLIDER .. . ... . 6e

50 WAnS

~:::g~ g~~ I ~gg ~t~ 75_802 0570 750 258 75_803 0572 1' 1000 223

~ ~::g: g~H ~~ }~~ 88c 75_806 0575 2500 141 75-807 0578 5000 100

7 5 ·810 058. 20000.8 • ~::g:1 ~:~ I ~~ I ~~ I 97 75- 811 0585 25000 41

7' ... U21 0586 \ .'0000 I 41 ;1-----~:::u 8m = ~~ S1.12, 75.8151 0591 I IUOOOO I 12 I 1. 29 75-880 EXTRA SLIDER . . . ~

100 WATTS

7 5 -85°1 1362 1000 1 447 1 $1.9 4 75-851. 13M 5000 200

75 - 853 1365 10000 141 75-85 3 \366 15000 lIS 75-85. 1367

1

20000 100 75- 855 1,168 Z5000 89 75- 856 1369 JOOOO 81 2.2 6 75- 857 1370 ' 40000 61 75-85 8 1371 50000 •• 75-859 1372 75000 33 75- 860 \J73 100000 25 75 · 882 EXTRA SLIDER . ... 9 c

IRe ULTRA HIGH·RANGE METALLIZED RESISTORS

rl Desi.>::ned lor UHF u!'C'. Sprt""ial C"On!llrtlctio minimizt"II IIUrfat..""e It"a kagf'. Tol('ranct' ± 107C Maximum \ '011". !mo. Sib.-. I'~ifl" x I~".

N~I Mro!.IEACH-1 NO' 1 M;;;.IEA£!i 1-150 100 gBe 1- )5J IOOOIS1.47 l -lS1 2su 98e l ~ JS" .1101101.1 1 .47 1 .]52 SOO 98e 1 _155 1000(1 1 .98

OHMITE "BROWN DEVIL" WIRE·WOUND RESISTORS

Famous" Brown Devil" resistors for ;;11 ra~.ho and industrial requirements. Compact wlrewound unit. \\;th vitreous enamel coatlnlo: whic h protecU against humidity and mechanical damage. Tolerance. ±IO%. Sturdy l JA"x YlfI- ' Tinned lead!!. Shp8. wt .• J oz.

STOCK RANGES-SPECIFY VALUES "'""Oh m. O h m. Ohm. Ohm. Ohm. --1'- 1""25"' ~ 6000 -rn»oo

2' 150 1100' 7000 30000 3' 200 1200 7500 35000 4' 225' 1250 8000 40000 5 250 1500 8500 ' 45000 7.5- 300 1750 10000 50000

10 350 1850t 11000' 55000t 12- too 2000 12000 ' 60000t 15' 450' 2250 12500 65000t 20' 500 2400t 13500' 7{)()()()t 25 600' 2500 101300' 75000t 30' 6501" 27501" 15000 80000t

~~: ;rJ ~~ n~: =+ 50 800 4000 18000' 95000t 75 8501" 4500 20000 looooot

100 900' 5000 22500'

10 WAn RESISTORS A"ailable ta all valua except tbose marked t 1-700. Vafu •• 1 to 10.000 oh m •• Sp.clty

N~'Te·[~cs:t .• . ~ ' ..... . . .. .. .. ....... 26c 1. .. 700. Values 15,000 to 50.000 ohms.

~[·TItIAca~~~: . ~.es.I ~~~: ... . ... . . . . 2 9c 20 WAn RESISTORS

A\-'ailableta all values except those marked -1. - 720. Valu." 5 to 15000 ohm • . S ize. 2x

~~TS:~~~ .~~I.~~~ .~~I~~~: ... .... 41 c t.-720. Values. 2DOOO to 50000 ohm ...

il[et2[~iH~P .• ~.' ~~ .".~I .~-:. d~.~~ed.. SOC t.-720. VatuM_ 55000 to 100.000 ohms.

il ~et 2[XiH~.~~~ I.t~ . ~~I.~: .~~I.r .•. ~.. 65c

OHM'S LAW CALCULATOR Thi!! new calculator anllwerl'l any Ohm's Law problem with One slide 1K"ttinR. Find!'! volts. amP!'! .. a nd watu. Resi", tantt rang(" from 0 to 10 megohms. Hrul ~alt"s on both !'ides.

~~/~eot~ ~rt~t.e. ~hpg .. . w~.: 5 ~~. . 10c

KNIGHT 5·WATT WIRE-WOUND RESISTORS

}o"ioelJt qualilY wire- \\"OUDd rt".lii:,tor" fur an radio\\"Url.: . To!eritacewlth in 10% . COlllot-'''iiI· live waltaKe raliog. Di~pale heat rapidlY. Triple Insulation protecl'J against mOl:tture

S?~r~~,,!C:I~tfl,!J.n~~J,!~V~'~~' ~t~~t.all:I and lues.

SPECIFY VALUE DESIRED

Ohm. O h m. Ohm. Ohm_ ' Ohm. --.-. - 150 ~ --non- -cj(j(jO-

10 200 1000 2750 10000 15 250 1100 3000 12500

- 20 too 1250 4000 J .~OOO 25 ."(KI I.~OO 5()(kl 1 ; :;01.)

~~ ~~tg ~~~ ~~:: i= I un 800 2250 Moun 2.I!jOOU

~i\O~A;;---- -.~ .. 1 Sc

18 MAKE ALLIED YOUR RADIO SUPPLY HEADQUARTERS

llRl£ RESISTORS IRC "WW4" WIRE.WOUND

PRECISION RESISTORS I d ~ al l or u s c <1 5

~~ ~ metu multiplle-rs and

abount s . Accuracy witnin 1 ~ . V:duf's to

. '. ~~~C::l~~::~~al·~~11 • • dia . Othe-I'II have

. • knqrl~ DUU;aiU! 2'''''' .'n· dla, A\'allable In odd sl,,!!!' on spedal order at cost of nest bi£ber value Wt J 0%

No . r.sao 2 · 501 2·502 ' · 50] 2 .. 504 2-505 2 _505 2-501

.. O hms NET No . Ohn" NET --1- --- 2· S21 40000 ra:n

10 2-522 50000 . 70 25 2- 521 60000 ... SO SOc 2 -52<1 75000 ...

100 2-S ZS 100000 i .n 200 2-52' 125000 t. :U 250 2-S:z 7 150000 1 . 11 500 2-521 175000 1.11

.

IRC RESIST.O·CABINET

GET IT FREE Wi."

Pure ho1. of

Asso .... ments 1.low

Sturdy. oon -metOtl1lc t:2blnrt. 4 latKe dr.\\.>t!J"IJ b.:llVe arparate ~t.ioDL Ilx5Y,_ S~" .

RESISTOR ASSORTMENT No. 1

r~. 51~~·2'1doo~ an:~~1 Ob~~:. l ~~ ~ J5=~f.::t~ -~i5 1 ;:ftt.~ !.n~~;n :2~; tooo. I'soo. 2000. 2$00. 5000. I SOCkl. a.ncl 25000 o hms . 1 .0 a nci 2.0 me-gA. ; 3 ~h: 10000 and soooo ohms . . 1. .25 , and .5 m<'I· ; A. 10 W a tt . I each : UIOO. 1500. 2500. ::l nd 5000 ohm.; 2 each : 10000. 15000. and 2SOOO obms; aDd ABA II Wett edJudebl • • I each : 1000. 2500. 5000. and 10000 ohms. WL. 7 lb. ...

:';:.~~b~~:,~I~t:T ~.I.t.~ " ..... $9 .68 RESISTOR ASSORTMENT No. 2

Cont a iD!' 100 Type: BT·1h. and .W· Va. !IJ w.tt uaits for V. 'h or 'Ii wett replattmeDts In IIUdli" lIt:u.' or for laboratoriea. rt.c . U.it.

~~f5fl~~;~~~~~ ~llhO mea. ~9L. 79Ib8'~ ..... ~ cabln.t. NET ...... ,.... •

RESISTOR ASSORTMENT No . 1 Contai n!! 1 1 T ype- .T-l .Dd BW-l. I W.U MHaUizM Re~iston i n a balanced asaortmeDt from 50 ohm, to 1 .0 mrg. y..'L. 7 lb • .

:~.~ ~:i~:~I~t;T ~.I~~ ........ $9.76 SLIDERS FOR ADJUSTABLE

IRC RESISTORS Thrnrw " X " ", .. , .. ,.,. ha vi! 3 . ilvrr ('Onl:v-t b,ltton at tach«lloanle'tal"Ilrina. "'::timinate. d BmaKe and makrll ~t.h-e cootact.

NEW " X" TTPE

~ ::g:::: ~~~\t~~r:!:="1 EA.12c 2 ~803. I'or IlAA' 1I0A fT;Sit'lOn. NE T . 1 Sc

STANDARD TYPE 2~.00 . For A S A type re!liston, } EA CH

j ::g~ : ~~~ ~VA\t~~:r~~!~~%~' 6 c 2 · 808. For HAA·HOA resi t'ton. HET ... 9c

IRe ALL·PURPOSE INSULATED RESISTORS "BT" METAlliZED AND

" BW" WIRE·WOUND TYPES Hilihed quality r~sistorlt . U :'e the

~cdI'u~tl!:7:. '~~~~~obi~~t~: CollDttt two r~!lton in .ut~ for ceatft tap. U~ aaetalliud"'typc " ST"

~~oall .e=:~ :!r'io~hia~:nOI':;;; a m pliCl'I. He:, W t .. J Ot: W _ c a n .... ppl,. t,.Pe " '- " I RC re.lslorl on s pecial order. Price. are the Mme a. th .... qu.ted 'or t,.pe "ST."

STANDARD STOCK RANGES-SPECIFY VALUES DESIRED

Oh .... O h m8 Ohm. Ohm. Ohm. 0 1'1",_ Oh .... I Ohm.

0 . 5 JO 400 2250 9000 J oooo 150000 2 mea:. 1 40 450 2500 10000 J Sooo 200000 J me. , 2 SO 500 J ooo \1000 .0000 250000 4 mea: . J 75 600 JSoo 12000 50000 JOOOOO 5 me • . 5 no 750 4000 12500 60000 400000 6 m .... R:. 7 . 5 ISO IlOO 5000 15000 65000 500000 7 me •.

10 200 1000 6000 • 7500 70000 600000 tO mu . 15 250

I 1250 7000 I 20000 75000 750000 20 mu.

20 J oo 1500 7500 22500 100000 I mea. ~ ~

25 JS O 2000 1000 25000 125000 1 . 5 me&:. ... . .

TYPE BT· 'h-'I, W ATT TYPE BT· 1 _ 1 WATT TYPE BT·2 - 2 WATT 1.·000. Aval13ble ia all 1. · 020. A v aila b le fa a ll 1.·060. Available iD all raoa~ f rom 2 S0 Dbms to 2 0 ranies f rom 1$ ' ohms to 20 ra ....... s from 5 00 ohms to 2 0 mCliohm • . (Below 250 obms fM'lohmlt . (B .... lo w 350 obms megobms. (Below 500 ohm"

i:;~K~~:~t~~~~:;"::!I~: uol :"',~ 1~n~.: .. 1 s;:!:ttiY~h:~! ;~~~ ~~ .. ~~;!.T~~~ ! ~a~~; when orderlnK; . dOlO... va luc!! when ordcrln • . 18 ~~H . . .... . .. ... , ... l()C ~~H . .. . . ....•. . .. . 12c ~:JH ............ ". c ----------------------TYPE BW·'h-'h WATT I TYPE BW·1 - 1 WATT

1. - 080. Available in a ll 1. · 0BO. Avallabl .... I n all ranae8 from 0. 5 to 7S0 ohm!!. ran)/.e1I from I to .OOO ohms. in In atandard .tock nnaes standard s tock rallac" tlbow a a bo'n: . Si.l4!'. 'I • •• ~' . 10 above. Size. I V. "zY.· . 12 :':JH.. ............. c ~:JH ....... "...... c

TYPE BW·2 - 2 WATT 1. - 1.00. Avail"bte in all r.ana:Hfrom 1 to 75 00 ohm8.ln auodard rltock ranlc lt sbowa "hove. Size. 1';'·K1iI· . 18 ::lH.......... .... c

IRC WIRE·WOUND RESISTORS ' •••• 1 His:h ' RTade n-51lIlor~ on oon·hycrO!lCOfllC core. Have ~ durable CC!lIkDt coatln •. HeavY t«-rminal lUIS on all

fiXED

eu-ep:t .. AB" a nd " DG" wbJch ha,,·c stron l: wi~ leadli. Unit!! 0'25 ... atb and UP i1l("Iude mtg . br..,d,e-u. Adju,t..,ble t~ of 25 watt. and over have .Ivet" CODtae:t slider. Attur.acY ",-fthla 5% . Av ...... 10 to 50 watt. 5 oz. ; 100 to 200 wa tt. I lb.

ADJUSTABLE SPECIFY VALUES DESIRED Ohm. r1f- Oh m . Ohm' l Ohm' - 1-- --7-5-~~

2 IS ' 000 J50 800 J 20 .50 400 1()()Oe 5 2S 200 5000 1250 7 ~ 5 SO 2500 600 1450

FIXED RESISTORS TYPE AB 10 WATT-SPECIFY VALUES

~~ 'lri.~~i'7r.0J8 -!~~~OO~;;''T\ :;:O.;.~ ~~:~b~alt ~~gl 6.~~:!'s~O::~H.·~ . . 26c 1..1.20. 12.500 t o .5O.000 ohDUl. EA • . . .. 29c

TYPE DG 20 WATT-SPECIFY VALUES 2· 11: s. .. . A"'allab le in all .lz~ IlhowQ a bove ezcept 2. J. 7.5. u . 20. 600 and 14S0 ohms.

'i°_ a:~.r~t:~t5~:OO~:!.~:G:r· · .41 c I. - 1.60. 20.000 to 50.000 ohms. EACH . SOc 1. · 1. ... 0 . 60.000 to lOO.OOO o hn:ul. EA •. .. 65c

TYPE EP SO WATT-SPECIFY VALUES

1~~6~',,~ ~o5.Jggi~b~. ~Ai H ... 71 c 1.-1.60. 7.500 to 25 .000 ohm ... EAC H .. 8 2 c 1. - 160. 10.000 to 100.000 Ohgl~. EA . .. . 94 c

TYPE HA 100 WATT-SPECIFY VALUES

~,:z;oJ .'1cio'~ ~~~~~as~E~~;' . 97 C 1 - 300. 7.500 to 25 .000 ohms. EA .. S 1 . 15 1 · 300.30,000 to 50.000ohm ~ . EA. 1 . 29 1.- 300,60.000 to 15.000 ohm :ol. EA .. 1 . 47 1. -30 0 . 100,000 o h m s . EACH ... 1.82

TYPE HO 200 WATT-SPECIFY VALUES t OYz· s I ti·. Ie :.aU:!!! indicated by - . Id~ ror

~~~~~\~~·10.000 ohmw. EA. $ 1.62 1. - 320. 15.000 to tOO.OOO ohm • . E A. 1 , 94

Ohm_

--'sOOO JSUO 7000 ISOOOO ~ ~1~I~hm' l Ohm, 20000 4000 7500- 20000· 5~ 2250 4500 1()()()Oot 25000- ~ 25000 5000- 12000 JO()()()t- 75~ .I000O 6000 12500 J5000 1()()OOOo

ADJUSTABLE RESISTORS TYPE ABA 10 WATT-SPECiFY VALUES

~~~ o~,.I~I-: :~~sl hfet"~ aDd includiDC 1·200 .... CH ~ ~~ ~ .~~ . ~ ~~~~~~~.~~ 44c TYPE DHA 2S WATT-SP ECIFY VALUES 2t,.i· It ~' . l a si.zft indi~tcd ~,r .up: to and la·

1~~i2~ .5i~ t:h5~000v.;:~~ " ·i:;CI~~ .. 56, 1. - 220. 7 .500 t o IS.OOOohms . EACH .. 6Sc 1.-220. 20.000 to 25.000obm • . EACH . . 71c

TYPE EPA SO WATT-SPECiFY VALUES t.~~ ~~'iY A"' ~.ill.t:»I~i~Der~iUfl Irtdicatcd bye .

1 · 240. l ll8"toS.oooobms~ [ACH ~ .~ ~ 88c 1. - 2 4 0 . 7.500 to 25.000 obm • . lE AC H .. 97c 1. - 240. 30.000 to 50.000 ohm • . lEA •. . S 1 . 12 1-2 ... 0 . 6O.CXKJ to 100,000 ohtn~. EA. 1 . 29

TYPE HAA 100 WATT-SPECIFY VALUES 6 Vz" .. 1 ~' . 10 ltlze iodlcated by • C1I:«(Jt 250 ~~~M6~~i\'Oo~~ ~~!I~::~. EA • . , $ 1 .29 1. - 280 . 7.500 to 25.000 ohm • . EA. . . 1 . 47

~ :~:g: :g:~~180~~~¥.E:': , : : ~i TYPE HOA 200 WATT-SPECIFY

VALUES

~~~:h~ '(t;i·tt!~ t~ '!X~!~r::..~ ., esttf)t 1 · 340. 100 to 10~obm.~ [A . 1.94 1.·360.1.5.000 to 100.000 obm4. EA . 2.26

ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL 19

MAIT]RY CONDENSERS TUBULAR DRY ELECTROLYTICS

Small !li:z:e single and multiple uniu for use where y our space is li mited. Come with 6 · 8~ble leads . Not. : Capacities of same voltagc

h~c a~g~b~ comrnaullrd to Indicate chanae in \o"oltagc. Shipping weigbt. 60z.

ST-SINGLE UNITS FIG. A

~1~IWk •. V· I T··· I~I NET 17-000 8 450 595 7.4Z21~. 50.44 17-001 t2 450 596 l~z2' · .53 ~7-002 16 450 597 1~2) .. - .65

2N-DUAL COMMON·NEGATIVE

17-00' 8·8 450 SI S- '~x2~- 1 0 .76 17-010 40-20 '50 ~Mt ~:~ .. : :I~ 17-011 8-8 ISO 17-012 '6-8 ,5 0 SOH l:1x2W .62 17-011 16-16 ,50 506t ~'2~' .68 17-G14 20-'0 '50 507t " 1I:2tf • 68 17-G15 20-20 ,50 500t 1)i~2 - .76 17-G16 10-10 50 IIJ! 'li .. , !4' .59 17-G17 10-10 25 III: Il\zl%- .50

tType TN card-board tubular wtth eelf-IiUw~~g A~t-Fi'::r~ea3.s, Not illustrated.

2P-DUAL COMMON· POSITIVE FIG. B

17-022/'6-8 1 '50 154< 11~. IJ4- ISO. 79 ~~::~: ~~~g :~g ~~ ~~~: :3~ 2S-DUAL SEPARATE·SECTION FIG. A

g::~: 1 ::~6 1 :~g I ~:~ IBt:i~:l sy:V~ lS-TRI PLE SEPARATE·SECTION FIG. A First section M'parate. others common neg.

:;~: :~f8~g~'8 145~S025 1 ~~ I :~:1!A - l s I : ~~ CARDBOARD CARTON TYPE

\Vlth mount ine

::n':~l!~" ~~~: ti"'cly rated at 525 V. peak. 450 V. DC working. Has mf:C.aJtab type mounting fcd. Sbpa. wt ., 6 oz.

CS - SINGLE SECTION

17- 211 8-8 .72 1 :d 1I:2 S~- 1.06 11-=-210 4. 1 '70 1 ~"~'2·i\' ISO .85 17-212 S-S-S 175 l ' at ~sJ- 1 .56

"OT" OIL IMPREGNATED UNITS

"BB" TUBULAR ELECTROLYTICS Single coDden.!ICTS. excellcnt f()r general 'purpo:,c usc and for replacin~ iDdivirluaJ ~tion.s of multi pic units. Sealed IDto iD!!u1ated tubes. Bare wire lead!! Average shipping wei&hL 4 Ol: No. Mtd. W::~V' I T:,:e

f~' NET

1f:'065 --4- 5 0.41 17-0&& 8 450 61 I' K' ~- ... 17-067 '0 450 62 1'.'~" .50 17-068 ' 2 450 6J l ' .'~" .53 17-069 ,. 450 64 11 .'~" .65 17-070 4 J50 40 l' K'~- .>S 17-en 8 J50 .. 11 Zl~- .U 17-072 12 350 4 2 l' K'Joit- .50 17-071 1+ J50 « I K'~- .5' 17-074 250"-J-'-rt

: --:l5

17-G75 12 250 JJ .47 17 -G76 16 250 J4 l' Zl~- .53 17-G77 4 ISO 20 l' K1J.i.- .29 17-G7S 8 ISO 21 I' .q.",. .32 17 ~O79 ' 2 150 22 J1 K' ~" .>S 11-080 ' 6 150 24 J1 K'~" .U 17-011 20 ISO 25 I' J::lh." ... 17-082 30 ISO 26 :~::;t: .<7 17-083 40 150 27 .<7 -u:ou --5 - --so - ,-, - 'r ~. -:29 17-015 10 50 1J I ' .1 .,.- .12 17-06 25 50 14 I' Zl r.- ,'I 17-007 50 50 I 10 1'.' \'0' .50 17-088 10 25 12 l' Zl ",," .29 17-089 25 25 15 1 ;l1l:1~- .15 17-09_0 50 25 17 17 K'l-M" ...

"TP" PAPER TUBULARS Compact sizc paper' tubular cotldmst'Ts. hermctkallY sealed for lon& life. Color code sbow~ voltdj;c rating at a glance. Shpg. ~t .• 4 oz.

600 VOLT DC TYPES No. Mld_ NET No. MId. NET

17-100 . 000' -- 17- 114 ms 15c 17-101 .00025 17-11 5 .03 15C 17~102 .OOOS 17-116 .04 1 5c 17-101 .007 17~U7 .05 15c 17~104 .008 17 -118 .06 18c 17~105 .00' 17_11' .075

:3~ 17-1Ofi .002 12C 17-120 .1 17~107 .003 17-121 .15 24C 17-108 .00-0 17~122 .2 26c 17-109 .005 g:g: ~i5 2~C 17-110 .006 17-111 .01 17-125 .4 ~5~ 17-112 .01 5 17 ~1 26 .5 ~ 5C 17-111 .02 17-127 1.0 9c

400 VOLT DC TTPES 17-140 .0\

112C

17-149 .25 18c 17-141 .0 15 17-150 .J 24c 17-142 .0 2 17-151 .4 ~3~ 17-141 .03 17-152 .5 ti-l44 .04 17- 151 \.0 35c 17-145 .05 17-154 .01-.01 ~~~ 17-146 .06 15c 17-155 .05-.OS 17-147 .\ 15C 17- 156 .\ .. \ 32C 17-141 .2 18c

200 VOLT DC TYPES

17-1&5

1·OS

1 1 2C 117-168

1.5

1 2 6 < 17-1&6 .1 lSc 17-1U 1.0 3 5c 17-167 .2.5 18e 1 7 - 170 .25-.25 35c

MALLORY ENCYCLOPEDIA La,,,,,, oo;!io. of radIO.'~ :::~a~m~~:t~rv: ~ • ",icc data 1.\1th.all rt"f.cr- ~ •. enCClJ to aDd IQCludlDJ( !

Rider'lI Manual Vol. 12. I Inlormation on vibTa-tol"ll-. IF peaks. volume controls. tube com ple- ---mcnu. transformer and filter drcuits. Includ~ t'crvtcc notc!! aDd ongi_ 3;'~1t~~m~i.;.· .~v~r ~OO pages. 2 Ib~. 95 c

STANDARD "FP" CAPACITORS Will reJ'lla~ O"'CI' lOOOcombinations. Capacities and voltages hiJ;::hef than specified are oftll!"D de"tlirable and can be used. Sectioali of equal voltage can be cODDected in paralkl. Section

~~.r.,~~r:' C-:;:ci~CS l::t8a':::~ voltage are separated by a. hyphen: comma Indi c ate s chanJ;::c iD \'olta~. \\'ith bal.;elite lDOUDtiDg wasbcn. S oZ.

FPS-SINGLE UNITS Stocle No . TYpe M td. WIe.V S b e 17-360 --r.i2 ----.0 "TsO 2. J,4 -1.7- 364 1<3 '5 450 .. 2' 1.7-3 6 1. '44 20 450 2:1:1-1.7-367 145 JO 450 3z1" 1. 7-3 6 2 '46 40 450 .bl-1 7 -365 '20 20 250 2. JA" 1.7-363 113 30 \50 2x),4-1 7 -3&6 'OS 100 2S 2::11" I

FPD-DUAL UNITS

NET 5 0.53

.7'

.79

.97 LIS .50 . 50 . 76

17_3751 2J' 1'0--101 450 1 20" 1$ 0.8 5 ~ ~:~~; ~n ~~~g ~~g ~::: 1: ~ B 17-378 208 2~20 150 211:1" .71

:~:~~~ ~g ~~lg :~g i:~: : ~~ 17-381 202 40-40 25 hI" .71

FPT-TRIPLE UNITS 17-390 JJ9 20- 20.

20 450.25 3KI- $1.23 17-385 332 10-10.

20 4S0.25 2xl" . 94 17-386 328 15 - 10 .

20 350.25 2x'" . 82 17-391 389 10-lo..

,0 450 3xl" 1.12 17-3 93 390 15-15-

'0 450 3xl" 1.23 17-392 363 4o..2o..

20 250 2KI V." LIS 17-387 306 4o..20.

20 ,50.25 >sl ' . 85 17-389 354 20-2o..

20 '50 2:1:1" .85 17-388 35' 20-20-

20 25 2xi" .65

MOUNTING WASHERS-CLIPS

WOODEN-NECK ELECTROLYTICS F or vibrator buffers and other hiJfh volta"e U!I("'!!I. Hermetically scaled con -ta.incrs. otcmally in- I.-_ __________ _ _ __ .J N~ W()OfICD-nttJ.: uDic... accurately tlulated . Removable cnginttred to provide absolute I13.tis-mounting strap. faction. DC"lJiJ:nro to U!Ie a minimum Sbpg. wt., 4 oz:. of raw matmal!t ",ilal for war produ(.'·

1600 VOLTS DC WORKING tion. Employ impregnated cardboard tu~ and lhrt"aded wooden neck. Same mounting convenience as aJuminum

~% o~c~r~c~nty~ ~~~.c~o!z:~nd TYPE RS-4S0 VOLTS WKG .

S toc le No . M Id. T y p. 51 ... NET 17-015 ---:ii02" ---:mr :~=ij: 32c 17- 016 .003 377 32c 17-011 .005 37' ~ a:1 : 32c 17- 0l! .008 372 35c 17 -019 .0' 373 ~ ~::~: 41c 17-040 .0125 374 44c 17-0U .015 375 ~ ~:~: 24C 17-04 2 .02 376 4c

\~~~ SPRAGUE CONDENSERS ~:~::~£RS

TUBULAR BY-PASS UNITS Compact tubulCU'" cond('n~n. Non-iuductivl'"ly tI,·ound . Qil .i ntprrgnat.ed. Type TC te!It volt.ag('. 1200; AA ~l \'oltage , 800 Shpg. we J 0%.

AA 400 VOLT TC - 600 vOLT No. EACH Mfd. No. EACH

1S ~.se- -- ---:ooor- ts:iiO --15-ost .00025 15·111 15-052 . (J()Ot 15-102 15-0$3 . 0005 15- 103 15-DS4 . 001 15-10" U -DSS . 002 15-IOS 1 2 ~tm 1 2. :~ u:m • lS-ass . 00.5 15-108 B-on .006 15 -101 15-060 , 01 15-11' 15-061 . 02 lS-ll1

-n:m- --:-m- Ts:iT2---rsc 15-061 .04 15-111 lSc 15-0U .05 lS-lU 15c

15-i6"S ---rsc ---:06" 1T-iTI"""---rae 15-'" 1 5c . 1 15-116 1 Be 15 -K7 lac .25 tS-Ul 26c

~~:::g I §g~ I : ~ l::n: ~I~ HANDY TC 600 VOLT KITS

Varin.y o( 600 V. tubulart' . In handy carton.

~t:~~;;: S-.S m~:.·::r~~~ "Aile .•. S 1 ~ ~~ 15· 088 . 6-.25 mCd. 600 volt "nJu . .. 1 . 1 8 15-0 87. 8-.1 mrd. 600 volt QtUu ... . 1.18

~;:g::: ~t :g~ :~~: ~ :~:! ~::~:: l :~B 15-090. 15-.02 mid. 600 Yolt "ruts .. 1 .32 15-091.. A 600 V . Spral[Uc J.:it of 33 TC tubular condt'n~ . COU.i5U of: 2-.001. J·0022S~·005. 5-.01. S-.02

j ........ os. 1<-.1.

~.T .:. I -:-:-~. ~fd .. ShP~:~: •• '~ S4.20

UNIVERSAL "LM" ATOMS Mount COIlveni~tJy in any po8ition. Rug5tm lugs may be IOOldC'red to chassi1'lltoP. anchorrd with len"'''''s. or e-:a:tlMtded through chassis-holes and bait . Hu ~p. arat.e POSltiV(' and n~2at.ive Indl. All uDiu are moisture-proofed . Wt .• 6 oz.

Sloe. No . M'd. Me. Y. SI :a:. NET 1 "·270 --8- ~O ~o2W 50.44

I ~:g~ J.~ :~8 ~~,.... :g~ 15· 273 8-16 4S0 l~xJ~- 1.18 19:i'3 1t-~6 ~~g I :1,": 1 :~~ 1 5-2 11 1 16-16 2S0 xJl'I LI8 15-2 8 520-16.25250.25 ''lid'h· 1 . 47 15-2S6 140. 20 .251250.25 1 1 Y .. d'~J.' 1.68 1.5-290 20 ISO t/ed'· .44 15-2 9 1. ZO-ZO 150 hZ'· .97

"EL" SELF-MOUNTING ELECTROL YTICS

Non .. in.ulated. ..elf -mounlin« zinc

~~~~IYat~d8 '~~~&b!~~1 f~~;~~ltha~ ~mbly. Connect.ion$ made to lua: lrrminals . U~ b3k~lIte mta: . plate bt-Iow for imlUlatiOQ. Wt .. B oz.

SINGLE SECTION

DUAL SECTION

-~~:::~ I ~g:~g I :~g I l~i: I S?:.871 g 15- 4S2 20-Z0 250 hZ- 9 15-483 20-20 150 la- .71 15-48. 50-50 150 11:2" .94

TRIPLE SECTION 111.490 1 '0.10.20450.25 hJ~'-I-S~0~'~9~4~ 15-.91 2()..20.20 400.25 lal· 1.23 15-.92 15-10.2 lSO.2SI I:l:2' .82 15-•• 3 20-20-20 ISO lal'" .85 15-49 . 40-20-20 ISO h2'/a w .97 i5::i9gl~(g. plate for inaulatJna ('an .. 3 c

MIDGET DRY ELECTROLYTICS Guarantred "mitr--lCiu" dry t:lC'ctrolytiC5. Per· fret for rrpla~meDu. Sued to 6t "mallest llpac:es W U I ul ted Sh wt 4 . n, a p •. oz. Stoc~ No. M'd. Wlle ·V. SI ... NET 15-170 - ,- ----.so-

'~l 4JC 15-1,71 8 450 '~I'· 18·172 12 '50 '~xl • ~3~ 15-173 16 450 1..,xl' • 65e 15· 17 ... 20 450 '~.2' • 71e 15-180 --4 - JSO Wl 35C 15·181 8 350 ~:;' : 41e 15· 182 12 350 W 15-1115 --.-250 ~ 2c lS- 186 8 250 nltl

' .. 35c

111·187 12 250 xt'.4 · H~ 15·188 16 250 4:a:1~ · 15 ... 189 20 2S0 7 :LP • ~R~ 15 ... 190 I~ 2S0 '~.2S •

T5-N2 , ---rso 'l-W,d '.4· 2F 15-193 8 ISO :tt::~: 15-19. t2 ISO ~5~ 15·195 16 150 'll.z'~ . 41c 15-19. 20 150 '~17 . 44c 15·197 JO ISO '~~, : FC 15· '98 '0 150 7c 1"' - 200 5 SO

~l 29c

15 ... 201 10 50 'litXl .. 32c 15-202 2S 50 'Yt6:a:1 .. 41c 15 ... 203 50 SO tK6:a:1' • SOC 15 ... 2 05 10 2S tt:a: 1 l • 29c 15 ... 2:06 2S 2S S xl • 35c

DUAL CARDBOARD TUBULARS 15·220 8-8 4S0 h2~- SO.76 15·221 '8-8 4S0 I~J • • 97 111-222 8-16 4S0 102 - .97 15·230 8-16 2S0

~l . 76

111 ... 231 -8--16 250 l:?g 1 5 "'232 -16-16 2S0

'~: 15-240 8-'6 200 . 68 15-241 lz..12 200 ' . .68 15 ... 242 1~16 200 u · :~3 15 ... 2411 8-8 ISO , 2 · 15 ... 247 2G-20 ISO I~~ : .76 15 ... 248 ·20-20 ISO .97 1 11-255 IG-IO 50 I~u • .59 .Scp.a.ratc poeltive and Deaathc leads.

HANDY ATOM KITS Save time- and mODey. A ff!'<W handy SpraaueAtom. kits will COVei' mOAt replac~meDta. 15-2.0. Specl.1 At.m Kit. Sis popular 8

h1~'y ~~';.~'k~~~~ 1 r~~~IN lT~~r2 ~3 8 1 5-2 81. Kit of 12 Sp~e AtonuJ. C onsisl.lS

~~rm~d~r~'5Jv:') i~i·o(~d~·l ~~v.t ~~t: • lb. NET ......... . ............... 54.25

TYPE LD ELECTROL YTICS

~~~~me~~ilR~:'u~~~~~!~ 8Ifil~~; ('onden",u for gnt~ral re-pla~ment OIond conlflruct ional u~ . Moderately priced. E.tra lIurae a Dd moisture-proof protection. Coo-8t'rvativel y ratf'd at 450 Yolu ,,"orkin •. and 525volts8ura;C'. Cardboard C"uoed, with easy m.ountJnn

~~d:e!\v:~a;:~h;p:~'~~~ l~·.tal

TYPE DC ELECTltOL YTICS 600 V . Pt'ak. 475 V. Wkll. Dry uaiu. Long pushbaC"k I~ad¥ and mtlt. fiances . "'t.. B oz.

~ ~ SIZ'--II'\~h-'r NET 15· 375 2 2'~. ~. I 0.68 15-376 .. 4'.1 . .82 15 ~377 8 .' . tJ EI' . 97 15-380 8 2 './lZ' 1 x II .97' 154381 4-4 4'.P.1' 1.29 15_382 U .' xl .. 11 1.41 15·383 8·8 4:~.1 p. 1.56 15-384 80.8 ~ u-.d.) 1.56

1.;-___ -'.10

FIXED MICA CAPACITORS Hieh-qualit)' coQdil!n~rlll in molc1~ bakelite ca.et. Motll-ture proof~. May be 1'Il.K'''~. FiS. A. haa IIOld~r lu~s auri i:t insulat~ for c ha5lOl!l

Fia~~h~°tb~~:3~ 't~~!1.~~ :3l~~~~ •. o~. XFM-l000 VOLTS DC TEST

FiC) . A. Working VoltoC)e 600 volh ..

N0 ' 1 Mfd ' l~ No . Mfd. NET

U-SOi .00005 SO. 71 u:m .OOJ 5 1.03 IS-SOl .0001 .7 15-512 .004 1 . 09 1S4SOZ .0002 .7 lS-sU .005 1 . 15 15-S03 .00025 .7 15-514 .006 1 .18

~U:~ I:~ :~ ~~:m :8'r U~ 15·.06 .0005 .7 15·sn .Ols 1.59 IS-S07 .001 .8 15-518 .02 1 .88 IS-sot .0015 .85 lS-5U .025 2.15 15 ... ", .002 .9115-$20 .0J 2.47 1<·SI0 .002S , 97 ............... .. ..

YFM-2500 VOLTS DC TEST Fig. A . Working VoltoC)e 1200 volts.

lS·SlOd)0005 SO.85 It:!: :~is s ~ :If 15'5JlI.OOOI .85

H:mr~ :n 1S-s.t0 .OOJ 1.4 t

1S-534 .0003 .85 tt~L~ I:H 15-53$ .0005 .85 IS-SoU.OO6 1.65 15-536 .001 .91 u:m :8'i8 U~ 1<-517 .OO'S 1 • I 8

ZFM-5000 VOLTS DC TEST FiC) . A . Workin9 Voltage 2500 volts •

15-550 'OOOOSI'O' 94 115.SS7I.00ISIS 1.47 15-551 .0001 .94 15-551 .002 1 .76 15-55,/.0002 .94 15·55' .002S 1.91 ~t:U :=~s :3: ~t:~~ :~ ~:~g 15-5$5 .OOOS 1. 3 ' 15-5'2 .005 2.65 1S-55oG1.001 1.? 8 ..•................

7FM-l000 VOLTS DC TEST Fig . B. Working VoltaC)t 600 volts.

is-iOO .00005 SO.94 15-'''1.004 S1.12 IS-SOl .000t .94

15-l1l005 U~ 15-S02 .0001 S _ 94 15-'12 . _ 15·'01 .0002 .94 1' ... 111 .008

I:U 15-&04 .00025 .94 15-'1' .01 15·605 .0005 .94 15""15 .02 2.00 15-606 .001 d~ 15 ... 111 .025 2.18 15-601 .00 1 S 15-111 .OJ 2.~8 15-"1 .002 1.12 15-511 .. 04 h~ 15-'0, .OOJ 1.12 15-''' ·.OS

BFM-2500 VOLTS DC TEST FIC) 8 Wort:ing Voltoge 1250 volts.

15 · 6113 :~SSI:8~ 1 !5""rOC?~ S 1.29 15-UI 15-UO .004 1 .41 15-6)2 :~W 1:8~ 15· ... . 005 I .56 15-61) 15-"'2 .006 1.71 lS·U' .0002S 1.03 ;::~: :::r ~:~g IS-US .OOOS 1.03 15-'1$ .00' 1.06 U::~*~S t8~ IS-U7 .OOIS 1.09 IS-US .002 1. I 8 15·'-41 .0Z5 4.41

9FM-5000 VOLTS DC TEST F19. B. Workin9 Voltag. 2500 volts.

1$-050 .OOOOS S I .03 1$,051 .0001 1.03 lS-CS2 .00015 1.03 15-55S .0002 t .0 i IS-UC .00025 1.0 15-65S .0005 t .0 lS-U& .001 t . 76 15 4 657 .ootS 2 . 00

1$'05' 1.002 S2.1 B IS-U' .003 2.53 15-"0 .004 2.82 1S-"1 .005 2.94 15-6'1

/

.006 3.09 1S·"' .OO8 3.38 ~s~~~' .. ~I •. _ •. ~ :~. ~.

TYPE SB DRY ELECTROL YTICS

Popul ar dual-!\C('tion cardboardtype tubular electrolytic cond~nsc" . Snve a.!I eltttlle-nt univ~r~1 ft-

r,IOI;«e,nrnhl . \Vilh inltulated W;f"iI! t'ads . Screw-t)'l) mounlin5: . ""or\'; -

~21 ~:I'A~;a!! 81~~ . "\~~~8 ~~I.taa:r.

No . I Mrd. / 5'" I N£T 15.ul ----s:8 1 'ada' S? 97

~~:~:~ It]~ l~:~~: 1 :1' ALLIED RADIO CORPORATION, 833 W . JACKSON BLVD_, CHICAGO, ILL. 21

* * AEJl.!!.Y.2X CONDENSERS PRS "DANDEES" MINIATURE

DRY ELECTROL YTICS

CARDBOARD TUBULAR TYPE PR

DRY ELECTROL YTICS NEW CARDBOARD

CASED TYPE A n('w OIrdbo:ltd ("3M'd ~Ienrolylit COndrD.eT with a .iaRI!!' ~w anfi metal ckat for ulli. .. ·enal mountlna:.

~~ ~~)' .h~~D\:;~~:'~t"R:t~J~7:u~ ("aD vertical·mOUDt drctrolytiC"5 such a...'! Ano,,'o:l typc-s E. F. G. GL. GL5. I. PC. PGM. etc. , or ~ulva· Ir o t in oth~ makp'S. £zhau.d ve test!! have proveD t hl:. condenMr to be absolu.tely depend3ble ia r v t"TY waY. Average slltpping wt .. 8 oz.

PRY 60G-SINGLE SECTION 800 V. DC PEAK~OO V. DC WORKING

~I~I $ 1 •• I~ f~::~~ : ~~!!~. $1 :JS

PRY 45G-SINGLE SECTION 525 V. DC PEAK_50 V. DC WORKING

:~:::~ IX :1::: so:,~ 13- 552 12 I d ' • 4 13· 55 3 16 I d ' 1 . 3

~~:::: ~ I ::: ~ :sB ...!.!.:!!. ~ I s4' 2. 1 2

PRV 4SG-DOUBLE SECTION 13·560 13 - 5&1 13·562 13-563

n I lHl"::: I SUi 16-16 1 :1[4" 1. 20-20 I z4'A ' 1.3

TYPE E UNIVERSAL I MOUNTING

Larce metal·can dry electrolytic •. Supplied with uotverw mouDtiDK I __

rinK for upriRht QlIDvc:-nro mount- -:--.-iDK . Multiple ~tiOa unltJI have -' individual IIttttonll with COmmon Dei<ltive Irouodecl to caD . .10 oz.

525 V. DC Peak_SO Y. DC Work;ng

CARDBOARD CASED DRY ELECTROL YTICS

nPE PBS h4IDGETS Space-A"("T mid~t uaiL .... HnvY cardboard contain~rs ; thorouKhly

~ber~~~~~n an:r3"::;~'3:ddW:!: ible le3th. Eact 8f!'C'tion of multipt~ uah!! bOll separa.le color ·coded lead9. Unit may De nl0UDtc-c1 In any po!.ltfon or slacked. by 0"'"lappinl metal 6aal~. Wt. 6 oz .

TYPE PBS·.SO

S O.76 1.65 1.29

U? 2.65

us V. Pta " . 4S0 V. DC Wkg.

OIL-IMPREGNATED OIL-FILLED TUBULARS

2000 Volt. DC workin.:.

~:Iir;:f~~~~!%U~r lransmilten. or blah "'oltace amplifit'fs and tNt equipment. Hennl!!'ti.:-ally ~aled in Inllulatll!'d metal cans. With mouating: strap. Wt., 4 oz.

Stook No _ M fd . S i ze NET i3-"fiO .007, 11-' 53C 13-3 51 .01 59c 13·3 52 .Ulf' 59c 1. 3 ·3 5 3 .ITI rc 131 - 31 54 .03 2c 1.3 · 355 .G4 • 2. Sc 13-356 .05 1~i6."" Bc

TUBULAR PAPER CONDENSERS

600 VOLT TUBULARS 13·280 .001 12c 13-

2881 .02 12c 13-281 .002 1 2c 13- 289 .03 15c 13- 282 .00J 12c 13- 290 .04 15c 13- 283 .004 12C 13- 291 .05 ISC 13- 284 .005 12c 13. 2921 .06 IBc 13-285 .- m :1.3 · 293 . 1 IBe 13- 2 •• .01 13 - 295 .2' 26c 13-287 .015 12c 1 3 -296 .5 35c

1000 VOLT TUBULARS

13. 3301·001 1 15C 11 3.3311, .01 ' 2 4C :1.3 - 331 .002 1 ~c 1.3-336 ,02 1 24C

:~:~~~ :~~ 1 5~ ~~:~~~ :r ~~~ 13-334 .006 15c . . _ .

MICA CONDENSERS

Low.eO!'l. mid,et condc~" built of ~lectrd mkaaod foil. MoIdni bakelite!' cuing impcrvioua to motl'ture .uld h~t. Tnted .at 1.000 Yolu. Sizes: 1467. l~ z I:~ • • '468. 1)(,. :IE ·W; 1460. 1% .. % .. Wt .• 2 0 ... : C... T'~' I T. ... T ••• , N£T

M.d . Uti1 UU UCI EA.

.(j(jijij:f iJ.OS-ll'.tlS ---u:i7o--.00005 1)-051 1) -0" u-I n

.000075 lJ - 052 U-OI7 U-. 72

.0001 n· ... n · ... 12< n-.nl

9< .00015 u -ou u .. OI9 11-1"

::=5 !! : ~!: !! : ::~ - ~~:--.0003' n · • ., 11- .92 1 5< 1 1l · 01~ 12 ::':5 !!:::: M:!!! l 8c !!~--< :~~5 It=tl:~:g;: ~:~ .. : .. : .0025 u -on U - O'37 => oc .003 . . .. U .. O'B ~X

UNCASED PAPER UNITS FOR FILTER REPAIR

NOD-inductlnlv \.\"Ouad, hiehIr.ld~. unc~J III!C'tiOD~. ncally 8haped and wr a~ in blacl;

:::1::~E::r:;.ulE~:tst~:e~i imprrtrnatcrl in h":h meltingpoint w.U .. 8· puah · b.-Ickcovered ":i~ ICiUb. ShPK, ..... e. 8 oz.

.00 VOLTS

~~:~~~~ t~ ~U~ : ~~ 21('1% lJ;~~':::' 600 VOLTS

~~ :~~~: kg ~~~: ~~:nt:~\t:·_ ..

53c 3 2c

6 6c 97c

22 FOR COM P LET E I N 0 E X 5 E EPA G E 9 6

CORNELL -DUBILIER CONDENSERS

TnE BR "BLUE BEAVER" TUBULAR DRY ELECTROLYTICS

!~::! hi~her ~~~: Ul"~~td'o\\~~tf:~~f~~ CO\'ered (:Ont:&incr Y'lead .. Shplt wt of 0% .. Stock No . M'd. Wkg . V • ~N£T ......-- 8 500 ~~~t~. $O:~~ U - OOI 16 500 ~ -.--.so- WI!;.' ---:<IT u -ou 8 .,0 ,01' . 44 u-ou 10 <50 j1dlio' .50 U-Oll 12 .50 ,2' .53 u -ou 16 450 ~'2'O.' .65 U-ots 20 "0 xl' • .71 u:m--.-~ ~:nr~· ----:35 u-ou 8 J50 . 4 1 U-D22 U 350 ~:1: .5 0 u-on 16 J50 .59 IT-O,-,- -.-2Sil' "'.>lll!' -:32 lot-OJ! 8 250 ~"~' .35 lot-OU 12 250 I 01' :H U-Oll 16 250 y,"'Ko' U-OJ' 20 2'0 ~:l~' .59 U-Ols .0 250 .68 u:ou--.---.so- tt:1Ko : ----:29 u -au 8 ISO :n u-ou 12 ISO 1-\>111;. 1'-041 16 ISO U'I~' .41 101-0" 20 ISO 2: l'loit , .44 u..au JO ISO ... 2- .47 U ... " • 0 ISO %&2 • .50 u-a50 -,- - 5-0- lj ,IKo' ----:29 te-DS! 10 SO ~:II1;: .32 U-I52 20 SO .35 U-OSI 2' SO :~~. .41 u-Ou 50 '0 .50 ~ 10 - 2-5-

~' iKo' ----:29 U-OCl 20 2' .Il-it' :n u-ou 25 2' :H:: u-ou 50 25 .44

BRL DUAL TYPE BEAVERS Dual common- OI'R;ath'(:' units . . H a ve 8- ID8U ' l...t~ .... i t~ It.-ad • . \Vith mouDtiac strap. 5 Ol .

I ... 0 450 .78 1O-on 8- 16 .50 I .... J~. .97 te-'75 8 - 16 250 ~tl .. .76

~::::~ It16 m xl~' J~ 1&-011 16-16 ISO ~:i: . 68

H::U ~~ig H8 tti~:: : ~~ ~::~:~ ,~fo ~g ~:~-A: : ~~ U -a'S 5-5 25 ~J:l a· .44 U -09C I~IO 25 'ltxlV." .50

AEROVOX HIGH.VOLTAGE MICA

CONDENSERS Hra~'y~lllY ml~ (Ondenttera made of hilll"t

~~~.t!ra~':e~r;fJ'~~i~ able fo r all h i ~h .voltag(' or R.F. bY'Pa"~uh-e·

meats. Sralt:d 10 bahllte c a lles 3~ala8t all cUmate and temperature condhion~. Metal ey('ld terminals tap()f'd for 6-32 machine ~re'\o\". Moi~ture proofed; protected agaiDst shorte. Can be I'Ilack -mouated . Size: I~" d ,~ .. . \Vith mouat'ng -'Crew!'. \Vt.. . 1 oz.

TYPE 165_1.000 V. DC: PEAK

H~i~~li:r 4NE

4T

(ii~i* 1 ii'ls~~it 73~"J ,00025 1~"' .02 1 • 32 13-" • . 0005 , -... . OS 2 . 73

TYPE 1651-2.500 V. DC: PEAK

~ 150 1"-0"1.002 1' 0.94 71.t7&I.00025 ( 7)·910 .006 1 . 23 7)·t" .0005 7l · tat .0 1 1 . 97 71·"8 .00' 65e 7)·tl2 .02 2 . 79

TYPE 1652-5.000 V. DC: PEAK

7]~"5 1·00005 1 65C 171~t" I ·OOI r 1.06 71- 91' .0001 6Se 7)~9t0 .OO2 1.59 71-917 ,00025 7 3e 7l~9t1 .006 2.4 7 71-911 .0005 88e 7l~992 .0' 2.88

• c

ROUND METAL CAN TYn DRY ELECTROL YTICS

TYPE EB-fIG . A 525 V. DC P ... k--ast V. DC Work'nl

"Ieh ..... c1e Inverted type dry ekctrolytic CODd enaen. latC'mal tIotttions are complete ly Insulated from metal contaia.<'f' . S inglC' mouatin~ t~ wltb Insulated wIre l("ad s. EXa'J)tional _lability . minimum leaka~. Av • • hpI , wt.. 8 oz.

Sto.~,~, 14-160 8 14-141 12 1"-14~ 16 14-:1.43 ~

Siu

I~"n' • .4 .. 11 .4 :,," I I d~" I

NET

SO.76 1.00 1.12 1.15

TYPE KR "C:OIolPAC:T"-FIG. Compact etched ·foU dry elecVolfi!tc CODdea-

Mr~t1e:.:i l~il::'!'ba1~~ ::ar':~ r~~~~~\~~~4s~;: 4S0 V.lt. DC Werkln,

'. m7~ 8

~'I I SO.76 5· 1S 21 It-& ..

U~ 1.~172 a-8 21 x4 .. 16-173 a-16 2 d " 1.68 1"·17 .. a-a-8 J z4 ..

~:~~ 1. .. ·1.75 9-9-18 j z' .. 1", 1.7. 9-9--18-18 JY!:d " 3_73

TYPE JR Etched foil mcH 8-turr-P.'"oof "handy· mike · capacito r. in c= a rdboa r d boze!l. U nl \' er1i&31 ~pl~meDta for a ll radio _u. ~8'ft permit .!! .tack-

~fo~=~C~i~le~d~~tI~~~~~t~~a;~~parate 52S DC: PEAK-jl50 V, DC: WKG.

MOLDED MICA CONDENSERS Molded anita with India ruby mira di.lectric, speda l "..a.·treated atack . brO",1Ii ~krlitr CaM:, a nd podti \'C' terminat connect ion". Tcstc-d at 1000 V . DC (OD unlu up to .OOJ mId .; 6OOV. trat OD hlsher capac1t1rd. Sh pg. wt .• 2 oz.

Typ. SW_ llh,·.'A.".'A."

U~:;OI ' =;51~'.~:1 1~~~5 1 :cll~1 ~:.~: U M I0l . 0000J .15 U-to& 0002 .12 14·102 . 00004 .12 U-toJ 00025 .15 U·tol . 00005 .12 U-I01 IXXl4 .15 U·to4 . 0U01 .12 U·1Ot ,0005 .15

TYPE 1 W - 'I. ".'1. " , 'I."

t::~~1 :~ I SOJ: I ~::g~ I :~ I $':~: U-122 . 0015 .111 U-t2I . 006 .44 U-121 . 002 .24 UMI29 . 008 .47 U -124 . 0025 .25 U~tlO . 01 .S) U-t2S .OOJ .2'

DT "DWARF" TUBULAR 'A'ER CONDENSERS

EKttPtionally reliable. noa·laductJve, small all -purfJlOSC coaden~rs. w.u:.1mfbC':\.Dated and

~~~'~C'~n1I1aj~~ ~~~~~. &Ad' ct~e,:!~~ protection to thHC' coaden8ef'll. Low PG,,-er factor and hilh DC rC'sistan~ make "Dwarle"

~~a~~~d:n1~~2dy:"u~:d~Y'~ 3~" 400 VOLTS DC WORKING

No . Mfd . NET No. Mfd. NET 10-210 :or----

U·U7 -:00- SO . 11 U-211 .01S u ·nl .1 .1 101-212 .02 12( u·nt .2 .J U-2lJ .025 U-2" .%5 .1 U-2U .OJ U - 241 .5 .2 U-2JS .04 10.2<2

11.0 _3

U~21' .OS

600 VOLTS DC: WORKING

"DT" VIBRATOR CONDENSERS 2000 V. DC: PEAK-1600 V. WKG.

O il. lmprecnated and pr~ paper tubub.r CODdeft!len especially suited for U~ In vibra tor units Withst..and high peaks ShPK wt "oz ..

N • • Mfd .

'''T Mfd.

::''''"1 i'i=iQO -:oooJ' --- 4·109 -:oor U-1OI .0008 U~ltO .0075 .2 U-102 .001 U-ltt .008 .2 U~lOl .002 26( U-J12 .01 _2 U~lO" .0025 U·ltJ .02 _2 101-10$ .OOJ U -1U .OJ _2 14·10, .00< C·llS .04 _2 U-107 .oos 1'·11 ' .05 U-loa .006 U·lt7 .1

TnE EH CARDBOARD DRY ELECTROLYTICS

Lan'e ~lectrolytics desigoM for hea v y~ duty o peration. Have low.powc:r factor and hiah leakage rr-sisl-

fl:~:e. ~~~.: ~~ia' e~·ltlet tab!!l. With"-

.32 .44

color-coded lead,. Clearly .tamped with polarity. capacity, aDd ratina. Wt .• 6 oz. 525 V. DC: PEAK_50 V. DC: WKG. St ... N .. , Mfd. , 51,.

l::~:~ T :~:}H:l~" 16-3.2 8-8 4' 'I~IW 14-3 ~ 3 8-8 " leads)

"SILVER MIKE" CONDENSERS

TY PE l R. Molded silverplate mica COndr-Drw-T'S tot U~ wh~Vfl' hi£h stabi lity i. ~uJrrd. ]000 VolOl DC tnt Siu t ~ II X. II HI" 2 oz.

No . _Mfd'I ~ACH ~I~ EACH

~~~ISO:il '~157 .0004 SOJ~ '-lS' .0005 U-JS2 .0001 • 4-15'i .0007 .71 U-lS' .00015 .1 .~J" , .0008 _71 U·1U .0002 • 5 '-151 : .0009 _79

~::~~: :~5 :§S 4-"21.001 .88

C: -D C:APAC:ITOR IoIANUAL 256-p;ure book.. the 194. edition . U,Idng n-placcmeat conden~n for almoet evU'Y radio. A"k for It ,,;th yoU!' a.ezt orda fol' Corn~U-Du biUer condensers. 37-013. C~D Manual--oorM"t FREE

ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL 23

~ KNIGHT CONDENSERS "TlNY.KNIGHT" MIDGET DRY ELEC T ROLTTICS

Stoo. No . Mf4 . w::ov.j 'l.~: 2NaEcT

to:36s - -1 -10·366 2 450 I Z" )\,' 31c 10·200 4 450 I ~ •• ' K." 29C 10·201 8 450 I ',4"a'K.' 3 2c 10·202 12 450 1 ~ ... tMe· 40c 10·203 ' 6 450 2 V. " lI: 'A · 48C 10·204 ZO 450 114" . '~" 53c 10-21.0 --.----:mr-I ""'" Yo"

27C 10-211 8 l50 J '!i"x% ' 30c 10-212 12 ~17.4 "J: lll · 37c 10-220 --,-

l~g I :r~: 2 4c 10-221 8 27c 10-222 U 250 t 7 · xlA ' 35c 10·223 .6 250 l' "xn'" :~~ 10·224 20 250 2Y. ·.~· 10·225 40 250 2~ · :t" " 49c 10·230 --.- ISO • 'Ao"x'!i. 22c 10·231 8 ISO t ' .... · . I ~; •• 24c 1 ·0-232 I Z 150 l~"Xl'-M" 25c 10-233 . 6 150 J '/a"x'Y." 30c 10·23 .. 20 150 l'A""II,," 32c 10·235 JO 150 :~::!~. 35c 10-236 '0 150 35c ~-----r -so ~""""24C 10-2.1 to 50 ::~ :::~; ~g~ 10-2"'2 25 50 10-382 5 25 2".",' 24c 10-250 10 25 1'04". '4" 22c 10-25:1. 2$ 25 l 'A .. z s" .. 27c

DUAL CARDBOARD TUBULARS 10· 260 8 ·8 450 n,, " ~I" \ 53c 10- 261 8· 16 450 Z~". . 72c 10-2G5 g.'6 Z50 2 "1l 1,4 . SSC 10-266 '~l~ :z.o;O 2 "ll ' " 6Se 10-270 200

2 "''''' 151 C 10-271 ' 12· ' 2 200 il :;~~.. ~~~ 10-272 16-.6 200 10-275 2G-20 150 zH"''''' 55c 10-280 I G- .O 50 2 "' lES/I· 43e 10_385 5·5 25 2""J[~" 36e 10-386 IG-IO 25 2"J["." 34e

Deduct 10% on o,.d.,.. fo,. 10 0" Mo,.e Knight C.rdbo.,.d Tubular Elect,.ol)'tlu.

KNIGHT BATHTUB CONDENSERS

S on-inductive. mOisture-proof bathtub d~n1M'rll with mle'tal shell . Ofti&aed for lona IH~. W ill la.lIt fo r yean if operated withia

~~~d,~o~~~Co:l:c·t ~~~'~I ~J;-;.t!)'f~~ ~o or mor •. A v . • bippin b wc:iGhl, 6 o z .

(TYPE AI

Stock No . Mfd . Voltl N Er ~--.I--~~IC 10-502 .S 200 3 e 10-506 .S .300 3 e 10-510 .0 5 400 2 e 10-511 .t 400 2 e ~g:~:~ : ~~ . t :~ ~~~

ITYPE BI

~1~12°'.!!.-1~ 10- 520 1.0 200 6Se 10- 521 2 .u :!OU GSe 10-5 ~5 I.tI 4un 5-1c

~~: ; ~ ; :r~ ~ ~i~

STANDARD REPLACEMENT DRT ELECTROL TTleS

The!'t' Knight condenser. are adaptable to

~~w~e~al~~~Y fi~' t:~aii!tb~:a~~: .ap~:,a~!ti~ 3C"Curatcl )-' ratced . Have 6· c:olor-coded . in · !'ulatcd Irad!' . Standard round type~ have fibrrboard i n Aul a te-d contain"!! , and mount in y. . hole. Average IIhippiag weight, 6 01:.

525 V. SURGE_50 V. DC WKG. FIG . A, ROUND CARDBOARD

~1~'1 Size, Inch •• I NET ~g:~g~ : : ~ ;: ~ SO:~? 10·102 12 4'A1 J[ I !Ii .80 10· 104 8-5 4 1,4 x I y, .92

FIG B. STANDARD CARDBOARD 10·330 I 2 : ~::~ ~ SO.31 10-33 1 4 .41 10·332 " 4~XI )oi~J[ '" .46 10·333 .0 " J[ t y' J:I 'A .62 10·334 .6 • •• Ii'!' Yo .78 10-340 4·. l'W·t: .69 10·341 ' · 8 f J[ll~IlI !.1l .78 10·342 84 4 J[I lllX. .82 10-343 8· 84 411J[21 1lI~ 1.19

FIG. C . MIDGET CARDBOARD 10-350 10-3 51 10-352 10-353 10-360 10-381

ne. 8 . '00 V.lt Peek US V. DC. Wkg.

_0-_50 I • I 4~"~' '~ ISO•59

10-151 8 4 1 J[I d' .71 10 .. 152 8-8 4 1 .1 ai ' t.13

INCCO PRECISION OIL FILLED CAPACITORS

® FINEST INDUSTRIAL UNITS

Pred~on cnJinee-rr'd to enctinll sJX"Ci6catlonlf for all Indu.trial and comm~rctal app lil..'Mtions. ThC'lll! nOD-currosive capacitor. ItJl" _It -water sub .. rr~on proof. non- inductively \.\"Ouad and h~rmelically ,,("aled . Buill for OOUtJnuous operation uDder ItoevrTe conditions . Han! rJ:tre mcly low PO,"-'CY.actor and hi&h h .... kal{1:' ~.lan~. Con_n.·atlv~ly ratal . Selectnl dielectric im-

~A&~~:t~~ ~!~I~!~t'I~~{:.1 ~' ~~~ SA aupplif:'d w ithout mu:. bracket • . 10 oz . GAo are tubular liin~le-l'to le mouatia.g type. w ith hardwar(' , Shlppial w~iKht. 8 o z.

__ ,..-..:.F"-,IG . A. TYP.::E...;Bo;A-,-_,.

No. Mfd ' IW

: '" Size NET i1-OOO - .I- "'iii) 1J:'M.s2 V.· St.OJ 11·001 .25 600 h'J'Ks2',1· 1.0G 11-002 .5 600 h'''''.2 IA. 1.1S 11-001 .1-. ' 600 1J[' h.d~r 1.~

n:g~~ ·~tjS :: ~ ~: 1;t ~2~: t~~

11.010

1 11-011 11-020 11-021

11 ..0221

FIG. 8 . TYPE SA

KNIGHT PERM·A·SEALD PAPER CONDENSERS

Dt-lII i ~ nf"tl for lo n.:- li ,·ed :ct'n·ic C'. tJneJ[~lIrd fur ?ui ld1 na o r tco:pairi n a: . Non-i nductive- wi nd inl;l'I; Id ra l (or R I-' UIl4"' . t-:n(irc un it i,. ~aTcd in wax mold. Pre\"C'nl!' breakdownlt due to moi~ture ablllOrpU04. \ Virc lead !'! ZY1·. S hpg. w1.. J ol! .

D~duct 10% on orden 'or to or more.

600 VOLTS DC Stock No. M i'd.'-- She EACH ~I-:-OOI VIJ;I~· 10-"'8 1 .002 VI J[ I lW.· 10-"'82 .003 j1"I\o' Se 10-"'83 .IJO.I ~ll l '~· 10-"'8" .005 ) J[I~·

10-"'85 .- ~= : :t: 10-"'86 .0' 10- 487 02 ~.I%·

1O-4ii"8 .03 IJiz . l % " ~~::;~ , .<H '!i :.; I !/. " lOe .05 'Ii :l.I 'I, · 10·4~1 .06 !.1:J[ I V. · 10·492 \ .1 'liI lI'2" I

f2C"-10·"93 .25 J;' J[2~· 17c 10· ... 9 .. .5 lJ:2~· 24c

400 VOLTS DC 10·"'50 .00 ' ~:::t: 10·451 .002 10-"52 .003 ~= : :t: 10·453 .00, 10· ... 5 ... . 005 U J; I ~' . 10-"'55 .006 J[1 ~" Se 10· ... 56 .0' J[1~" 10-457 .02 lioz'I\o' 10-458 .OJ ~::~: 10-459 .04 10-460 .05 ~IY.· 10-461 .06 %*1,/. · ~ -.-1 - ~J[I '/, · JlO"C 10-483 .2$ 1).oW.x2 Ji.· 12c 10-46" .5 _2",' 17c ~5 1.0 h 2Y.· 24c

200 VOLTS DC

PERM·A.SEALD CONDENSER KITS Contains 12 COIldeDse1'1I listrd above. 2 Ibs.. KIT No.1 . Con .... ts of 1 .ach:

M'd . Volt. M'd. Volta .001 40n .004 bOO .OOJ 400 .005 600 .005 400 .0 ' 600 .006 '00 .0.' 600 .001 600 .05 600 .002 600 .1 600

10-5"0. ..95c NET ..

KIT No. 2. Con.l.h 0' t •• ch:

M'd. VOlt_ I M'd. Volta .1 200 .05 .. 00 .25 200 .06 400 .5 200 .1 ... 00

1.0 200 .25 400 .01 "' 00 .S 400 .OJ f.OO 1.0 400

10- 5"'1. NET ..... . ... $1.45

UNCASED PAPER SECTIONS

~c:hr:::tJ:~~is~a;;:iRIr:~ ·b~~~f:~ inll . 6 " Irad • . C a D be ulled to rcplacl" ,1 ,.rK'tive 8ectioll1lofmultip1cuDits.. WL. 5 01: .

1

200 VOLTS ' .. AD VOLTS Mfd . No . I Net No. I N.t -:s ro:iiO 22c 1i=iiS 24e 1. ' 10-101 29C 10-"6 3~C 2:.1!. _~6£l l0.1G7 6 e

'00 VOL TS 1000 VOLTS . :tS I lo •no 12 .. C 1O. 175 13GC . 5 to - Ut 31 C' 10· 11' G-lC

1.0 lO -172 43c IO· U1 78C

24 QUALITY EQUIPMENT, QUICK SHIPMENT, PERSONAL SI:RYICE

'iltald .. ( A PAC ITO R S CORNELL·DUBILIER

"TJU" FILTER CONDENSERS

J'i"h('~t·quality C"O.d~n~ for indu"trial aod tran"'mit ·

~:l!.i~r,~~!~i~! ~::.';,~~~ ~ ~~ii'II~:'lIJ:~:n~:::~~~h l~;! or hl('at. Dylr.;:u)()l. m.lld~ und4."T C .R. 1)3tf'nta. has ('S:l'('lIent wlr . hC"alin~ prutW'f'\ir-:o an,1 ,\ill not oll.idlzt' ; !lupcrior to

W:U:, tar, oil, etc . . or any ordinar)' dlelf:oclric

~=~~:r~: 1;":~?:~.~~lltr:~kl;:t }~r·~~~~~h~t~; lnvenn.! InouDtin!.:. Av. !lhpo.:. \n., 2 lbel.

Sto~k Ho. Mfd . ---wio. V . N [ T - 73-600- - -,- --.00 $2-:-47

73-601 2 600 J.OO 73-602 4 600 .88 73-60$ , 1000 2.65 73-606 Z '000 1. 53 73-607 4 '000 . 41 7"3-GTo- --,- ----rroo- - :f.-'8 -73 - _11 Z '500 4.41 73-61.2 4 1500 5.88 73-615 1 2000 3.88 73-616 2 ZOOO 4.59 73-81.7 , 2000 6 . 35 73 - 6 20 , 2500 5.64 73-621 2 2500 9.11 73-62 5 , 3000

IU~ 73-626 2 .1000

S toc k No . MId. WIr. .., . V. N ET 73 - 630 2 600 S 1.94 73 - 631 3 600 2.35 73-632 • 600 Ui 73- 635 1 '000 73 - 63& 2 1000 2 . 3 73- 640 0.5 ,500 2 . 12 73-641 1 1500 2 . 35

FAMOUS GENERAL ELECTRIC PYRANOL.FILLED CAPACITORS

Efficirnt dur3blr tran~ mittina: conden ....... r" of tJw be.,.t quahty . Th ...... · am· de1UC'n ",;11 "ivc eoll:crop-. t ional ....,.vicC' lind 10DIC lif~ Filled and tn-ated ,v;th '·yranol. :I Don·in · fl:;unmahle. aon-czplosivc "u~lan-:e of unu,"uaJ die"ll'C'tric quOllitiC1l. ifrrmC't· it!a)ly -....Ied \\1tb por· C'e1.un lftminal bu~hin&~. F.quippcod \\ ith mou ntiaac

mauntin!: .• li.:b vo,~~it:-ta~d'O,rra»::I:t~:'.~ Stock No .

j. T 7pe \ MId. Wkg . V . I NET

73· 700 I 21FI I t.OO IS2 . 47

n:~~~ ~m ~ I ~ Ug ---1-----------73 · 706 23FII 2 1000 3.53 73 · 705 21FlO I 1000 I 2.65

73 · 707 23FU .. 1000 4.41

73-7iO 2.Wi01-'-~I~ 73 - 711 2lF21 2 1500 4.41 73 · 712 21F21 "' 1500 6.00 --- ----------73 - 715 HF30 I ' 2000 I 3.88 73- 716 21F.11 2 2000 4.59 73 - 717 21F11 .fI 2000 6 . 35 --- ,--- ------ ---73· 720 21F39 I 1 2500 I 5.64

n:~H d1m i ~gg lU~ G. f. "yrottOl Tron"",i"ino Copodlor. Gre GYOIl·

ob/e In lo,;no. up '0 .s ooo V. ~C. Con.ult '" fot pf>Ce5. d.li¥~ry and J>liof-ity required.

MALLORY CAPACITORS

Tl(

SPECIAL VALUE 2 MFD. 1000 V. OIL·FILLED CONDENSER

II~rmt'tically·~alC'd. oil.iaapreoanateod 2mld .• 1000 volt traDsaUt· Una conden.~r in a ","al caD. Con!lt'rvativdy rated for Ion" life,

tl~!~h ~n~; 1~~I:1~t'yC~d::' bl't,~~: Equippeod "..;th univ~w mouat · 11110: brKIc.~t for uvrllht Of' IDve1'tt't1 mouDUmc. SiZf': 1 s 1 V. s 5V,;

~':r-'i;;-:; : 2~'ET .. .. . S2.7 5

AEROVOX CONDENSERS HYVOL ··05·· SERIES

IDO'ealiinKly popular for all tran .. -lI1ittA7 rc-quifttnt'nU;. T~ un it. ..

::~~;~i~~-'t:iJ:T ,~1~·~r.~: vol" oil , All vohace talln,:" are conerrv aU\'f! for c:oa(inllou", Ol)("ra· tion, lI e'flnelicalh.- ~al....i In round mrta.J coatOlineu, 1.C'8d lrrn,inall, rqulppcd 'nth lock nut iLn<1 l'lOkJrr hut" are at.lt-quatf'ly in .. ul a tllf!d by mr-ans or hh.:h·trn. ion pillar .. , MOUnt" IIprilll'lt or in .... rtftt . An ru:-rpllon:1lly high · ltr:uleo trll .... mi •. lia!: condCD.et". \ Villl rin~ mount.

S toc k N0 ' I~ r~ , M'd . ~;:-v 7~ - 00 l.'i I 6011

~ ~::~~ 60S I ! I ::: 73 - 905 1005 I 1000 73-906 1005 2 1000 73 - 907 IOU5 .. 1000 73 . 810 ! iIii;'t- --I -~11OO 73 - 911 IlU$ 2 l.~hU 73 - 912 1505 ~ 15'1. 73-915 200S I 1(1)U 73-916 2005 2 2(MI' 73-820 2505 TsIil 73-921 2505 2500 73-'25 lOOS .tooo 73-828 ~ 1005 .\000

HYVOL "09 00 SERIES lfC'rm~Ica1ly ~aleod in \\'~Ided ..t_1 caD; uDivt'r"<ll brac:kd for uprilht or iDVft'lrd Mlllunl· Inl, DIC~Jectrlc b N:'1~taJ haper. ImpTt'lCnatN and filkd with "lIyvol." thr DC'W luprr_ dlde'Ctri~ oil For all he-avy_ duty requirC'mC'ntli. Con"'C'r-

~b~!~·~:Jla~a~:!.i:'Dd t;!c;!i~~~; with hC'.,,"y-duty -aldu lUIS ,

NE T

s 1 . 76 2 . 2 9 3. 18 1. 94

U~ 2~7 3 . 35 4 . 2 3

~J~ 4. 23 7. 06 6 . 3 5 7 .76

Stool!: No . TYP. I~' Wke , V, ....!!!! ~~::~~ = ~ I = $2 : ~6 73-932 609 4 600 i . s8 73-935 1009 I lOOn I 2.65 73-93. 1009 2 1000 3.53 73· 937 1009 " IOO!) 4 . 41 73·940 1509 1 ISOU 3.18 73 - 941 15()Q 2 15011 4 . 41

73-.42 "'i5'Oii"\- '- ---rniJ 1&:oO ~~:;:: ~~ 1 ~=: ~;R3 73-950 2509 I 2.S00 5.64

n:;;~ I ~ I f ~~ U? 73- 958 JOO9 2 JOOO 110. 5 8

Tron,,"hti,,o copocifOti ar. curff!nlly O"OiIO&l_ , only on priorif;'" For best a.r" ic . p leole e .. tend your high •• 1 outhorized , r ating,

SANGAMO MICA CAPACITORS Iflab-quality. moWed hak~lite I1'lk;a type' capacitof!ll. For iDCIustrial appllcaliolU. UIC'd ezt.e:Dsj vdy ia traD~mittcT'S. laboratoriM. ~tc.

Thrt"old\.-d holC'l' for 6>-J2 !lCrru', JK"I'mll ~t~kia~. Fully lasulated to pe7"mit mountlnl: ditft"t1y Bakelite c .... 'ICd: Tuby·mlca di~lC'Ctrl~ , .",c'Curat.e 00 ~ha",'I. or paael by IDe-aD' of the 1 ~.;a.r . lypco vlithio 10~1D' Fig. A . ,",vC'u.le .hpl. "'t... 2 0&. boJf"S.. 2 :'Iolder lUlL FI,. H. ShPl;. wt...l OL

600 Y. DC WKG . 1200 Y. DC WKG . 600 Y. DC WKG. 1200 Y. DC WkG.

u~:o=O .::;5 Is:.~~ ~ ~~Is~.~:-n · o01 .0001 .U "' -Dll .0001 .C7 7&-OD2 .00015 .n 14 , 012 .0002 .C7 ,. -001 ,0002 .n U -OlJ .0002S ,., 7&·OD4 .00025 ,ct U-oU ,01)05 .47

7W05 .0005 --:u-~ ~ ~ ''' -OOG .001 .n n-Iu .002 .11 ," -007 .0015 .... "' -'17 .004 1 .0) 7' -001 .0(11 . U " -111 .005 1 .15 U -e'lS .0025 .50 7' -Ut .OO6 I .U

'ji:QQ, -:ool ~ ~::::: :~ tu 701·.11 , f)()4 .5' ~::m :~ :~~ 2500 Y. DC WKG.

l'-IU .008 ." 7 . -150 I 'OOOO~ u:ou ~ ~ JC -tsl ,0001 .n JC-IU .02 I ,D 1 ..... 52 ,00015 .55 701-017 .025 I,SD U·OS) .00025 .iI

~:::t; :~ t~: ~ ~= ::~ It-oS," .OO2 1.0

U·17I. San,8me 1'-0571 ,003 I .n rnlst ... clips . 701-051 .005 2. tS Net. per .. " • .. •• c U~5t .01 UI

~~ '!!: 1&-100 .00005 5D.12 ",·101 0001 .3 2 1&-112 .0002 .12 U-lt) .OOOU ,12 U - IU .0001 .3 2 U·ID5 .()O(W .n U·ID' .OOO5 .n 7i=I'OT ~ -:n-7"·101 .001S . 32 U-In .002 . 11 U·11D ,0025 .... ]t·llS .003 .n U-U2 .(){).fI .n 701·111 .005 .n n:ITi' ~ -:sr U-US .OO8 .U "'-IU ,01 .1' U-11' .01 5 .sa 701 ·111 .02 1.0l l' · IU .025 I.U 701 · 120 .OJ I.n

Mica u~citolJ onlv av.;'ab'~ on bi,ltr.t ptiotity ratings.

No. MId. , NET 701-13 0 --:oiiOO5 m1 701-131 ,0001 .• 7 701-11% .0002 .n 701 -1)) .0000S .61 U -1U ,0005 .n 7oI-US ,001 .5' 701·131 ,002 .11 701-137 '-:003 1.Oi U-U' j 'OOf. I . ' l U-ln .005 I . IS U-UI .OO6 1 .1S U-Ut .OO8 t . '7 U·U2 .01 1.12,

2500 Y. DC WKG.

'.-150 .oooos n .s,' H·lSt ,0001 . 5' 701-152 .0001 .71 U·U) .00025 .71 U-IU I~ .12 7T-ITf .00' -:if 7'·15' .002 t A7 1,·117 .003 1.'" U-n. .OO4 2, D' 70·''' .005 2.1$

ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL. 2S

~n~~~ VOLUME CONTROLS

CaLHo. M ••• Cat. Ho. L ... CIIl II ... T.per With CRl

Swltoh Type Ohml No. Switch Type

n:ii'O NFi1i6 5000 1 27:ci25 Piii06 27-001 NFIOl 10000 I 27-026 PF107 27-002 NFlOO 10000 3 27-027 PFIOO 27-10) NFI08 10000 4 27-028 PFI08 27-0U NI09 10000 6 27-02~ PI09 27-005 NFIIO ~ 3 27-0]0 P FIIO 27-0o, NFUl 15000 -.-n:m PFm 27-007 NFU2 2000u 3 27-0]2 PF1l2 27-00' NFl1J 25000 I 27·0]] PFllJ 27-009 NF101 25000 3 27-03. PFlO1 27-010 NtH 50000 1 27-035 PIH 27·011 N11S 50000 + ,27 .• " P11S 27·012 NI16 100000 I 27-017 PiT6 21-011 N117 100000 6 27-018 P117 27-0U Nt02 250000 6 27-039 PI02 27-015 NII8 500000 I 27-040 PU8 27-015 NI03 500000 6 27-041 PIOJ 27-017 NI041 Mu. 6 27-042 PI04

TAPPED MIDGET RADIOHM5 L... CRL M •• , Tep. With CRL

Swltoh Type R... R .. , Swltoh Type ~ N'Ti19 250M 7.SM 27·070 PTII9 27-051 NT ... 7 250M 125M 27-071 PTUl 27-052 NTI48 350M 75M 27-072 PTl48 27-053 ~T120 500M 150M 27-071 PTt20 27-054 NT149 500M 250M 27-0U PT149 27-055 NT150 t Mrg. 200M 27-075 PTt50 27-055 NT121 1 Mra:. 300M 'i'l-07i" PTl21 27-057 NTISI 2 M~&. 200M 27-0n PTISI 27-051 NTI52 2 :\i~. 400M 27-011 PTl52 21-059 NTI22 2 M~I. 600M 27-171 PTU2 27-051 NTI53 2 Mea:. IMeg. 21-010 PT153 27-061 NTI5-t 2 M~K. IMea:. 21-011 .PTt54

~ETSEAI~e:: 88c l :~t.ri:~~~:$1.18 MIDGET SWITCH COVERS

Und~rwrit~rs' Appro\PCI bakt"lIt("mldletl'tW'it~h t'Ov("r . -For U!'e with battery-radio circuit .. Suap-on t)'t>e for ~a!!y attachment. \VL. 3 oz:.

No. Type Kind NET

~~:g;~: ~:~~ ~~~ . ~~t~~~?::: : ~I~ 27-09 3 . KI69 SPST.(Dummy Lua.> . 35c ;1:7-094. KISS. Four PoiDt .. ....... . . 35c

rnrnce exclu:'live nOD-ru quict. IImooth rotatioD .'''.-'~"' . • ''5. 1 ) .... dia. and ". .. deep. I .haft en~nd~ JJ .... from CLWO. It'Dlnh for pu"b-OIl or art-screw type knoM. control' are carbon type. ~ belo,,· for eJtplanation of taper. Supplied with mountinl nut. Wt., ,-. ewitch. 5 oz.; with ~witch. 7 oz: . CRL typ. numb.,.. ,I".n b.low an the n •• CRL numben. You ma, order b, theu or by the old CRL numbers.

Cit Ho. N.w Ma.. Ta- Cll No. New Le.. CRL Rei . per With CRL

Switch No. Ohml No. Switch No.

~ A-IOO 500 1 27·2]0 B-IOO 21·201 A- IOI 1000 1 27·231 8--101 27"202 A-1m 2000 I 27 .. 212 8-102 27-203 A- lOJ 3000 I 27-2]) 8·103

21 .. 20' .4.-104 -.000 1 27-2]. ----a::tci4 27 .. 20$ AF-IOS 5000 I 27-215 8F· IOS 27 .. 206 A-I06 5000 6 27-2]6 8-106 27 .. 207 AF· I07 7500 I 27-2]7 8F-I07 27 .. 201 AF-I08 10000 I 21-211 BF·I08

~ ~ "'i'iiOOO J 27-2]' 8F-i09 27 .. 211 AF-1l0 10000 4 27 .. 2f0 SF-1I0 27-nl A-ttl 10000 6 27·241 8-lll 21-212 AF-U2 15000 3 27 .. 2042 8F·1l2

n:21i" AI'· t 13 TsOOO ..- 27-iiJ "'iiF.W 27-214 AF· 1I4 20000 3 27·2" 81'·114 27·215 AF· tl5 2.~ooo I 27 .. 2.5 81'·115 21 .. 215 AF· 1I6 2,!i:OOO 4 27 .. 2.6 8F·116 27 .. 150 AF-iT1 25iXiO ---:r 2Mrr 8F-117 27 .. 151 A -t1 S 50000 I 27-176 8-IlS 27 .. 152 A-1l9 50000 6 27-1n 8-119 27-151 A-120 75000 6 27-171 8-120 '"27=iSi AF ·111 75000..- 21-iH 1i"F-'i2i 27-155 A·1l2 100000 I 27 .. 1" 8-122 21-155 A-t2J 100000 6 27 .. 111 8-123 27-151 A-12.1 150000 6 27 .. 112 8-U4 2J:fij" A-125"'2iiOOOO --r 27-113 -a:T2S 27-15' A F - 126 200000 4 27 .. 114 81'-126 27 .. 160 A- I27 250000 6 27-11' 8·127

~i~!~ 1 ~~ml i~ 1 i mm, lim 27·165 A·lll 2 Mf'a. 6 27-191 B·lll 27-157 A· ll-t 3 Mf"IiI: . 6 27-192 B·I H

L£SS I WITH SWITCH. 59c SWITCH. 88c I EACH . _. _. _____ E.;.A_CH ... .

TA .... ED RADIOHMS Standard unl .. ,,·lth tap" for tOD~ comPf'n",a' tJoo. Taper No. 10. See eJtPlanation below.

27-247 1 AT-U-S 12.5°OOO110 127~260 I BT-U5 27-241 AT- U6 500000 10 27~2lil ST·136 27-249 AT- I .1i I M'"IiI: . 10 27_262 BT- 1l7 27 -250 AT· US 2 Mu. 10 27-26] BT· DB

LESS SWITCH. I WITH SWITCH.

;,UH ..... . 88. ;fJH .... .. $1.18 STANDARD SWITCH COVERS

Underwriten' ApprovPCI. Bak~lite in!uiatle'd ",,,itch mountle'd on I4nap-on type plate. Con· '1rrt any plain Radjobm to switcb tYpe.

No. Typa Kind NET 27-270. KIO SPST Standard . ... . 29c

~~:~~~: ~g ~~~it~=:: :::··· · ~~~ ~~:~~:: ~:f ~~~i8!~~;t~ui::: ~~~ 27-275. K15 .. Point (for Batt. Srt~) 35C

Compact. td~al fOr portahl~ and auto R1:~. Shaft will take ~ithrr pu .. h-on or .taDd;"!rrt lIr't scrrw knobs. Sil~. s"""- d ia... 21i1" deep. le.s ~witcb . Shpa. wt .. 4 oz_ SPECIFY TY PES AND VALUES DES IRED

L!~I';- I OI~~' 1~515C:;\7 ' I~t;~~~c;s LF-l01t 25M 1.· 106 I \-fea:. EACH

I::~~ Igg~~ t::S~ i ~~:~ 59c L-IO.f. 250M

"ELF" RADIOHM5 WITH TAP CRL Ma.amum Tap $tocIiNo. Type R .. htanee R .. IUanee 27-3"'0

t+:a~ ~l.8~~ I~~~~ EACH u:m : t:~: ~t: 88. LT- 154 2 M~s. 200M Speelf,

t+:~~~ i ~::::: ~t: Tt~:::d 27-.. 351.. SI»ST S\\·itch. NET .. . . 29c 27·350. SPST Switchwithdummylul.35C

-Taper 4 . tTuprT l. All othen ta~r 6. See below (Or explanatioo of tapeu.

Tb~ control!! are Identical with the ftandard Radiohms 00 thJ, paae but ba9'e 2 Vc· shalL Grooved n"uy \1.. Ellsy to cut shafL See nplanation of tapers below. ~ S'-I.1tcb. May be converted to lwitch type by addioa any .witch covet" a. listed ja ccnkJ' column. S oz.

No. T yp. Ohm. Taper 27-100 ~ IiiOOO - - 1-27-]01 AS-140 25000 I

NET 27-302 AS-141 50000 I 27-]01 A5-142 100000 I 27-104 AS-I4J 100000 6 UCH 27·]05 AS-14.fo 250000 1 27~]OG AS-US 250000 6

59c 27-117 AS-146 500000 I 27-]01 AS-147 500000 6 27-]09 AS-14S I Mq. 6 27-nl AS-149 5 M~a. 6 27-311 AS-ISO 10 Mea. 6

WIRE·WOUND RADIOHMS Similar in drtden and !liz:e to Standard Radl· ohms in crnter column. but wire wound. Have Jin~ar ta~r. 1A'~s switch (~ crnt~r column for switches). Rated at J wath. ShPI. wt.. 6oz.

CRL R ••. CRl R ••• CRl R.I . Typ. Ohml Typ. Ohml ~ Ohm.

'"""VIoo --2- VliT """"40 Vl28 """"f5O VI02 4 V1l6 50 \'F129 1000 VI04 6 VI17 60 \'FIJI 2000 VI06 8 VIIS 75 VFIJJ 3000 VI08 10 V121 100 VF13-t 4000 VI09 15 Vl2l 200 VFIJ5 5000 VIIO 20 \,125 300 VFIJ6 7500 \'111 25 VI26 400 VFU7 10000 Vtl2 30 VI2i '00

EXPLANATION OF TAPERS Th~ resi!!tanC'e curve of • volume rontrol is a. Important as lu maximum rrsletanC'e. Th~ proper curve permita best pos..'l.ibie results from an}' receiver or amplifier circuit or laboratory equipmenL Standard applications of f'ach taper are a.!I follow!!!: (I) Voltaae divider with uniform resistance change. U~ a!! r~genrration or l'("1"~n grid pot. (3) Antenna and cathode biaa control of OM' or two tu~. no bl~ft" CUfn'nt. (4) Antenna and cathod~ biOi!! control of one or two tu~ with blrrder cumnt. \ViU carTY much mor~ C'tJITe'Dt in C - bia!l than tapt:'r J . (6) Audio end. t~nDa or tOD~ control. (to) Audio Ind volume control taPprd for ton~ compensation.

26 FOR VICTORY BUY U. S. WAR SAVINGS BONDS AND STAMPS

Trlllh "A itioo CRL volumor Cont.rnl Guide. O nT 20.000 l i~tin&:t (J500 are- ~.). .... ropn CRL CODuol a Dd UC.h er d ata .. gi ven 'or each model r~dvrr. Thi. "alu a ble G ui de- is o llrrr-d ' rn". U:c- wiU, li !'lingOl belo ..... to idenLih' CftL t~ DO. for

~o.;~O,~~ s.t':'t ~8R~rs.

EXACT DUPLICATE CRL VOLUME CONTROLS

For rnct d uplic;,.\t·So ~ )'our ' CRL Guide to fi nc1 t )"J»e No. of control you ~uifto .':.We will tmppl )' eKact d uplicate contro le wlaile they Ia.. .. l. Ait("rwar d !l. ll tandard cootrole of !\.arne characteri.ti~ will be- furnisht"t.! . Minor tibaft ad j u~tm(' nlll w ill mue thettC adaptable.

f)'Rp~ S~ooc:.k I N ET

"'i4.Oi6 27 ·n. io.ii 25 ·426 27.515 1 .• 7 J() .. OIO 21- 085 . 1& 61.(J42 2I-U' 1 . 11 ;0 06J 27· 7&2 .1& 72- 11 2 27-510 .S8

i Z- 159L 28·1n ... 72-160 28-110 ... 7 2-16 1 21 · US ... 72-162 28-106 .&1

n:i7f 27·181 --:u 72-181 27-76' .11

i 2-205L 21 . 111 .n 72-206 21-lU .11 14-503 27-621 I .U 7" -509 27':102 l .n H-514 27.71)4 1 .• 7 7 "-51 7 21-71K l .n 74-523 27-7s.i 1 .U 7. ·524 21 -010 1 .• 7 74-526 27 - 661 1.U

7W59 ""i7-9ii' T.i1 74-579 21-'" 1 .4.7 7 .... 580 21-1112 1. n 7"-600 21-ocn 1. n 75·5-13 21-172 1.76 75-544 27-"1 1. n 75·545 21-101 1 .. 76 75-614 21. 250 1 .76 78-007 27-761 . 88

101096J 21-.71 . 11

iOi09s9 v:iiI --:ii 1210006 27-"' .88 1210900 27 - 51' .sa 1210902 27-," ... 121090CS 27-1'" ... 121 0912 2. -001 . .. 1210913 21- 006 .11 12 10914 27 - 6&5 .SA 1210915 27-n7 .11 121 0916 27 · "3 .U 2021001 n:;oa TIi 2021905 21-'0" 1.11 2021906 27-n1 1.18 2021 909 27-117 1.11 2021910 27-'19 1 .11 2021911 27-175 1.18 2111905 27-515 1.11 2211017 2I- Zl5 1.11 2211029 21-%11 1.11 2211900 21-114 1.11 ffii90i 2f..7il Wi 2211902 27·723 1 .11 2211903 27·"3 1 .11 2211904 27·511 1.11 2211905 27 · 72.. 1 .18 2211906 27 - 121 1 . 11 221190; 27-IH 1 .11 22219()I 21 ·11' 1.11 2221903 27 _871 1 .11 222 1904 27 -157 1 . 11 222 1905 27·n1 1 .11

ffii"ii6 n:i7i 'T.ii 222 1909 27· '2) 1 .11 222 191 0 27·911 1.11 4Ot 0943 21- D51 1 .• 7 4220900 27-"1 1.U 5011004 27·110 1 . 76 9011005 27-6" 1.11 D -255 21·001 .as 0.256 27- 672 .11 1).257 27 · 1$2 .U

DTs8 21-iSJ --:Ii U · 259 21-'~ .11 U -263 27 -5" . &S E · 2.H L 27·"0 1.11 E-2l4L 27·a.U 1.11 E-2.16 27-lst 1.11 E-2J 7 27 ~ 1 5 1 1.U E . 238 27 -• ., 1 . 11 r .... 24O 27· I U 1 .U E-l4.J 27·617 1 .. 11 E-153 21·011 1. 11

~)'''p~ S:,oo~· NET

~ 2f.ffi" Sl . C7 F - IM 21-512 1.41 F-I66 27-571 I .U F-161 21 - 512 1 .4.1 G-120 21- 050 1. 7~ G-12S :n-S1S 1 . 76 G-1l6 28-017 1.76 G-128 21-152 1 . 76 R- IOO 21-101 . 11 R-IOl 21-'" . 11

~ 27-57 .. -:sa R-IOJ 27-115 .sa R-l 04 27-11. .as R- IOS 27-11' .81 R-IOS 21-151 .11 R-I09 27-671 . sa R-I I0 27-n) .sa R-1I1 21-2U .sa R-112 27-165 .n R -Ill 27-891 .sa R-llt 21-1CU .18

"'R-'i'i5 27 -I" -:ii R -1I6 27-161 .81 R -1I7 27-1$.1 .81 R -1I8 27-1" .11 R-11 9 27-162 .11 R-UO 27·671 .11 R-121 27-". . 18 R- ll2 27-"6 . 11 R- tH 27- 675 .11 R-12" 21-U5 . 11

R-IlS 2i="ii'f--:U R-t26 21-eu . &1 R-1l7 27-161 .11 R-128 27-1" .11 R-1l1 21-211 .11 R-1J2 21-"1 .11 It-Ill 21-210 .11 S-IOO 21 -102 1 . 11 S- IOI 27-6" 1. 11 S-102 21-nO 1.18 ~ 21-illl."ii S- I OSL 28-152 1.11 S-108 21 .!"7 1.11 S-11 1 27-15!1 1.11 S-1I2 27-100 1. 111 5-lIl 27-110 I.U S-1I40 21-6" 1.11 5-115 21-215 1.18 5-116 21-216 1.18

;5-117 21-21' 1.11 S-1I8 28-2CO 1.11 S-120 28-2" 1 . 11 S-121 27-115 1.11 S-122 27 -15' 1.11 S-12j 21 - 160 1 .11 S-124 21 - '55 1 . 11 S-IlS 27-166 1.11 S-127 21-2U 1.11 S-128 2I- 2~ 1.U s..1 29 21 - 210 1 . 11 S- I l l _ %1 - 005 1.11 S-1l2 %I -OU 1:ii S-135 2&- 202 1.11 $o1J6 21 - 201 1.U 8-1.17 21-212 1.11 5-138 2&-UG 1.11 $0139 21- 225 1.11 8-140 2I-2Oot 1.11 T - I OO 27-1'5 1 .• 7 T - IOI 27-1~ 1.U U-loo 21·2J.t 1 . 76

U -101 2I·on 1.16 U -IOl 21-015 1.15 U- IOO 21·15) 1. 76 U-I04 21-:'1 1.76 U-I06 2I-n.t 1.15 U -I07 21-012 1.76 U -I 08 28-016 1 1 . 76 U-I09 2&-oH 1.76 U -ItO 21-205 1.76 U -III 21 · 201 1.75 ... .. ... ..

Very ruued. idr-a.1 f or m an )' eommerclal UlleS IJuch a" m o tor lIDt"'Cd con trol . ehan C' i n.:: ra tr- r r-a:u lator. etc . ;\11 2" in dia . ShOlf t ~' Ion IC. 'I. ' d ia. With poiote-r k no b . ShlppiDE wriEht, 1 lb.

2S WATT UNITS No . ' T),p. Ofoo_ No . T),PI Ohms

27 -ua uoor - 2- n:m-4ii50 150 27-.n 48_ 6 27-•• 48250 250 27-4.02 ,,8010 10 27-." 48400 400 27-.0] 4801$ IS 2J-Ua 48500 500 2J-U. 48026 2S 21-.11 . 8810 1000 27-COS "8050 50 21-4.1 2 .881S 1500 27-,gi 48100 100 21-4.1 ] 48850 5000

~:lH .............. ..... ...... Sl.18 50 WATT 75 WATT

27 - oUO 48025 1 25 27-US \ -41271 50 21-411 48060 60 21- U6 41278 150 21-U2 41U 51 150 21_457 41279 JOO 27- 4.1 ) 48501 500 21-451 472&0 SOO 27-U" U 8 11 1000 27 .. . n 4128. tOOO

~:::~: J :m~ j~ ~~~tf'~ ,~s,:,w.~;~;,~ ~flH . s 1 .47 ~UH ... . . S 1 .76

OHMITE VITREOUS ENAMELED RHEOSTATS

Uoderwrlteu' Approved ~irr-wound rheo.ta t, for radio and power control circui ts. Metal contact Bhar. COWM:rvatively rated. Require!l Iii' hole. 3 termina.l , . With kno b . Devth re-

?OU:~od~lit. r:4!:~ • 1 MI'; modd K.. I ~ ... Sb"". wt .• 1 lb.

Tr:.ec ~ ~o .W;.!!;.-Tll~HH so Watt-No. Ohml

$2.94 7.-ua 1. . S2 . 65 n-lSQ O.S 14- 121 2 14- ]$1 I 14.- 122 6 1.- JS2 2 U·12.J 10 74 -]5] 4 74.·124 15 14.-35. 8

2.65 U·US 25

2.35 U-lS5 12

14.-126 50 U-lS6 22 14.-327 100 14.-157 50 U-UI 175 14.-151 80 "'-12' 250 14.-11' ISO "'-Ut 500 14.-]60 225

~::!:~ I~f---U-]U 300 7.-162 500

~::m~~~~ 14.-161 ~~ 7.-164.

~::m~~ 2.79 " - 365 SOOO le- ) " 10000

100 Watt-Type K

2.79 2.94

~::m 01 $4 41 ~::l:: tf.'l $4.12 No. Ohml £ACH I No. Ohml EACH

1 •• ]12 3 • '. - 117 500 ,,-, .. 1~1-412 7.-, .. 10001 .... 4.41 74·314. J\ . MALLORY "E" POTENTIOMETERS

RATED 9 WATTS He:avy-dut)· . w ire-WOUDd potmUometen. ConlW!rva tJvely rated a t 9 watta. Recommended for experjmeDtal \\"ork and lest ~ulpment . Can be mounted OD paaele

~:~:IIV~~h~~o~~~hMi!t~: : Overall diameter i!l 2~'Mounu in %' bole. Contactarm grouodrd. Wt .• 10 oz:.

MALLORY "C" RHEOSTATS

\\'i re- ..... o uDd CODuol. con !tCrvath'dy rated at 2 .. wat u . I dea l fo r u .e i n li mited I pa~e . CODt a~ t a r m i, " ro uDdctJ to ahalt . Diam· r\ l'1' : 1 ~' : lA' abalt H - • IrDd !l %' from "'bullhlnE. ThrH' lua: termina l». 8 oz .

__ N_o_. _ ~ ~I~! 29- 700 C 6R 6 . 58 29-701. CIOR 10 . 45 29-702 C ISR 15 .37 29-703 C20R 20 . 32 29-704 CJOR .JO . 26 29-705 C 40 R 40 .22 29-706 C50R 50 .2 29-707 ClooR 100 .U

EACH

44c

nPE " c" POTENTIOIolETERS

29- 720 C 6 P 6 . 58 29_721 ClOP 10 . 45 29-722 CUP IS . 37 29-723 C20r 20 . 12

~::~~: g~~ :g j~ 59 c 29-726 C 50P 50 . 2 29 -727 ClOOP 100 . 14 29-728 C200P 200 .1 28_728 C400P 400 . 07 ~ C'iMP ---.-M --:GiS SO.73

~::~ ~~ ~~t:~ ~~ :~5 :~~ 29-733 C6MP 6M .018 .88 29 - 7 3 4 ClOMP 10M . 0 14 .88 29-735 CIS"'P IS'" . 0 11 ~

29-750. Oial Plate. 0-10. NE T .. . .... 1SC

MALLORY "TRP" TAPPED CONTROLS

g;;:d~D~: . 1~du: two aule . ..... asher. a nd KTo uDdtcrtahaal. - N o ~ro-

i~i~~~:t:;~!dl,t~P~6~~: 1 Hou "Iott f'd ahall for

f:rtra~':" ..J.!i~OWI~ are T3~r I . 1...eae av.i. t eh .. !!S . Av • • hPl' . wt •• S oz .

Stooll M fr ' , . R.. . T iPped

29~;2 0 T~~l O~m~ I t Oh~: 28-121 TRP602 60M 4 M 29-1.22 TRP60J 150M 110M 29- 123 TRP604 350 M 20M 29- 1.24 TRP605 350M 70M 29-125 TRP606 500M 100M 29-128 TRP601 500M 225M 29-127 TRP608 1 Mt'1I: . 200~( 29-128 tTRP609 I M~. 500M 29-129 1'RP610 1 Mq. .lOM 29-130 TRP612 2 M~. I SM

~::~~~ tt:~::t 23~~' ~~: 29-133 TRP61S l Mp&. 900M 29-134 TRP616 500M 60M 29-135 TRP617 60M 12M 29- 136 TRP618 2 Mf'I . 250 M 29 . 137 TRP619 500M tOO-200M 29- 13. TRP620 2 Mr&: . 900M

~::~:~ .+:~~~ 2'.4 l-:;Z' 2~~~~ 29- 141 T RP621 250M I SOM 29·142 TRP624 2V. M eM. 2SO-S00M

NET EACH ....................... .

00 OOC

MALLORY DUAL CONTROLS Uoive:nal Dual Replacement ContrOl!!. Standar d dl a DDd sh alt flu all type kDO~ . Diameter. I ~' . ·wtn:-~'Ound type. others QIl! carhop uDiu . Switch ill not iDCludrd with control- u.r I'taDdard attachable !103IH)O

21t::g~~U"~~~~,"~~~ i8Abl~.S 1 .47 Mfr' • • Ohm. Ohm. USE

,~;. ~;; ". s"':lr I-:Aa=t.-:S"b""u""at;""'-::-;B"''''''-. OE 10M 5M Ant. Bia" or Scr~ .GG 10M 10M ADt. Bia." o r Scr~ Gtc 10M SOM Ant . Bia" o r ScreeD LL 100M 100M Aud io In P . P. LM 100M 150M AudioTool!orScrcto MM 250M 250M Audio In P . P . UN 250~{ SooM Audio and Tour N N 500 114 500M Audio LD P . P.

ALLIED RADIO CORPORATION, 833 W . JACKSON BLVD., CHICAGO, ILL. 27

UNIVERSAL VOLUME CONTROLS

~r~~~h Vko~~b~£;~~~l:..:g: t"f. nut,.. and KJ'ound trrmlnal . \\' ltb detaChable end COYer plat~. aDd 3- channel Bhaft .... -h.ich can be t"ruUl), cut to requl~ size. Wirl!' wound ty~ are ratt"d at 4 watts. All control. are listed LESS SWITCHES. fSlottrd Shah for auto ~u. :\\lirl!' wound . !Wire wound with adjustable bia,. , All otht"n ("'arbon. -Have rQfTDal bia .. re-silltOrs . 1 Yz. dia. E~" . 5 oz . NOTE : Shipped I .. s •• Itch unl •••• I'dered. S •• IIsUn,.f

;.~~e~A·CbH~~~: .. ..... 5 9c STANDARD UNIVERSAL CONTROLS

No. Ohm. Type T.per

~;:g~~ ---r ~ l~ 29·002 10 S S IV 29·00] 20 S T IV 29·004 30 : U IV 29·005 6O:V IV 29-006 100:W IV 29-001 200 : X IV 29-001 400 SA400P IV 2't-009 500:A 1 29·010 550 fA550P IV 29-011 1000 SA1MP IV 29·012 lOOO - 18--- -1-2'·Oll 1000 :UC500 II 29-0U 2000 iA2MP IV 2'·015 2000 lel2 1 29-n6 2000 C II 29-017 3000 AJMP 'IV

~;:~~; ~~ n~12 h 2'-020 3000 107 VII n·021 5000 IA5MP IV n-022 5000 Y5MP IV 2'-02] 5000 eE 12 I ~ 5000 -IE-- - 1-1-2'-025 5000 tE7 Vll n-02' 7500 -F12 I n·027 7500 IF II 2'-021 7500 'F7 VII 2'·02t 10000 IA10MP IV 2'-0]0 10000 Yl0MP IV 2'-Oll 10000 -G12 ( 2'-0]2 10000 IG II 2'-0]] 10000 -UC501 II 2,-OU 10000 IG7 VII

No. Ohm. Type ~ TsUOO -..rrr-29-0]6 15000 I"

r,:g~: ~~ I~:OMP 2'-03' 20000-Y 2'-040 25000 Y25MP n-on 25000 e) 2'-042 50000 Y50MP 2'-041 50000 K12 ~-ou 50000-K 29-045 75000 Z12 ~-04G 75OOO-Z n-047 l00000 --viOOiiP 2'-048 100000 L 2!t-On 100000 eUC510 29-050 150000 UD02 2'-051 200000 Y200MP ~-052 2S0000 Y250MP ;n-D53 250000 M ~-054 250000 tUC511 2'-055 250000 -UCS09 2'-05' 500000 Y500MP n-051 SOOOOO N 2'-058 SOOOOO tUC512 ~500000~ 2'-060 750000 UC503 29-0Gl I Mes . Yl000MP 2'-062 1 Mea. 0 2'-063 1 M~. tUC514 29-064 2 Mes. P 2'-065 3 M~. UC504 ~-066 4 Mea. UC505 ~·0G7 5 Meg . UC506 29-IGB 5 Mea. UC507 29-069 9 Mea. UC50a

Taper -I--II VII IV I IV II IV I II I II IV

I II I IV IV I I II IV I I

- II-I IV I I I I I I II I

EXPLANATION 0' TAPEIS TAPER I: Audio or ant. sbunt. TAPER II: For cathode circuit&. TAPER IV: Standard linear. TAPER IVA: Modified Unear. TAPE R VII: Ant . and cathode bia!l For volume control ~placementa ID suprrhets U!llf' taper No. I.

~ TyPe 15 MISP 20 M20P 25 M25P 30 ~fJOP 40 M40P 50 M50P 60 M60P 75 M75P

100 MIOOP 200 M200P 400 M400P 500 M500P

TYPE M POTENTIOMETERS Typ. M \\'lre ..... ouDd Potentiometers are e~P«iaIlY PD.

~~~t!·~ a:~l rf~~~a.!PP~i~k.~~:~rl;-h~ha!r~~: ~oen~~·~t~~·~;r~~~/4 :~t~~~e:!Ji_':::"4:f::: lated. Ha!l 2940 total rotation; 281 0 effective electrical

~~:~::·V~.;;~:z. I~:~i:.e~~~:\,: raee~. ~~i!t r~z db ..

-.~ 10

•••

Typ_ St.ock No. ~ 29-400 600 M600P 29-412 ~ 29-401 1M "MTM"P" 29-413 29-402 2M M2MP 29-414 29-403 3M M 3 M P 29-415 73c ~:::g; 59c ~~ M4MP 29-41.

M5MP 29-417 29-406 ""'iO'M"" MIOMP 29-418 29-407 15M MISMP 29-419 29-408 20M M20MP 29-420 88c 29-409 25M M15MP 29-421 29-410 ToM M50MP 29·422 29-411 70M M70MP 29-423 51.18

TYPE M RHEOSTATS Stock No. Ohm. Type Amps. ·Stock No. Ohms Type AmPS. 29-451" T Mo5R US ~r~g 20 M20R~ 21"452

MIR 25 ~12SR 40 2 -453 2 M2R 1.4 -4 I JO M30R . 31 2 -4 54 3 MJR 1 15 ~ -412 40 M40R . 32 2 -4 55 4 M4R 1 00 2 -4 3 50 MSOR . 28 2 - 4 56 6 M6R : ~ ~ :a3~ 60 M60R . 26

~B:a ~~ 10 MIOR 75 M7SR . 23 15 ~11SR . 52 29-466 100 MIOOR . 20

~!lH .............. ... ......... .. '" ... ... .. ..... ....... . 44.

NEW MIDGET TYPE CONTROLS MidW:l"t ",placement vol· umec..'OUtcollifor U!M" where ~pe'dal llhafts and couphD&!'! are UDDec.'e8" ary. Channel .hart and in!lert 6ts all type knolls. Compact and ruued . Midgl't IIwitdws. listed brio ..... . eawil)' attachffi . Ji . dt"t"p, 1~· d ia. ; j. shaft . Shpg. wt ., 5 oz. 29-154. Speelfy Type Numb ... and V.lue

:;T£~C~~~~~~ . 5 9c Typ. Ohm. Taper Type Ohm, Taper Type Ohm. Taper MRi'4 500U lv.A M A33 50000 -1-- M A44 2SOiiOO -I -M R18 10000 I M R34 50000 II M R45 250000 II M R19 WOOO II I'JI R35 50000 IV M R48 S()()()(M) J M"2'O 10000 IV M R3& 75000 I M R 50 500000 1\' M R21 15000 1 M R37 75000 II M R51 750000 1 M R22 15000 II M R39 100000 r M R53 I Mell . I M R24 20000 I M R40 100000 II M R55 2 M ea. I

:.~~; n~ & ~ ::; :~ (" M A57 3 Mell . I

MIDGET SWITCHES FOR "MR"" CONTROLS 2.-200. Type M26. SiD8le Pole Sinsle Throw. 2.-201. Type M27. Double Pole stoale Throw. 29-202. Type M28. Sioa;le Pole Double Throw . 2.-203. TJ'pe M2l/ M24. 4PST. NET . .

UM UNIVERSAL MIDGETS Mldll" C'ODtrol!l, ,uze 1~· dia .• Va· W .• I~

~u~~~~ms:~~o;~de:.~ ca~~eaf~ attachable midl[et !!I .. ,';tch~ . Shpi/: . wt .. 6 oz. NOTE : \\'~ can IIUp-ply controJ~ and IIhaft" for moat _til. Specify make. model Gumbel" Bnd tube lineup 01 radio and send deposit with order for fa. .. teat aervlce. ~i =-Type Ohm. Typ_ Ohm. Type Ohm.

~~~~; lJMTi4 ~, - UM133 50M UM144 150~1 UMtt! 10M UM134 50M UM1U 2S0M UM160 1 Mell. UM11, 10M UM135 SO~ UM149 250M UM161 1 Mea. UM120 to'" UM137 75M UM160- 250M ~~~~ 1 Mrs.

1JMi2T 15M UM138 75M UM161 350M UM163 2 Mea. UM122 15M UM140 100M UM164 500M UM165 3 Mt"a. UM124 20~f UM141 100M UM166 500M UM180: 100M UM128 25~f UM142 100M UMU7e 500M UM1'1: 2 Mea. UMU9 25M UM143- 100M

-Clutch type-----Got for attachable SWitch. tRillbt·hand " .... Itch actJon.

:r:;:n~~s!e:bo~~af~; ~~yot~Ide:~~~;tic':!.~u~Ety~~ .v:.~ .5 9c TYPE TM TAPPED MIDGETS

Similar to UM type dlrectly above. but have tone control taP. Be IOure to epecify SS ty~ Plua-In Shaft wben order1DII. ShippinJot wdllht. 6 oz.

Typ. Ohm Tap. TM'220 250M 50M TM221 250M HOM TM222- 250M 110M TM22J- 350M ! 70M TM224- 500M 100M -=rM'22'6 350MI1OM TM226 500M 15M

~~~~~ ~~~I 1(l«J~ TM230 5OOM.150M TM231 500M 225M

Type Ohm. Ta p . \ Ty~ Oh m

J T. ~.

TM232-""""'SOO'M ffi"M Tiiii5 2 Mea. ----sM TM233 500M 60M TM2 ... 2 Meg. 15M TM234 I Mea:. 65M TM2U 2 MeR. 60M TM238 IMe&. 125M

1

TM2 .. ' 2 Mea: j250~{ TM23I I Mea. 300M TMUI 2 Mell . 6OO~f TM239- IMeg. 300~1 TM260 2 M ea: . 125M TM240 1 Mell . 200M T M251 2 ~1rK 900M TM241- IMrg. 200M I TM252-12 MII!'II. 900M TM242- IMe&. 450M TM254 1 Mea: .! M TM2403 I Mell. 450M TM257 J Mell. ~{ TM244 t Ya MeR: 200M TM259 2 Me~ . !\t

-Clutch type_ No provision for switch.

!:;.fn~~s!-:b;,~af~ ~ ,~~:es~n~ i~ .~~~~. ~·.~e.~ .7 3c

TYPE "55" PLUG·IN SHAFTS For U8Ie witb UM or T!\.{ control!!! above. Designed as exact rPplacemente for applications requlrioa: prt.odetermined l~ngth with special C'Ouplil1g

d~!;ri:::~b~o:h~~:.l~t~c~uf~e~~ \~~~~!:. ~e:e~atoa:~~:~;~oo ..... hich

~:c'tt~.O. TY~. ~'. ~:~ : :: .6: ... ~. ".~' . ~~' . ~~'. ~~'. ~~ : ~~. 27. . 1 5c 29-625. Type 3. H. H. 15. 21. [ACH . . .. '" . . . ... . . . 21 c 29-640. Type t7. 19. 20 EACH .' ..... ... . . .. . . 29c

Mallory Radio Service Encyclopedia--4th Edition

Your npla.C'1!'meut part worrit'S are OVf'T ..... ben YOU usc tbe Mallory Encyclopedia. Over 400 pagal of nceiv~r listing". co\·· eriu.g thousand" of modeld-. Gi\'l!'fI tube compl~mt!'Du and lte"rVice nott'S. also volume coDtrol. vibrator and condro!M."T' requirem~nu. Indudt."!I all oriRinal factor\, part numben and all Rider manual

3'7~~~: \~~T~ . I.~: ..... .... 95c

.JL IiliiIiJ

28 MAKE ALLIED YOUR RADIO SUPPLY HEADQUARTERS

~ VOLUME CONTROLS HANDY VOLUME

CONTROL CABINET

Sturdy QOD. mC'talllc IRe Vol ume C uull o l Cabtnet .,. included Free with a "pc.'C,:ial a&tOrt.meo.t of the POpular .Ino. of TyPt' 0 UaJVl"rllal CODtrob. Thto cabintt. attrOKtively tini"hcd ia. silveT', blue

:4~:.~~~:=~~~~b1~~:rn~ unci haA J h3.Ddy drnw(TS for ... ,ritchr",-. a~.oriefl. and OIN7 email paru. A~-.onmrnl iGClud~

i~~C:~9b~>'!:a~f'rC~t~~ !:!:ck ~S~~~~~~a:~~~~ ~~ch!:: CoDtrot",uppl~ are moAt popular valUft. This stock ~D.:lblee YOU to ~vic~ up to 75% of all control rrplacemt"Dt.I' , You pay oDly for C'ODttol~ and a c cf!sl'Orlt.- cabiDC.'t i:l F R EEl Shpg, \Y'\ . , 7 Ib,.

30-295. NET .. S 14.67 IRC ALL·METAL

POWER RHEOSTATS UDlqu~ C'O Ds tru Ca tion C'uts o perati ne t ~nlper ature!' ala mOl'lt In half; dJ.i pate ~t more r-apidly. Rat· i DSA b~ oa~mper·

atun:: r i K' with maximum toad di,l1ibutcd over tGtire ekmt"nL Flat docksprlD& Il;"d J)Oo!tith'e (:QUtact txotw~ rotOf' arm aDO calter tnmiD;)), With arrow polD~ knob, 25 \"r' . uDit 1 "~' dia,. JKa'

~~!n~ginD:lp~!~~ Sh~!.2~~r. ~ilb: 2S WAn

Stook No . 0 ... m . EACH ~ 6

30-251 to 30-252 ;U 30-253 50

~g:~~; I~ $2.35 30-256 2~O 30-257 350 30-258 $00 30-259 750

~g:~:~ ~ 2.65 3O-2e2 5000 2 . 79

50 WATT

30-275 1 6 30- 276 16

~g:~n I~~ &2.65 30-279 225 30-280 JOO 30-281 500

30-282 IIOOil 2 79 ~~--.-~g:~:: I I~ 2.94

IRC GUIDE

TYPE CS AND TYPE D VOLUME CONTROLS Thne controls take': care of allllO!lt all replaCemftll requirement,.. For e ... · cry

:l~~~e~ f~~ bS ~~~~h: urne re :ustance and taper.

~~::=~:,:~~~:~ub~;:~ dartt.. " 'C .,hoilJl ship the

ryu!~3.~~ ~r~~e~~~;!: :~ ~~:~JI~crx:.~;~~h~~rd

"haft. faNI)' ,'ut to me. Typ. D Mid,.,. : diaml"tl"r i~ I ~"; ("Q!'I(" Ilepth IrM !'IWl tcl'l. J ~"; " 'ith ,""itth. l~" . sbndard attathable !hvitelu'" art!' li.t~ at ri&ht. SllippioK w~iKhl, type CS, 8 oz . ; type V. 6 oz.

TYPE CS STANDARD TYPE D MIDGETS Stook No . T.pe - - 1~ ~'l~--30-010 -.-.:w.r A 500 30- 12. Otl -IOJ 30-071 11 -108 A 1000 30-128 Oil - lOS 30-072 tI -1tO A 2000 30-127 1 Otl - tlO 30-073 11 -112 A JOOO ~g::~: 1 EB::n 30-074 II -Ill A 4000 30-075 11 - 114

A 1 5000 30-130 Ott-1I4

30-076 IJ- II" C 5000 30-131 01l-lI 4 30-077 11-115 A 7500 30-1 3 2 O i l - liS 30-07. 11- 1. 6 A 10000. 30-133 011 -116. 30-079 IJ·1I6 C ' 10000 30-134 DI3-1t6 30-080 U-116 D 10000· 30-135 0 14·116t 30-081 J~11 6 F 10000· 30-136 01 6- 116 30-082 U-tl8 o 15000· 30-137 01~tl8 3 0 - 083 16-118 TYP'E FI~ '3'Q':'i'3ii" 01~118 T~E 3 0-084 16-119 CS F 20000· 30-139 glt:g~t I~ 30-085 ~!:ng S~h A 25000 30-140 30-086 o 25000· 30-141 014-120 SWitch 30-0B7 1 ~120 EACH F 25000 30-142 01~t 20 E:ACH 30-0SS 11 -123 A 50000 30-143 gg:gn 30-0S8 1.J-.123

59c C 50000 30-144

3()-'Oe O' l.l-.ii5 o 50000 30-145 014- 12J 59c C 75000 30- 1 4& OlJ-125

30-091 1~125 0 , 75000> 30-147 01-t- 125 30-092 11- 128 A 100000 30-14.

Ott . USf I 30-083 1.J-.128 C iOOOOO 30-149 013- 128 30-084

~I ~I~ 30-150 011 -129 30-0915 1-1 -129 o 200000 30-151 01 "-129

A 250000 30-152 OII - lJO 3 0-086 l .J-. lJO ! C 250000 30-153 OlJ-lJot 30 a Oe7 14-130 0 250000 30-154 Dl4-IlO 30-098 13- 132 C J50000 30-1.5 013- 132 30-099 11-133 A 500000 30-156 g:t:~n 30-100 lJ-lJJ C 500000 30-157 3 0-101 U-lJJ 0 500000 30-158 01~lJ3 30-102 l.J·lJ7 C t M~I _ 30-165 DII-137

30:103 ij;ij, - A 1 M~. 30-159 ga=Uij C 2 Mea:. 30-160 30-104 1J-140 C JMt"II. 30- 161 DB-140 30-10. 1J-141 A 5 Mea. 30-1.62 DII - In I 30-10. I I-In A 7 M r-e_ 30-163 01t- 142 30-107 lI-t4l A 10 Mea 30- 164 011 -143 . . I ndud~, JOO obm Vr "all fttlstof. t U lC'd iD Jo-2'95 abo\!e left .

30- 180 lJ-IJOX 30-181 13-IJOX 30-182 1S- 1J2X 30-183 lJ..IJJ X

TAPPED CONTROLS A 250000 3 0-200 DU-IJOXt I H 250000 30-201 DIS-IJOX

I.e.. If J50000 30-202 DIS-IJ2X I~ Switch II 500()OO 30-203 DU-IJJXt Switch

Sp 500000 30-208 D I ~lllX

~g:~:: {,t~j~ £ACH ~~. ~ ~:~: : ~g:~g: g{'i:~;IN £ACH 51>. 1 Mex. 30-208 018-1J7X

30-186 13-IJ9X 88. ff ~ ~~. ~g:~~~ gltli~*t 88. Sp. 2 Mea. 30-208 DIS-1J9X

: S~1l1 control for U!lle as f ade r_ erd In 30-29 5 above left_

TYPE W WIRE·WOUND CONTROLS

IRC SWITCHES Standard attachable SP ST and OPST !l14itcba for ute "ith IRe Vol-~§,~on,~!~, t:= ·'W." Ea .. .uly and quickly iaatall~d. Merely remov'e mntl'Ol~vft'. ,.Jid<e mtdl Into pofl.itioa anrt bend ta" A\'Craa~ IIb pe 901 1 oz.

No, T,p. F'or EA C H 30-000 SiiST ~ ---Jg:ggHm :: p..-:. 29c ~g:gg~ ~ ::fr 35 30aOOS D PST "W" C

TAPERS The follo\\ina apianaUOQ of I Re upen wW tnable YOU to ",·Iect the volume or tone coDtrol haviru: lh~ llpedfic cllaractrriatiN fl!qulred for any particular r~ c:-dver : A - Uk"d a!ll pot. or rheo.

C!:-%~~':. ~.!d8~~1~~~i~~d or &Dl~nna ahUDt. D--For pid biu and antenna, UM'd wh~ "rid bias ODntl'Ol is of prime importaDC't'. F- For antenna and

rc,d ~~u~~~~ ~r:!v~r ~:..~~ " -Audio fapporod lOll c un·eo for ~ .. eompen~tion,

KNIGHT UNIVERSAL MIDGET CONTROLS STANDARD CARBON TYPE

~o~~:a.~tm:~':~~! s:!~ti! for any Ken~raI ~laceGleDt purpoee. Unusually tow-

priced but iocofllCrate Quality features 01 fine.t malte.. Knllht UDivrTaai mid set. are pr~. dsioo-buitt , u~na estra-durable compoltiUoD t"lnDCD~; with multJ .. wttliD& confacb. H.v~ atturate tape-n. Th~!te control, measure only

for mouDtln . y.' !lta.!~:dd~N.~~ ~~ ~~ill~ssc~~~'n~~vz~ ~~ Bired. Code fetter Indkatlf:'l'l tap.rr: A Lfnf"ar ta~r , B -AnteDoa & C bias. T-Toae control or audio shunt . S'Aitch type hall SPST standard ,,,,itch. Shpc. wei&ht, les.." ,,,,itch ... oz,: with !!"itch, 6 oz.

LESS SWITCH WITH SWITCH No. Ohm. ~ Taper No . Ohm. EACH

30-40 ---.-000 - A- 30-425 -----.-000 30-4011 5000 A 30-428 5000 30-402 10000 29c B 30-427 10000 44c 3 0-403 1500u B 30-42 15000

~g::g;l 20000 8 30-42 20000 25000 Lot. A 30-43 25000 Lot. 30-40&1 50000 A 30-431 50000

30-4071 100000 0' 5, T 30-432 100000 of 6, 2 •• ••• 30-4081 250000 lE.ch T 30-43 250000 E.ch 30-4091 500000 T 30-434- 500000

30-410. 1 M~& , T 30-435; 1 Mee.

POTENTIOMETERS

~:::n I 18 I ~:~: I ~ 30-Cn 15 :10 ... 12 loon 3'''''' 20 U"'U 1500 :10 ... 1, 200


TtJORDARSON !t- h p~ T RAN S FOR MER S

fIG. 2-F FIG. 2-£ FIG. JoB FIG .2-C FIG. J-E FIG. l - Y FIG . 2-D

COUPLING TRANSFORMERS FtM*\ quality TbordanoD uansformtn for almol!lt evny Input. mUer. OC linC'-COuplinl drcuit . Complett" iaformatlon l!l liv~D in the." tabulation below. Coruwt any tube chart 'or tbe impedan« of the lu~ or tubc-s to be UaN, WleD select the proper ma.t.china tr~ormCf". A\' . wt., "Ills.

TUBE TO LINE OR MIXER (LOW LEVELl

~I~I~I~I Prlm." I S.con'.r)'

:~ :~~~ ~~:::~ St : ~a t~ ro:~g ~~:t~t

83'()25 6 3-02. 6 3-027 63 - 028 63-029 63 - 030 63-031 63 - 033 63 - 034 63-035 63-036 63 -037 63 -038 63 · 039 63 -041 63 -04 2 63 -043 63 · 047 83-048 8 3 -049 63-050

MIKE. MIXER. OR LINE 1'0 GRID 2· F I 200 or SO 2-F 200 o r SO 2-F 500 or 125 2-F 100 3-8 .. or 8

100.000 100.000 CT 100.000 CT 0100.000 CT 100.000

OUTPUT COUPLING TRANSfORMERS T5I~2S S2 . 29 2· £ UnJv . Sinl~ 500 TUS15 2.4 7 2· £ Ualv. PP 500 TS7S01 1.41 2·£ Unlv.-Sinc.·PP Ad i. .1 to 29 TS7SD2

U~l 3-B Univ.-Sina.·PP Ad; .. 1 to 29

TG7sS .. 2· F 5 .000 .-8-15·500 T67SU 2.4 2· F 8.000 "·8·1 5·500 TG7SS2 U~ 2·F 5,800 4-&-15·500 TG7S51 2·F !C.OOO .., ·8-15-500 TGSS, .. 2.82 2·F 8.000 4-8-15-500 T7Ss7S HI 2· F 10.000 4-8-IS-Soo TllSDl 3· B 10.000 CT 2+8 TUSSI 2· G 3.800 "-8-IS·Soo TnS7S 2. ,2 2·F 6.600 .... 8-1S-SOO Tns U 2. 5 2·F 4.000 .... 3-IS-SOO Tl1SlD 2 . 2 2· F 2.500 2 ..... 500 T11511 3.18 2· F 8 .000- " ·8 · ts..2SO-Soo Tl1S12 3 . 18 2· F 4 .Joo- 4-8-1 S·2SO-SOO TUSU :U 3-B 25.000 CT J toO TUSU 3· B 8.000 J t06 TUSI2 .88 3-B I.Soo J to 6 TUsat . 811 3·B 7.000 CT J to 6

- U::w third ","indioS for obt.aioJol' 10ClJo iDv~r~ feed.~ b3ck .

LINE TO SPEAKER VOICE COIL Corftrtly mat(:h~ sli ne to spealu.· r voice roil . Shpil. wt.. 4 J.i It..

6 3-0 6 0 1 T .... ·I S2 . 1 2 12.£ 1 500.03000 1 Unlv. V. C.

:~:g:~ ~~:~,: ~ :t! ~:f ~~ i:.'~~~sO :~:g:: ~n~n ~ : 3~ tg ~~orlSO U.i6.~SO 63 ·085 T17SlII 2. ~5 2·0 SOO to 3000 .06toSor.12toI6

CLASS "B" ond "AB" DRIVERS 6 3 .. 076 T67D., S1. 76 2·F 1·6S7.6A6.S3 Ia6N70rSl " B" 63·077 T67D1I U~ 2·F 1 ·46. 59. 6F6 2· 40. S9 or 61.6 63 · 078 T81DU 2·F I·Or6.·n.lAS 2·6F6 Triodp.

2· U or 2-2AS Pf!'ntodp

63·078 T •• DS9i 2 . 29 2·F 2-«:5.6N7 2·61..6 or OV6 2·6A6. 53- 6N7 .6A60r S3

&3-080 T11001 3 .1 8 2· F 1·6F6 Triodt'- 2-61..6 "' .-\82" 63""()84 T710 .. , 1.06 2· B 1·30 1-06G. 1-19.

2·30 " B"

TRA NSCEIVER AUDIOS A ... ·cra&t' sWppiOK weicbt of trallM"eivft audtc». 1 lb.

83 · 036 TIlSOl 1 . 06 2- 8 10.000 CT 2-4-8 63 . 100 I TS.DU 1 Sl . 59 1 2. F 1

20.000 11.19or249 " B--

:~:~~~ ~;;~~: I :fg t~ Ib:~ ~?oOb.~oOOO 63 .. 104 T72AS, 1 . 18 2-D 5.000-200 100.000

PLATE COUPLING CHOKES Stoc. No . T »" pe

'~I "' .. Mo . Hr·· SI •• I". " .. Lb • .

~ T 5 2C98 T.F ----:-s;- 700 ~~:~;?~~ 2 6 3-145 T29C21 ,<-B .5' 500 2 83·147 T31C38 2·F 5 . 300 2~ll2 ~z2 • 2 83 · 148 T61C46 3- B 5 . 300 2 x2 ' .x2 V. 2 63·150 T1.C70 3·V 0., 22 1~1~2!14 l" 83 .. 151 Tl.C3o 3-B 15 . n ~~~~;J% 83· 152 T93 C20 J·B .5' 250 2 . J"or us~ a. plate IDduC'U.DC't' "i~~u~ Mu . Cap. 8 mL

tVit'd In Thordar.aD tODr control circuit " .. Ith ThoniarlM)D R1068 dU3.ltoDt'CODUoI 83·165. NET , .... . .... S1 _76

UNIVERSAL OUTPUT TRANSfORMERS PRIMARY : SINGLE OR PP . SECONDARY : . 1 TO 29 OHMS

~.'k~!~T'.' NET I ~I .. .3'027 TS7S0. ST:4T 2· £ .3· 171 TI3S30 LO

ll6

i

3-£ .3 .. 172 T1.S85 1 . 0 J..B .3 .. 1. 7 S T13SU 1 . 0 J..E .3-174 T13S·U 1 .9 2-E

P r lmar ,. SWatts SWatts SWattl

10Watti 20 Watt.

PRIMARY : CENTER·TAPPED. SEC. : ' TO 12 OHMS

&3·1 7 5 IT:I3S 99 S . 1 2·!U I .OOOohm.C.T .1 2' d!4i2}\1 2

P'UMA RY : SINGLE TUBE. SEC.: 1, 1, A ND .. OHMS

STRAIGHT AUDIO TRANSFORMERS

Stock Mfr. '. NET ,.1··I ... t •• 51 • • Inohe, Sh po .

No. T),p. W 0 H Wt. 63· 365 T47A2S sUy 2-C 3,1 2~x2~d'4 1 83 - 366 T29A09 3· 8 3,1 2 d~dlt 2 63- 367 T51A36 1.59 2·F 3:1 2' x2' xl I 63·368 TS7AJ8 2 . 12 H t: ~ ~:j,:~~ 3 63·369 T7SA7'· 1.94 2 6 3·370 TI7A02t 2 I.~~ 2·F J, I 2~z2 Y~2 &3 · 37 1 TIJA.14 J . B __ J : I_l~1 ~a:1 V, 2 H_ static: ahit' ld br!...~D primary and .-c. ,for strala(ht or I .P. UIIP~

PUSH·PULL INPUT AND INTERSTAGE TRANSfORMERS F~Uf'DC')." rl!'spon~ ftat \\;thiD .~ db . from 60 to 8(X)O CPS.

S t oc k Mfr . · . NET rio. Ratio NQ . T)'pe

'"'"i3-3ii"S """Ti"'iA'29 "'i'i"":'76 2·C ------:f:I 63 · 3&6 T.BAOI 1.41 3· B 3: 1 83- 387 T57AJ9 H~ 2· F H .3- 388 TS7A40 J · B J ~ I 63 · 389 T57A41 2.47 2· F J :1 &3·390 T57A-I2 2.47 3-B 3,1 &3 - 391 T58A70·t 2 . 65 2· F U,I &3·392 TIlAl6t 1.41 3-B 1: 1 63· 393 TI4A92 . 94 J · B 3 :1 63- 394 TUAHt 1.06 3· 8 H 63 - 395 T74A31 2 . 47 2·F 1,1 -.

THORDARSON PUBLICATIONS Tht' IIlI'tinJp abo\'p ft!'~nt :'I CODdf'n~ Mho ..... • ina of th~ mOAt populur tyPt'!l of ThordattOQ. tran!'tformf'r!f and chokc-s for radio or 3mplifif'r n-pl.Qct'tD~at. aDd all tr Ol nllmitt~r. commncial

;aV~r:~I;>'(n ~.::.'!.r~prd::.:~a!f u:~uDt~:n:;y~~ ~~ if~I~~t~~::'~o~~tJM:·~~f~~a~:~la~:C:~;;ic;i tht' complf!'te informa th't' Thordat"!lOD tran1!lfonarr catalol's or ma.Duals which are listed below.

SIll: _ 'r.c"n Shp O. W D H w •.

~,~'~W ~ 2~&2~d~ 2 J a' a:J 2

~r'.:iru ~ J%x21 xl 3 J .1 a 1

~~I '!Y~ \1 3~~~ I 2~

37·016. Replacem_n t T r a n,, 'orm_r Encyclo pedia. IndicatPi ('Of'l?("t rt'pI3C't'meat ualld'OnDt'r!f 3Dd chokMi fo r rK'-eh'~'" U,.t~ in RJder ' , ~Iaaual$ .. •........ .. . ........ .................• .• . f REI: 37 · 017. Tru • .,ldeUt )' Broadcast Transform e r Catal og. A manual for tht' Souad Man and the Broadcast E UKiaeer" ..••....•• • ••. ., REI: 3 7 · 7 0 1 . S our.d A mpllfler Guide. Contains df'C\litll of laboratOry C~ted IImplifit'rl! from 8 to 120 wa.tteoutpUt. N ET . . 9C

3 7 · 702 . Tranlmltter Gul d _. NI:T .. ..... . .... 9C

30 FOR COM P LET E I N D E X 5 E EPA G E 9 6

'TdORDARSON #t: h p~ TRANSFORMERS UNIVERSAL DUPLICATE POWER TRANSFORMERS

~~mJ:~C"~~~i~~~!("r::~v:f ~~~~c:!.:~~{~~!r;~~n:!i~~ t~an,=c lD a n. radioins lr .. C' t o r . a ndeoneinrrr . Typical T hordauo n quality . b Ui lt i nto ca('h u nit . in,,"~ de~ndtlb l e N't\'iC'e and IonK life . A varK-ty of mountlaall art!' '-Illorfi. to m<"C't c v ('r), er rvicc r("fluiremenlo Mouatlatt bf","",:co t . arc adiu.t a blc to permi t

r ftu~h . vertical . or horizont al mountioa_ All JW)'\-« trOlnsforrat'r. Uated hclo'. are lor 110 volt 50-60 cycle o~r3.t1on . All p late-,"';ndlna" are erntrr tapped. All haveS V .. .3 A . filament \dndin&!'I rllCcept

Unl., ...... 1 Pawer -han 5 V .... A. s..~ paxe JO for prioril)r data.

St o olc ~~r;:. \ NET P I.te l F'II . 1 lim Mta W t

No . Votu M.!!! . VTA ~ I A C_nt"". I ~b.!.: b-'oO y1"Ji(jj""l S2.i7 650 CO 2 . 5 .. . 2t X2~'" 4 , 3·101 TllkU.z 2.S5 100 SO !2 $ 1 25 . 2 I J[ 2 '~·f " ' 1_3 Q2 TUROJ l.GO 700 70 2 . 5 9 ... 2' Jl:2 Y..· \ 5 U-101 TtJR04 1.5 3 ~~ In i ~ 1~ . 5 i 5 1 . s1~: ~t1: : 51-1" TIlH.OS 1. 51 fil_10S TIlf<06 •• K 700 120 2 .512 . 5 2 .5 J .5Jtl. l" 7 &).)06 Tt 3k07 '.21 800 110 1 .515 2 .S J S.1).:r. J. 7 51 • .1 07 TIJROS 1.5] ~gg I: : . ~ lJ ~ : ~ : i~:~!h ~ U·) 08 Tt.JR09 ••• 1 63-)09 TIJROO ].18 550 70 5 . 5 2 . 5 1O . 52'~1 2V.· .. 51·lIO TIJRtt 2.21 ~~ ~g:: ~ ~ . S : ' i~:~~: : U·)11 T1 J RI2 2.65 U-112 TIJRI 3 1.U 700 90 • . 3 J . 5 . r~' 'If 6 51-)1) TIlRI4 - 1. 5] 700 120 b .1 • • 7 .... l' :r.2',· 6 U-U. TURtS- '.06 750 150 b .J 5 . .• II .3' 7 '1-115 TIJRI6- ' .5' 800 200 6 J 5 . 14 . . . . J .3' 8 ' 3-31' TURI7 1. 00 600 60 6 .1 2 5 • . 51 7 . 5'~" '14' 5 U· 311 TIJ RI9 2..12 480 40 6 3 2 .12Y, • 2~'1 J

GENERAL PURPOSE POWER TRANSFORMERS With 110 volt . 5{).60 cycko pri-

~i~I~.':.~~lrt::\t:!5tar.2 ~~~~ ~1~':I~tJ"'~~d~I\R" !~iUlrer v~1t~~ amp .• aDd • 1\4,. both 5 volt. 3

rm~: M~~~t~dv~tFI! .a~.~~~~ ,"r. Fie. 2-H "tyle. With chart abowia& termloal connectioas.

Sto crk Mfr ' . . NET Pt. ... ~.-!lI~Z Mta . Wt . No. T)' p . Vo1U Mit.. V t1 V C.nt·,_ ILb • .

:tn~t~~~~~: t n ~ t~~::J ~ ::: :::: ~~: t ,,-)). T 60R49! S2.i2 S60 ---:JO D J. S :-:: .•.. ~l

,]-)].T70R78 1.CH) 680 556 .3 I.S '" .... 11 ~2\1l· 4 51-U9 T 70R6t ].35 770 70 6 . .1 2.5 ,. . . .. 2' ~x2N' 5 Iil-UO T 56ROt .... 650 70 2 . 5 3 t . 5 4 11 21~1h. 6 ",-'Un.ROJ' 0. 70 700 'OS 2 . 5 J ! •. 51.75J ><2'lI.' 8

:~::~ lI~:~ ::~: ~~ :1~ t~ ; .5 i: s ' j " j :2{ ~' : 61 . ,..' T92R2t S . H 778 100 6 . 3 5 ' .... 3 x 3il"·1 t o .,_,.. T74R2~ 0.7< 880 .25 6 . J J . J ...... J ><2' ~~ 9 U·1U T t7RJ,a '.0(1 740 280 6 . 3 7 .' .... 3 x 3 • 10

:t~:: l~~:~: - ;: :~ ~ J~A ~J: ~ : J "1"' l a ~ : 11 n.1UT75R50t 5_.7 870t 250 6 . l 1 . 5 ".510 3 zJ II n.215 Tt7RH 1. 70 600 125 6 . l .. . 8 . 21~' 6 n·'IG Tt7RJSi 2.U 580 50 6 . J 2 O ! I.. 2 xl ,~. 4

:~:~:: 19:j~1 ~: ; f ~~ ~:J iJ :::: jl~~~ ~ • HD. l8 volt bias tap. tit ... 80 volt bias Lap.

C.H.T. TRANSFORMERS

f~~!-~ ~~=\~"!;i~~adi:~::;W~~iti:~~ :\~~~d~3~i:~:'~~I!.rime

No.

lOW LEVEL AUDIO TRANSfORMERS

TI5A66 TtSA67 Tt5A69 TtSA70 TI5A71 TISA72

s1~~: I ;i;:i~ I ~' t~~.·'fz~\{ ~~ t. 5. " 50 to 500 SO to 500 3 S. " 2.5 to 60 50 to $00 3 S. U ~1. SM. 20M 50 to 500 2 S." P.P. SM. 20M 50 to 500 2

DRIVER TRANSFORIo4ERS

No. I T.p. I NET ! -u:nr T"iffiiS ~ '3-"1 TI5D82 '. 35

Prlmar), t-2.'_O_' __ I~ Sol. 6F6 PP 61.6 J

MuJti- olC'h 6

OUTPUT TRANSFORIo4ERS

U~;25 1 " T~;~!S~~ !_..: .. ..:'J;:'.m:;;300;;·C"·'-- --~2..i:..,·"1';00;,,· _-I ~t. ' 1· 222 Tt5S90 7.0 ' 8M.5M 2 to 500 8

POWER TRAN.~S_F_O,...R:-;Io4.;E;..R:..;S,......,_=~~ __

:~f~~ Il?&~t I ~!~:! Iv~~'l tr~i l i~1.1 ;'\ir','-' .. A_~·_1 5~" 51-220 TI5R.07 '.35 760 280 6 .3 7 ......... 12 '3·221 TI5R08 11.2' 900 325 6 . 3 8 ..... . 22

All huve 5v.-.1a. filameDt MadJD.I. talso baa 5v.-2a. 6JameDt wiDdiDjt.

GENERAL PURPOSE TRANSFORMERS AND CHOKES

Ii. 2C 2H 2M. 28 2D 2E 2F 'C

An e.lre-may popular line offrrinc all n("("C"1'LQr), tr:anjlfOf'!l\~r unit" fOT" d~pt"'nl.hlble .. n·i« in a n)' tyPf: 01 Indu!ttr ial ~1e<"tronit" r"QUlpm~Dt. Eac h tran .. form"" III lIuppJi~1 witl1. mountin.c l~mplaH·. All primarif"!ll arr for 11 .\ volt. 50-60 cydn. O,h.., \'ohall:P'M ore a\'aiI3bl~ on IIpecial ord .. r . ImprovN \"olta&"~ T~,u!ation :and minimum llral ri.e ha\'e brrn Kivell

f,~;e fcrni~~r;.ri~ri~y'nT~~lr~=e~~:J~fo~"w~~:T~~~!&O,':.:.~~~!t:[mJr~~ijlj~ FILAMENT TRANSFORIo4ERS

Steck No . TJ'P. N ET Volt._ _""pt . I nt 1.1 I. F"la. Lbt .

'6T-:iiiO TSafi"l SI.23 nCT JT ...-.00 2B -,-I V. 63 - 401 Tl' F8I I:H 2' 5 CT 5.'5 1600 .8

63- 402 TUFU 2.5CT 10 1600 28 2 63- 403 TUF , O 2 . '2 2.SCT '0 7500 lC 2~ 63 - 404 TUFU U~ 2.SeT 15 .0000 JC • 63 - 405 TUFn - 2.5 CT 10 7500 2N l~ 63 - 406 TUFt! 2 . 29 5 CT • '600 20 63- 407 TUFU I :U 5 CT 5 .600 .8 2 63 - 40B TUFU 5 CT • '000 lC 2 % 63 - 4 0 9 1llFi5 2:Ii2 ~ - ' -J - ...-.00 ~ -.-63 - 410 TUFIIS U~ 5 CT 21 .600 JC ~~ 63 - 411 TUF91 5.25CT • .600 lC 63 - 412 n9F!2 2 . 47 5.25CT IJ .600 lC 4 63 - 413 n'F21 · ~ . 53 5 C T IJ 1600 20 4'A 63 - 414 T7.F2'· . 00 5 CT 21 ,600 20 5 !1. 63 - 415 n'F80 . 94 6.lCT • .600 28 • 63- 416 TUFU I : g~ 6 .JCT 2 .600 28 • 63 - 417 TUFH 6 .JCT J '600 28 I V,

~ "Tiffi$-q~ ::1g5 --n- I6iiO 2"ir" --.-y;-

63 - 419 T7Jf 60· 5 ;~ jg ~ ~! 63 - 420 T19F'S l. 4 6.JCT 0 63 - 421 T19F" 2.47 6 . .1 CT .0 1600 JC " 63 - 422 T19Fn 1.76 7.5CT 4 1600 JC 214 63 - 423 T19F9. ~:B 7.5 CT • t600 JC 4 63 - 424 T19F!5 10CT • t600 lC 2 ',4 63 - 425 T19Ft' ~ :H 10CT 8 t600 JC " 63 - 426 TUFU· .OCT 8 1600 20 5 63 - 427 TUfl7 4.4' tOCT 12 t600 JC 6%

.rrtmafle1l tapped at 105. ttO 3Qd tt5 volUl.

STANDARD Io40DUlATION TRANSFORIo4ERS

S t oe " No. -· .. ·1-""- .. ,_., ~.... .. """,," ~ T,7M' SI .94 tOOOO 2700 1O""'W: 2 63 - 451 T17MS' .9i tOOOO JOOO. 3750. 4500 10 W . 2 6 3-452 TUM25 4.2 5800 5000.10000 '0 W. 5 63 - 453 T19M21 4 .84 tOOOO 3750.6600 75 W. 7 63-454 Tl9M" 7. § 8400 5000.7850 .00 W . IJ 6 3-455 TUM71 • 3800 2500. 5000. 7500 75 W. 10

T UM" , t~ 6900 2850 . .. 00 . ... 00 .75 W . 'O 63 - 456 63 - 457 ~U:j: 12

, : 6 M~ma~~ri~;/=- ~~ ~:t4~ 6 3-630 83- 831 T l1M7S 9 . 00 Multimat.ch Pri . :aDd Sec. 75 W . 9

PLATE TRANSFORIo4ERS S toek No. T),p. N ET DC Volt. DC Ma . rla. Lb • • 83-50 0 T UPSC S 4 . 2 3 ~ --.-so- 2G - 7-63-501 T19P5S·

1:~1 5()o".OO 250 2G 8

.3-502 T19PS5 750-600 225 2G 10 83-503 T19PS7t 6 . 0 .1lOO-<00 12$·150 2G " 8 3 .. 504- T19PSst 19:~ t()()(}.750 .oo.l~ 2G ,9 63-50 5 T19P" 1()()()'1250 l OO '1.: 27 63-506 T19P i O

!~ : 19 1250-1500 300 '1.: 29

63-5 0 7 T19PU 1500-1750 JOO 21.: JI 63 - 508 TUPU 1750-2000 JOO 21.: J5 63 - 50B TUttU 'S. 7

1000-1250 500 21.: J8 83- 510 TUPU 2 • 9 1250-1500 500 2K U 63- 511 T19PU

~ ' . ! 2()()().2500 )00 21.: H 63 - 51 2 T19P U 1500-1750 500 21.: •• 63 - 513 TUPi7 d:~ 1750-2000 500 .K 51 .3- 514 TUpn 2000-2500 500 2" 6, . Blu tap at .10 volb. tOsllrned rOf doubl e rcctI6er •• 8upply botb

..ecoodarY voltaE('! lIimultaDe'OWlly.

SWINGING CHOKES

6 3-53 1 T U C15 2 . 2 5· 10 100 UO JOOO 20 6 S~-;_"a~';; I T~::;' I S~~IT 9 \ ~'~~' I ~~' I :'·; · I ';~·I ~~' I Lb:. 6 3· 5 3 2 TUC16 4 . 4 5·20 JOO 105 5000 1D 11 6 3-5 3 3 T19CJ7 8. 2 5-20 400 90 5000 2~ 10 .3-534 Tl9ClI 10.58 5·20 500 75 5000 21.: 26

510400THING CHOKES

THORDARSON TRANSFORMER CATALOG C.talo g "OOF . Lhlll audio. drh· .. r. 6lamPUl . modulnUOIl. plate. pown aDcJ-outgut .tra.n,.{ormrn ; C'l1.ol.:~ •. '~tor!t and volta&~ c:han~". Com. ~~i!!.taC~"':~~~~i~der.olr r:;~ut traDlIIormer fOr matchlhR POpular

37-0 1 5 • . ..... .. .. ... . . . . •.. . . .. . ......... ..... .......•. FREE

ALLIED RADIO C;ORPORATION, 833 W, JACKSON BLVD" CHICAGO, ILL 31

IC TRANSFORMER CATALOG The Trnmd'ormt<r E nc:yclopNlla of the Rliittio 3M Elft' l roni~ I Rclu ~ t n·. ('ontain lil de,ail~ ,.pedflcaIH.nlll ''O'\'~nll Stanco.. "" complt"l r 1It'I' , o f trilln!Ofo rrnrr lil nnd chok_ ((]If" ~pl:w:emrnt and &c"'1rr~1 p urpcn.e U!<C . A h andy cla.lli fil"d and numerica l m clt'x and price H!CI IlI".mil i ll~tanl Iot'.nion a nd , 'U,,' l"Mtimatr of tile' ilC~tn YoU w anl. Mall)' pa~ urt" dc\'otcd 10 "'an~Orm". d~l(nt."I 1 (or "JlIC'rial .hop. labora tory. and industrial application • . C ':' I3.log ill illu~lratcod throulfhout with mounl i u!.: lyPl"' available . Srod for your copy today. 37-035. Electronic Tran.forrner C.talog , Latest Edition. FREE.

ALL'ED will continue to l1upply Stancor Tran!d'ormetll on ordc'n, without prioritY t"xtentdon for purpoaes of Repair. Maintenance, i":duC'ation. a nd in IIUpport of the Waf' effort. wherr on-hand 51OC\'; 1II and KO\"rrnm~n( n'Kulalion. pr:rmit. \V1Il~r~ prioriti_ aTe a vailal>lco. I'!lipmcont of your onlcor can l>c grrally facilitated if YOU ,,;11 extend Your biKhc8t authorizf'd ratiug at lhe time Your ord~r i8 pl~-ed .

TYPE "M" UNIVERSAL POWER TRANSFORMERS

UNIVERSAL REPLACEt.lENTS FOR 2.5 VOLT TUBES

Stock 'Mfr" '1 _ Plat~ I ,.11 . 1 "11 . 2 Mt.. lWt. _~~ NltT Vol ta Ma . V. A. V. A. ~Lb' 64-Uep6001 '1_1 650 .w 5 2.0 2.5 4.0 ~ a:2 t~ • G4-101 P6002 1 _ 7 iOO 50 5 l.O 2.5 7.25 2 &2 • " .. -102P6OO.l .:1 71JO 70 5 J.O 2.5 1 9.0 2'~xl" ' Va

~:::~: I~~~ .. : 2~ n~ ~ ~ ~:8 ~:~ I ~:b 1~::J,'9:.. : ~::~!~~:l ::~8'! l~ :~g , ~ 18 . ~:~ n:~ 1 :~:l~: 6Y,

UNIVERSAL REPLACEt.lENTS FOR 6.3 VOLT TUBES

&4-107 P6289 $2.18 1 .20 I .w 5 1 2.0 6. 3 2.0 2 &l~" l ' ::::nl ~j~~ ~:~~ I HZ ;g I ~ I ~:g ~J I ~:g i,,,,~ 'A·· ~ " -118 P6.IIJ 3.78 580 125 5 J.O 6 .J • •. 5 1 Jl\ox2~\ 1 7 "-10' P6,19 2 . 2 600 55 5 2.0 6.J , 2 .7 2 xl ' • G4-1I0 P6120 2 . 94 630 70 I 5 J.O 6.l l.5 2~&2 • 6 G4-1I1 P60IO 2 . 1 8 650 40 5 l.O 6.3 2.0 2 a2~ • U-1I2 P6011 2 . 79 100 70 5 l.o 6.3 2 _5 2 d • .-G4-111 P6012 3.15 700 90 51 l.O 6.l J . 5 1 2'~21 • 6 G4-1U PWI3 ~ . 47 100 120 15 J.O 6.3 4.7 2 aJ'{J 6

~::n: ~~!~ 7 : 1 ~ ~~ ~~ ~ t8 I ::1 1 t~ l ::j. fa "-11' P60" 4.gs1 750 ISO 5 J.O 6.J 5.0 2VaaJ Iio' I 6 U-IIG P61()5 5. 26 800 200 5 4.0 6 .3 5.5 J 1l.3v.- 7

I , I

m • STANCOR TRANSMITTING TYPE TRANSFORMERS AND CHOKES

StoaliNo . TJ'P. , NET Prlm~rJ' S.condarJ'

64-4 80 " '381 ' /$ 1. 0 0 IO,OI'X) 4,000

::::: ~ ~:= ~ :1~ 10.000 3.000- 8.000 6.000 3.300. 6 .250

64-48 4 A. J808/ 5 . 41 3 .JOO - 3,800 4.000-10.000 84- 483 A-2901 7 . 03 8 .000 3 . .100-1 2,500 64-485 A-J829 8.00 6,000 - 9.000 J.300· 6 .250 64- 486 A -3816 4 0 . 7 5 8.000-IO.ono 4.000- 9 .000 6"_487 A .J~l 2 . 94 1·ol)·. I'f>d::t.n"" .1·ol y.t'f'clanrr

Audio 5 w.

25 W. 4OW. 6OW. 9OW. 115 W . 500 W . 1$ 'V.

Lb • • - -,-• 7 8

\I '2 68

2. S

Stocll No. TJ'P. NET DC Volts; DC Ma . rio . . Lb • . 64-42'5 P -5060 55-:17 ---..uu- --rr.;-- Ii- ---.u 64-42 6 P-6J21 5.53 500-400-JO 250 C • 84- 427 P -3535 8.14 75"'~ J(J() II 16 64-428- P-6J22 7 . 79 10l>0-I00 1.10· 150 C .. 64 - 429 P -40JO IU? 1 OQO. 750 250 o '8 64 - 430 1'-6152 12501000 j(J() F 26 64 - 431t P..sOS3 IHg 15(10.1250 JOO F JO 64 - 432 P-61S6 17S~ISOO JOO ,.~ 31 64 - 433 P·6JS4 18.23 2000·1750 JOo F J2 64- 436 P ·6155 24.11 2S0().2000 JIJO F U 64- 434 1-·615J 18.82 I 250· 1 oou 500 F J6 64-435 P -61S 7 24.11 1500-1250 500 F H 64-4 37 P -61 S9 ~O . 72 1750-1500 500 F 52 6 4-438t P -6162 5.23 2~1750 500 F 57 64-439t P -616.1 42 . S3 2500· 2000 500 F 60 . T apped for dual rrctlfit!r. tHalf 115 UO V . Prlm:.ary . • After filter .

~1~1_'l.!.T -' ..!!!!.. I~I~I 'n'U'·I ...!:~ I~ 64-450 C - I4OU $ 2 .23 &-to 175 100 Jooo C 3 64-4S1 C - H OI 2.76 1 8-30 200 80 J ()()() C .. 8" -"52 C · ... 03 5.09 8-25 300 8U 5000 [) 9 64-453 C - 1404 6.67 5- 25 400 60 SOOO D 13 64-454 c·n us 1 1.11 5-20 500 65 5000 F '7

SMOOTHING CHOKES

:::::; ~: :lU ~ : b3 "6 "'4 --4.-:i'6.S"IC"' •• , • ., .. '''' .. S'''2'"'. '''23 1

64-4 6 8 C · 1414 6 . 67 64-469 C -14'S 11.1 1

H \ }t.l: 1 1::g. \ i~ \ ~ 12 lOO 80 .'iOUO 0 10 .. 00 60 5t1UO 0 8 :mo 05 5000 F

J • • .. '7

32 SPItCIAL~ZED SERVICE FOR INDUSTRIAL AND GOVERNMENT ORDERS

~~t Pv~ KNIGHT TRANSFORMERS KNIGHT FILTER CHOKES

Ope. typ~ coo!luuctioa. witb l~ • . For u:te ia any type of r~i\"CT. Excellent (or ' radio eervicial:. da... __ toora, and 1!1lperime-Dt.a1 ux. C;ldmium.plated frame. Averq;c .bpi:. wt.. J Ibs..

~t~~g:~1 H·~1l'i· 1 M~i I O~~·ls~~;~ 62-002 20t 80 2.50 .85

:~:~~= 71M, I~ 'j~ I :8~ .Plate couplin!: choke (or det.rctOT tube. High impedance at audio frequency. ::t71i"d~"dsl\" . ~founUnlt ttntCf'll, 2'4'",

1i~~~~~!1; 'A'.t.o~r:U-:'~i~n~:~1:~~~.~~ ...

KNIGHT MIDGET CHOKES Id~1 t hoke" for ;my .. or 5 tu~ mld.c, radio. Serni ·"hleldrd. ROlled IS Henrit'1f at 40 ma.. Horiaonlal mountinR. 6'" ~d.. Suitable fOf'

~~~;~~iU:::.e2J.~· M.~~: ~~t.~"f"o!~" deep. _S~I~h~1 5to •• N°' I~ 82-010 200 ~ 400 62 - 011 250 62 :'0 16 500 62-012 lOO 62-017 550 62 - 013 350 ..• . . .. .

.~:lH . . ..... . .42. KNIGHT STEP·DOWN

TRANSFORMER

SET·TESTING AUTOFORMER Just ",hilt every ServicelllaD a~!11 to lCAt potent'~ failUTe in _\.>I. Tap "witch allow • .ervi~men to ovet' · load IIt't beinK lntftl at tbe Ihop. Uuu cl,t'Covn-inJ: defective parU whieb were about rndy to pop. Pr~ vided with 1·tap switch to lIupply 90. 100. 110. 120.

IJO. '40 and 150 \.'olts at 150 wattA. Primary for liS volu 50-60 eyeh· .. AC. Receptacle In trall.ld'ormer ~hell for AC pluR: of reoeh-er. ShPJ(.

6~·_~~~I~lIN[T . . ...... $3. 95

ACME TRANSFORMERS

STEP.DOWN TYPE

\ViII ndu~ line volt·

5~~~ ~~.;.~o ·t~ :!Yi;~.I,:~o;liC".~t~nll pliances. etc. WUlIlare:

Iy handle aoy dcvin! con!uminl( up to 200 " "aU! . With 8 foot cord. pluli/:. and output

~~~~~ S~~\- .~.:: : .1. ~~~ ...... . s 4.35 VARIABLE VOLTAGE ADJUSTER

M aintainl pr~r operatJnK voltaKe under varying lioe conditions. Allow .. II'trp·up

Primary tappai a.s'IOO.tOtS_iLj8t..~t:ol:;;t~: 115 volts. With ,,·ollnleter. For 5~60cycle. AC.

~!;~?~hp~~:~.~I;~~5~ON[T .. s 7.45 ~!;~?~hP~.·::.~la r~~ ' N[T, 12.95 ~!;~?~hP~.·:~~I~t 15:s~ "[T. 13.95

POPULAR KNIGHT POWER TRANSFORMERS·

Stock No . ot No . Tub ••

~--.-62-036 5 62-037 6 62- 038 , 62-039 8 to 11

~~~y.:' :e~O!:thu: ~~~~Irsr:-:d below. Guaranl~ toc:onform to RMA IItandard:l . Have t 15 V .. 50-60 cyCle prim;ui~ "ith «oler-tapped plate and filament \\ indinE'" - Thc:te filaments are

=~u~i~e~~~~~'lar ~.~~h~!~/rO~~ tlhieldf.'d portion rxtend~ below C'ha~~. Unl .... r • • 1 trp •• fit almod any radio \\ithout drillinc extra holMl. Fully shielded wIth four mlg. bracketll.

HALF SHELL TYPES FOR' 1 VOLT TUBES

,"~t l "·~Y· 1 ::'f' :r "". )

V' I A. So.99 -m- ~~ ~ ~ 6.3t.6

I : ~i 675 50 5 2 6 . 3 1 . 8 . :::: ::::. 6 . 3 2 . 0

.7007053 6 . 3 2.S Lf '.:0 2.651 700 100 5 3 6 . .1 ' . 0

i~~~g I ~:~ Ibls(ffl }i"1 L ilY

IPTITj1TI rr,T: ::U I~ ' f: : 1

62 - 0 .... 'OlolJ 2 . 65 700 120 5 J 6 . J 4 . 7 ......... . 62 - 0"'5 12to 15 2 . 95 700 150 5 J 6 . J 4 . 7 ... ..

KNIGtiT HEAVY.DUTY POWER TRANSFORMERS

7.5 VOLT TYPE 6.3 VOLT TYPE

Mu. C.nt ....

Z.2 '~·

I~ v' : n~~i~: 2.2 ~' 2J12' • 2~d l1' 2 . &2: t •

H~;:it:

2xZ!h' 2x2 n ' 2,., •

2ti sJ W 2 u:1JoM'

Same !IIl)'le (':\$It' 3~ 6 .J Volt t)'1J(' at ri&ht. PrimarY 115 Volt:l, 50-60 cycles. SecoDdari~ : 1200 Voll., CT at 200

Fully ~hielded cal'C \\.-ith lead. thrOu.~h

j'~:tJ~ 2~SI\Joi~ Ja~ti.-r:t_t.rol~l~~ ~2~~O::-~'['i II~: ..... 53.85

~t:.g~yhcl~. ~.:,i~:~I~~~ V. at 200 ma .; 6. J V. at" ",mp:f. ; 6. J V. at J am~. ; S V. at 1 3mp~. Mtl.

62_~~~.1l ~~; .. . ~~ . I.b.s:. 53.85

KNIGHT AUDIO AND OUTPUT TRANSFORMERS

Shptl. Wt.

2 1bo. 2lhs . .. lha. 5 ths. 6 lb!..

121M Zlhet. .. Ii)!l. 61bs. 7 Ibs. 8 II».

1 21bs. 2 Ibs. J Ills. 41bs. .. Ibs.

STANDARD AUDIOS ~d tylJ('. Size: 2 • 2% x 1 Va" . ~t u: . ceoter .. : l'lfe.- . ldealforn-plattmt'nts. Wt .• 2 Ills. each. 6 2-055. Ra tio lVa -L Sv~ lJfht audio. Couples I plate to I itrid. 62-056. 1-1. P .P . In· ,"urrt plate to 2 grir1!'1.

FILAMENT TRANSFORMERS 6:2-030 . ' .1 Y. , 1. 5 .mp.

'!CH .. ....... . 85. SPECIAL AUDIOS

62-060. 3 to t ratio. 1% dxl\i·. StroUJ>;ht audio. I plale to t Ifrid. Mt&.ctn.: 2Vs· . Shp~ . \.\o·t .• I Y, lb!. 62- 0&1 . rush-pull in-

f~~ . ~ ~.~e2tt~\\'~. \0"': 1t:.~IO . IYsJl2Jt Nh "'~H . " .... . ........... 65. 62 - 062 . New " Tiny" 3 :1 Audio. J~" H .• ~*":. ~~.~ !'.~~.: . ~;t.-: 2' . '~·t .. 11~~ .... 59c

MIKE TRANSFORMERS 62 -025 . For"inKleorclou· b1~-button microphone. Ta~ pcd primary. Open fraTm". lV.'1I:1'~'Jt2· . Mtg.ctra .•

i:i'T .. . llb ..... .. . .. . . 67.

UNIVERSAL OUTPUT Ualversal output for ma.tchioa impedance of any tube. sinxle or P.P. TapJ)(!'d tIN'ODdary matehell' output imJ)Cdal)('('!'1 'rom .1 to 54.5 ohmll. Idnl for roidgeu. 1%'11:1-11:

~:o\ik I~~T .... . . 65.

Pri .• 110 V .• 60 cYcle.: For '6"0"--_"'" low-power tranllmitten and rrcrivers. 6' color-coded lead". Siu. 2d:!,i.c1 %". M,iO. ctn. ,

~~:.~~.':~ .• ~·.t : ·. ~~~~·. 75c - I 62-03:1 . Same a."I described abovr. nccpt delivers '.1 V •• t ) . mps. For u:<e with all 6.3 V. tubes a..nd 7 V. loctals witb 6.3 V. nominal raUng. Size. 2 x 2Y. J: 1%'. Mtg. ctnll .•

~~f .~.p.&:. ~.~·. ~ . l.~: ...... ... . Sl.02

STANDARD OUTPUTS

6 2-096 10000

6 2 -09 7 1 15000

~ff.pDr1~H~~ a triode. . •.. .. . 44c -----

HEAVY·DUTY OUTPUT Tran.eformer matches ~iDlrle or pu~h-pull tubrtl requirinsr: 10.000 ohm plale load impeda~ to 6 or 8 ohm voi~-uil . ()prn horizonlal·fralllC" mountinR with Ie-aft... Primary lead" connect

~ !~i~.t~:i.nl~I'!1~ o:~c:~ ~t!~~~~riV%-: ~hI~o.i>. J ~tt ......... .... .... , ... 8 5.


NEW COILS FOR ALL PURPOSES MEISSNER PRECISION·BUILT COILS

PLASTIC I·F TRANSFORMERS

,\ fIOf)ulu 1I~ or fiJX I-F UiUlSformcn priced remarkably lo\v. Trimmer-~ aDd coiWorm Me molded In one prtt'C from pla!l'tic: mat.c:r"".! ot.bM>lut.ch' unafTec~ by moleturt'. SP«ia11Y-«TVOO LiU wire I, ulW'd for the coli!!. 1!4'

~~~::t ~~; r~~~~a.!~.7u"~ shielded. Double-tuued. Wt .• 1 lb.

J;:q'l $t~~:U~O ' I IS"t~-;:t~:~ I S~o~~P~! . 175 eO- 100 80·1.1.0 . 0 - 1.2 0 262 80- 1,01. eO-1S:l 80-1.21. 370 80-102 60-11.2 80-122 45 6 80 - 103 80-11.3 80-123

~:lH ... ". . ........ 65c NEW IRON·CORE PLASTIC I· F's

:~::~~: ::: ~~ ~:t':,~\1t~.n ;UH .......................... 97.

UNIVERSAL ADJUSTABLE FERROCART COILS

Pn-mit nact duplication of ddec· live RF. ADt., or OK:. coils. InduC'taD.C't'! variable over wide rana:c for traekiPE. Blac-k crackle finl!lh :thldd. Sju. I %:I[IJ/4 :l 2~·.Cover 1l broadcast band. Shpc. wL. 12 oz.

UNSHIELDED TYPE

:g:~J:: ~Ftc".71·(i\~l~lti. :: I 60-137. O,clllator ( 14- 1028) .

EACH

82. SHIELDED TYPE

60 - 160. An '-nna (' '''7<613). '1 [ACH

:~: ~:t ~:c~~~~~tl4~~~~). Sl.29 I·F REPLACEMENT

MANUAL New IF Rrpla.cemenl Manual

f!~:IIJ)~i .. ~~f~t~~~1a~ :::dI!s .trGi~~iFf~ru~:~ Ilfld apedal eoanectJoo notes.

~:.I/ff'O: ~hl.~~: .. 25, MEISSNER COIL DOPE

IIh:b.l(rarle! RF lacquer for pnosn-v_ iua coil efl\deucy. No 10&1'1 in .. ~ .• OIt

~. ~~~~~l: P~!~-drylns . oz . 60 · 240. "n. ... . .. 35, eO-26 •• TbiD.O~. HET .... 21c

RADIO FREQUENCY CHOKES Compact. blahty effldent RF choke. fa, all puf"'P<)8f's. Lattice","ouad 01 aUk cover~ wire; haprqnated (or uouble lrer 9f:1"V

.... __ ..- tcc. 11'00.-<01'(.' unlt1l ha"'e Iow~r

U 1~~~~u!=~J~a~~;Ctl~ y 6-~~ah~~~ chloe SCf'CW A ... •• shpg wt .• 6 OJ:

i~I' co... . I ron Co r. ,

Mh7 .• S, •• k No . ~ Stock No . NET 2~ eo-eoo 22c 60- 850 I 38c :'1 :g ::g~ ~~~ . ~~-652 1 ~.~ ~ . 16 60-605 32c . .. .. ... 10 60-606 27c 60_653 1 49C

JO 60 .. 605 I 32C 60-654 ·49c 60 60-607 39C 60-655 67C ~~5 . 60 ~~~8.1 39c :g:::; :,~

SHIElDED RF CHOKES Comoact. silk..(!Ov(.'f'('.'d wtr~""'ound RF c hokes. '--ollular '·alue!lI. Jll.,:hlyeRicienL Fully !'!hidded . I.auic.: wouad oa e-teatite dowel. Thoroughly

~cr-~g~~:~~: \;:i;OZ' 29c 60 - 623" 10 mh. NET . 34 C 60 w 625 _ JU aW . Hr.l .4:lc 60- 627. &0 mb. filET . . 46C

FERROCART IRON·CORE '·F TRANSFORMERS

Incorporate. a 'neb' powderrd iron <ore ""ith (.'acb partJck- in-

~1:~~~~~·S~~ ~~!di~~ hi/i:h.£.rade U U: wir(.'. thoroucbh' impr~fUtcd. GaJn and ~I«tivity aTe ncarly twice that of air<ore ='al J1=~~f:tJr:~~ttm~~bi: :~::i!t~;m81~~t; C~~~i=~~.C IJ/i" 8Quatt". J~" blah. ShJppin.c weiaht. I lb.

~~~~ I." / Input Ilnt. r.ug.1 O u tPut

175 ICC eO-l.ao .0-185 60wl.89 456 ICC eo·Sal. eO·I..8 &Ow190

1500 ICC _0 .. 182- _0-Sa2- aO·1.91.

~n·Ue'H~~: .. ..... ..... 11.29

COMPACT ANTENNA AND RF COILS

ComP3Ct hlrh-lmpedancr bankwouDd antenna aDd RF coils.

~~r. ~';':!~y~r:u~:.\I= l'eplacem~nt. fol' compact rnlda~t. and auto radio ~u.

~~~.i~~:l~:=Lru~~~; wound . Cover Broadca"t band. 545 to 1580 KC. with 365 romr. tuninK condenan. Moillture-proofed coil form8. '.It" diam .. I SA" lona. Black crackle shlddl:l. I~" dia .• 2" hi&h. 8 oz.

UNSHIELDED TYPE

:~:t:~: ~'f-t~:"I ~I(l.t~?! ·[:g 29c SHiElDED TYPE

:~:t::: ~Ft ·c~~ ... (1~b~~~~ · E~~H 39c

OSCILLATOR COILS For 365 mmf. TRF mod~as~r a Dd a padder. n83u.rc.y

t ~v..?Caa:~ • .s:Jo mml. padder; 456 KC u~ J50 mmf. padder . Shield •. I~" diam .• 1 v." hili!b. Ea ... y to moUAt. $bpa.wt .• Yl lb.

Stoo. N0'1 &0-1..0 60 - 1. 8 1. 80 -1. 70

UNSHIELDED TYPE

· Special o.:IU:l.tor coil for 6SA7 and 12SA7.

=.....,;-;-.-..,.SHIELDED TYPE

:g:i:: 1 It-lm I m ~~ 162. NATIONAL LOW FREQUENCY OSCIllATOR COIL

Two separate iaductances. doxly coupled . ia shield can. UIW'd In super·reCetkTative ~U as IDtrrruptlon-frequenc:y ck'III;i1· lator. Sc..:. Inductance. 6 .25 mh. Tunes ta 100 KC ""itb .()()().II

;~~:~:n:i;t: ·. ~~~:99c

REPLACEMENT PRIMARY WINDINGS

Hicb.lmpedaDce replacement tyPe! primary wlndiDu. Permit e!a5Y. IOW·co8t repaifIJ. Antenna indUCtance. 1.7 mh .. RF in· ducb.ncc i.!I J.5 mho Wt .. 2 oz.

Stoc k I ",ld· 1 Stock I "awl. ~~_I T7P.~~~ T:rpe 6 0 -25 0 ~" AaL 60-255 1~. Aot. GO -2S1 " R F 60 - 256 ,~ . Aot. 61 -252 ' " Ant. 6Q w 257 ,~- RF ' 0-251 , " R F GO .. 251 l \it " AnL 'O w2$'--.)i" _~ U .. ~5' I K. · A!lt.:..

~:lh .... 15c

POPULAR KNIGHT COILS STANDARD I·F',

Compact IJtandar-d hh:h Qualit)". hla:h·"ain double--t uned air-(.'()l"e I~F trandormCTIS o( lIuperior de-sign. Ideal for r-eplacemeau and (or traimoa: Jr.jt apPUeaUons. Lat-

~uc:ed·obu,.n'!rf:!~:zl~~~ng:::. ~n~ tyI:Pc:::~:;d'III~~\~l!.!°f.i~ wire wind las,. . EaJlY to mount. R M A ooI01'..(od~ . fnMulatcd Iud wir~. Metal caDS m~uure I J/i- lIIQuare and .v hish. Black crackle linJ.hcd . Shpg. wt.. I Ib-

I~~C s:~~_~,:~. S~~:~:; . s~~o_~ :~. I." " .put ".t., ..... , Output

262ICC ao .. sol. eO-S08 80 - 51.1. 456 i:C &0-502 &Ow507 80wS12

~:JH .... ........................ . 75c

KNIGHT IRON.CORE I·F TRANSFORMERS T~ compact unIt.. baY'(.' hiRh

~m~~:!~ ~Oo;:,.?X r!:!~':;; lIftlaltlvtty and ec:l«tivity. Double--tuned rrOom toP with mJca In · .ulat~d trimn1en. Sbleld can

l:~=!~ .. ~u: .. ~al~;th\{RM~ c:olor-coded lead • . Wt... I lb.

I." "r.Q. 456 KC'"

ISOO KC N[T [ACH .. ...

Input No. I Output No. .0 .. 1530 60-531. .0 .. 535 .0 ... 538

.... .... ....... . 11.05 MIDGET SOLENOID. COILS

\\-'ound witb eGafllelect win 00 special tublac 1%" lonl' and % .. tndlam-

~ld' !oT~~la=~n~l~ matfn ate adJustable-. Ua.hl~ldf'd. CO'V't:T $40to 17$0 KC. Tapped coil. COVa' t 500-4000 KC all'O. UM 370 mml . CODden8f'r. Wt .• each coil. 8 tX.

:~ : :;~: :!t~:!I. Coi l. I [NAElH 19c 60- 592. S.t 01 2 Co.h . NET ........ 37C

r~;;t~: ~ .R··~ .. ':tids~~: .1!~~.": ~g~ KC .and. N[T. P.' •• t . f 2 e.,'L. . . ... .... 44.

HIGH· GAIN TIF COILS Saml:' ~ ahove-. but ""'ith 10", . impedanC'e ~

bi~~:-~ .. ~~,~.rJ::.~I~·n .!h.!:~<!~c ~~~t~'! dia. by 2 ~- bieb. ShippiD~ weight 6 OL.

T7~ . 1 , o_~;:tl.ld.d I 'O_5~~I.ld.d Q\l! .... " -S7tltt..28, " -'701£ •. 36.

MILLER IRON CORE RF COILS

Small ,"&II! RF coila. especially dcelrable where" htsh·r.t.in coli at 8mall .i.e i. requ irrol Sh ield-

S4Us t~~~;lKty ~~t:i~~ Tn~::i. C'Ond.m..~. Shp~ . wL. 8 o~.

:~:~~~: ~j'c;r.::~~ Cuil.} £ACH 88c ~~~U~~i.I~~~j «j.~~(4.6S let..) 81c

3. FOR VICTORY BUY U, S, WAR SAVINGS BONDS AND STAMPS

TRANSMITTING CHOKES AND COILS ICA CHOKES AND COILS

IoIIDGET RF CHOKES

COrDl"'3.ct radio-freQueDcy cttoke. for U~ 10 ~ivt!rS

and IO",,"·poWff transmitter .taJ(t'!I. Utt.lvrnoal windlna 10 four M'Cuon.., OD high,rade ~amic (."'Of"e . IDduct.a~. 2.S mlilihellrln ; nc ft-. :<illlaOtt, 16 ohm.. Capacity . 1 SO rna . Size:

l:i: joli". ~~i:r2fi.~T~~hi t/ .o~ '.; ... 2 9c HEAVY·DUTY TYPES

60-805. 211a Mh. at 1000 M a. Five' ~tion uDi,-enm1-wound . R_ .. 5 ohm!! . \\,ith umovable mouDtins bracket.!!.

~l:~pi~ET.~~~t:. S 1 .47 60-806. 5 Mh .• t 500 Ma. F i ve un iYt"'r~1

~;~~~r:p~a:~::g~ej ~~HFrSl.32 .0 ... 807.2.1 Mh. at 1000 Ma. F ive taJ)M't!'Il "j%e unlvt'f"lOl;Jl- woUnfl M"Clion ... C .. r a mie corl'.

~VT .~ .~hm .. . ShPK· wt. . I Ih. S 1 .62

TRANSh4ITTING COIL FORh4S

An ideal inductance forlll for tranllmittrr1ll and for numerou!

~~!~t:~j y,s.:\~~~~ ,,'~~o?l:'; tinKer &'rip rim . Windin~ Itpace-. JI,.. .. . Rihs C'xtendin/.: ~. inlJure tow-tOM ajr-c:on: windinR. Groovm form. are tbNtartrorJ 12 tllm~ PM inch. PTonll lIpacitH(t fit IItandarcl eocketJI. Shpa; . ..... t . . 6 oz. each.

7 3~. 50 ... prong. NET . . S 3c 73~.5t._ 5 prong. NIET . .. . .. S6c 73-452. 6prana; . N£T ... . 6Sc

RIBBED CERAh4IC

U PIo,,·;n :~:~':'~~'~WS'O" eer· • amic for UltC' in rectiVI'!l'1' or low·

: 1:1'~'~~~do~ !r!~~~~~:~ ~:; • l'U!!y"indinlo! . Rim handle rrducrs

brr"d.ka.g(' hazant-o I~ " dia. I lb. • 7 3~460. 4 f"'ro n a: . NIET . . . 43c

73 - 461._ .5 Pmn~ . NIET . . 49c 73-462.6 Pron" NIET ... 54C

PLUG.IN TYPE COILS Spa~·wound culls for Use with 1.&0 m m{ . co ndenser • . Form~ a re smooth b3io::elile. I~' di · amel~r and 21;4' hi"h ; have rim-top .

4-pr-oog ~. With diaa:rams. Wt .. 2 lbs. 60-670. Snort-Wave C o illCit . 4eoil. COVe"r r::\r from 9 .5 to 217 meter.. . S 1.08 60 - 6 71. B,oadt'a .. t C o il Kit . 2 coilll cover TaJu,!r'TOm 190 to 550 meter • . NET . . 95c

- BAKELITE COIL FORMS RIM TYpE

1.0\\··1~ form~ wit h hilh dielectric tit reDloJ:th. Molded rim handle for eiUY grip. I ~ .' d b. .. lU· high . ""oz. Stock No. Pron,' EACH

60-700 ;6 I ~~:~~~ 21 <

BUD h4IDGET PLUG·IN COILS

_

ComPilct air-" 'oun" I"dorton for UlO(" In all su.s: I..-" with Inputl'! of 50 watb or I~ . GI:urd err.. mlc mountinJ.: bd.~ kreps coil away from c ha ... i" For 5-pronK

. !<ocJ.;et . Ce-ntl'r and artjustable link ty~" are ("f!nter tapped .

11 ~~I~~~~ ~tJig~~~~ ~C.nt.r i[nd Adj . NE T Band Link Link Link EACH I6U ~ 73.0'25 73-i)34 S 1 _03

80 73-01473-02473-033 } 40 73 -01.373-02373-032 .97 20 73 -01.273-02273 - 031. 10 73-01173-02173-030 S 73-01073-020 .79

HAh4h4ARLUND CHOKES AND COIL FORh4S

h4IDGET CH·X

CHOKE For r~vers and transmitt('f"l. Adaptable to mao~ U!lC1l in r .... en the smalko", ~pa~. Uaivr,.. -.I ,wlodln. . ~Atirrly impff&nattd . Center core is of Isolantite. May br mountrorJ b).· iUl own lead" in any positioD. DC revidance. 35

;h;"83;' ~~~:~ 1~~ ma. 1. ~.'.~"': . ~~L" 30c TYPE CH·8 CHOKE

,\ 10\o\,'_lo:tlOl type 8 mh o RF ch9ke. Section" wound on compact 1!IOianthe rpool. Moilltu~

~~~h~::'ln~!q:r;r!d°~~~1.!rbl~I!~~ :~: OC~~~~:~~r1~~~~f,~r C~;::::I ~ti~~tlt"2~ ~2· .. ~~"6~ ~~'T~~' ~·I ... ~. ~z . .... 90c

TYPE CH·250 CHOKE Low·loM compact RP' choketi for low power X -mitten and receiver.. Four universal wound imprra:oated pin on ~.. holantlte COrr. 250 ma. CUTTent ratin,: I mho induct-

:;;rio.:3o~~ ~~.J:; ~~:~~~'fi'ml:~~1 ~~~~na~ by mean!! of heavy Irada. Only V.I" in diam.;

~1",,~7". S:tr~~. ~~i~~.t:.4. ~~:, . . .. 30c' TRANSh4ITTI NG CHOKE-CH·500

A !~-:!~~,~~~~~~rl~~~~~J8.'!:~~; band". Ha. unive:raal-wouod pjt'S on 1!W)lantite C!O~. InduttanC"l!.', 2~ mh. : DC resistance. 8 ohm", 500 ma. c:-DntinuoulO ra t ina:. Size: I~"

~~~3;.i~~~TK : ~\' t_: 6 o~ ..... s 1.05 RFC· 85 CHOKE

lIi~h Inducta~ choke for U!'lf! in platrcll"Cuit. of 311 8 .C . and 5 ."' . rrcril.' ers . Specially

~~:::'~1y a~!wi":R;~r'b~I~~: ~: pacit). for masimum effi· del'lC'Y . Induetance. 85 mh.; DC retlilltance. 215 ohmll .

Mu . C'lIrnnt ratin". 60 ma. Bakelite case i.

~1~"3h~~:_~~!r~~~~~~~, ~~ : ~~.z:s 1.80 "SWf" LOW·LOSS

COIL FORh4S RUIlKed 10w-l~ fo~ of XP-SJ .

~N:'~~C:e ~h~ir~~~~~~ r~:hm~~~~~ inlt paddiDa: c:-Dodauer . I Yz" dia. 1t 2'.;i;-. Natural amber' color . .. oz.

~~:~~:: ~ ~:~:}[ACH .. 30c 72- 277. 6 Prona: .. . ... . . 36c

"TCF" X·h4ITTING COIL FORh4S Of low·lou XP-53 dlelectrir. Ribbed for aiTIpaciD.; with 8anRe ..,iIH. M a)' be bue·mounted OD brackets supplied or plu~Jr:ed-IQ . 2"''' dla. :r Jt.;i; · lonlt. ShPa: . wi .. 6 oz.

~~:~::: ~g~:t ~ ~::~::} [ACH .. . 48c "CF·h4" COIL FORh4

Isolantite coil forms detlis:noo for maximum efiicirncy at ultra-hiKh

~=c~~iO::r=;I~rl ~ ·p~:n~!: aod have hol..-s drilled to permit al most any type of uperimftltaJ windjllil Made JD .5.pronll type onl y. Ideal for UHF T"e'ttivl!'f' or tr'antl-

,; i~t_e2 ~~~s · N~~~·. ~~.: .4. ~~ : 7 8e

OHIoIITE R. F. PLATE CHOKES 74- 31.0_ TYP£ ZI . 5 meln' ~hoke. 5.5

:~"'~~l~e: •. ~i~iie~. NIt 1~ .15 c 74-3:1.1. . T VPi[Z2.1().20 JDt'trr. lllu!'lt.rat:ed. With braC'krts . JO microhenrin. 2 ohm». 1000 rna. Ni[T ....... . ..... . ......... . . 44c

NATIONAL CHOKES

TYPE R·l00 RF CHOKE Ideal for hfgh frt"f}uency drt'UltI. ~stensivel7 used In rrceivel'!l and low-powc-r ,taKe-!!or (r&D.-

:i!~~K o~i.~o~~~:I~eu~ur~~ D~~~t:r~:.e;~ ity ill onl).· I nunf. 2'h IDh .. US ma .• 50 ohm

~~ .. T~~~~i:~~.p.£: .~.t.~ ~ .~~'.~ .. .... 30c 71 - 151. Rl00U . A, a bo .... e but 011 .mall

~~~~::' ~~I~~~\~~ ~rT~.tlc~ . . a:~~~~~~~~~ 71- 152. R 1 00. Similar to R - tOO. 1 mh .. 300 m3 .• tDohm DC resbt"D~. NIET .... . .. . 30c 71-153. R)OOU. Sam~ u RJOO with aland-off for vertical mouDlinl . NET .... ... . . . 36c

h4EISSNER CHOKES UNIVERSAL RF

Efficient un.lverllloill radiofreqUeDcy choJ.:ell for UTtoe in rrc;civen aDd tran~ mluer low-power a'a~. UnJveual ",,;lIding 00 quality ttT'amle core. Will handle up to 125 mao I'"'' long. Wt.. J oz.

7:~;5 1 1:_~~;' I ~~; 1.!!jT1 ~~' I tSIECT 10-11' 19-1997 5.5 65 125 42C 70-177 U-1991 8.0 77 125 52C 70 - 171 19-1999 16.0 115 100 6Se 7O - 11! U-19U 30.0 260 75 7SC

TRANSh4ITTER flU ~ TYPE . Effident RF tranllmit- I tet chokes. Idt'al for t commrrdal and indu!t-trial applications and for elf:'Ct.ronic labs. Si][ ~ taper~ latrral-wound 1IC'Ctiona 011 ~ramlc core . With mouatina; brac.lI:eu. Shpg. wt.. .. oz.

,:;~O I "~)~;' I ~:' I R5~~' l l~' Is 7~:9 1o .. U I lS-lOl2 5.5 12 .5 500 1.14 71-182 .l!-J025 5.9 34.9 200 1.14

TUBE·BASE TYPE SHORT·WAVE COILS

lCtt 01 4 coils COVerfllll: 13 to 240 metera; \o\,'ouoo OD tUbe--bal'le forms. Fit staadard 4-prona: tube eockeu. Each cail marked ,,;th fnqueDcy. DeSlned ror uae ,,;tb a 140 mlllf . 'I.·ariable tunlna: condenarr.

~e~Jl'~_d~ai:'~ 't;: '. ~~.: .1. ~~ ..•... . 72c JOHNSON HI.Q

PLUG·IN INDUCTORS Moun~ in 5<ODtact tube socket.. Rated at 100 W. Ideal for oadUator. low-power amp. staRes. etc' . Ribbed C'e'f'amic form.~. Ho)("!I for internally mountinK John,,"oll " J" con"elUlel'. '\lith center tilP anrt link C'Ouplinl. or wltb link at bottom. 6 0&.

ALLIED RADIO CORPPRATION, 833 W. JACKSON BLVD., CHICAGO, ILL. 3S

Knight VARIABLE CONDENSERS ~:~.:::~r:~r~;d.t~~~3,.. :::!~~Drf~~~~1.ure!J~~ have ball·bc!arin" fihafla; ,t.tors iD3UJaled \\ .. jth lOw·lo..~ bakeUtc. Ca~city IDCr~iI:tf:'~ with clod:whc rotat..loD. Shaft. ar~ "' . dlamd~; proJect 1~". Easil,. mounted aDd have threaded holel!. for Ju, mouDtlng . Single Kang umu. 61·052. 61-0$4, and n ... CS5. are supplied without trimmer coode~r1l; all Z- aDd 3-1:a.P1 ulllt" have trimmrn dud rotor platcs slott~ to fadUlate: accurate aJi~nmC'Dt. ~1QiDf contact-spring. Shpg. wc, ~ngJe uDft4. 1 lb.; 2· and J-Iao.c umt.!;. 2 1>8 .

No. M m f . G.n.. FI, . Siu I NET

6 1 · 052 --..0- - 1- - A- J~"II' ' I n-- S1:T9 6:1,·05. 370 • A J ·&1 ·:1 1 " 1.1 9 61·055 450 1 A J " & I .. I: I · 11.19 6:1. -0.6 150 1 A 1·&1 ·z J " 1.2 1 61·070 370 2 B 2· -]I: I ' .&2i· 1.45 61·071 370 J B 2 ·&1 ·&3" 2.1 § &1·07& 450 2 B 2 " & 1 .. J: 2 " 1.4 6:1, · 078 450 J B 2 * &1 ·:13 " 2 .1 61 .. 0aa 370 1 B 11 "]1: t .. J: 2 •• 1 .08

ICA CERAIo4IC· INSULATED MIDGET CONDENSERS

Stock No .

61·100 61·101 61 .. 102 61 · 103 61 .. 104 61·105

M ••• M",f . -1-5-

25 50 80

100 140

Ceramic Insulation Pf'l!V~lJJ RF 10SM1I. bleb VOI~ br~doWtl!l. and lft.SUr~ molsture-prooflnl. tNODconosive plate.. Wlnin£ pbolpbor-brODte ,otorCODtacts. MOUDU ID M," hole. S[~ with pl;;llt!s open. 1," s. l'A·. Bra~ahaft.!A" diam. , est.enda 1 tAO' . 10 oz .

Mi n. No. of NET Mm' . PI.t .. EACH - 3 - ---r-

I 3.5 4 7 c 4 7 i ~ 6 II 6 14 7 19 51.03

DOUBLE SPACED UNIT

61.110 1 35 I 6 .5 I 10 151 .03

HAMMAIILUND "STAll" MIDGET CONDENSERS

Pooular low-priced midgrts foreeMraJ radioandtaboTato

&n'tt for short wave ~atiOJl. ver-

S~~~ hlo~J'!0lu%'1

POlnUJ. ~t~.~~?ecp

TRIIo4Io4EII AND PADDER CONDENSERS

COUPLINGS and EXTENSIONS Coupling. aft for estendln& .hafu of volume CObtl'ola, coadebtAefs. etc .• or for pneiDe 8ing~ unJu, evaa W~D lhaft. aJ'e bot of samt' diam· eter. EXU'nden 11ft for dt"C'reuinR or incrt"1UiDIl llba1t diameter and lor es.teadiDK .haft length.

Stooll; No. Inlulahd S r ... Kind Siu

PANEL BEARING ASSEMBLY For U~ witb riaid or ks· ible coupling' for mountInl volume contro". etc .•

~t= f=J~i:!~ ~: redUCiDK body capacity la .

!fJiio ~ip:f;t F~a:;:·o~~~~su~~~rega:ttt 2 fibre huulatinlit wa.ben. SbPII· wt.. lib. 60 .. 38 5. ()vc-ralt teD~ J • . NET . ..... 2 B e

:g:~: ~: ~~i~~'~~f~~ "" =~~ : :: : : : 3g~

FLEXIBLE COUPLINGS IOliulatted 8n:Ible lIhait c::ouplioes for _ couplio& drh'e &balta to conden8erIJ. Iil nlit lIwitches. tandem condetutera. etc. B 'lkeHte luulatlon. Hub.!! on uch .ide drilled to fit v... 6haft; art

:;~::;~d :=':~". ~.~.· .~ : .. ~ .~' ... 30c 60.398. Same as 6O-J95 above. esoept h:L~ low· lose tYpe C'n'amic insulatioD for U~ ID UHF c:ircuita. NET ............... . .. · 3 8 C

WALSCOUNIBELT Adiu5table dial belt to I~I ~lin~~:, . ~:~~~~ ~~ . .~ replacemen15. lost.alled ~ 3u1ckly without lakiq . ,

"Ii~ ~;;;;~u:~I~!~ . WID Dot slret.ch or allp. Sbog. wt . • 8 0'. 60.4 7 0 . POilU'., Unlbelt Ki t. C ont.iliu

~E~~ .~.~'. ~~~ ~~ .~~ . S2 .80 60-47 1. 6 th t o 10"' t'i tt. NET £A • . 2 ge eO · 472. lOY, to I l~. '!Ii~. NET EA •. 29c eO · 473. I4rM to 17 -. si ze. NE:T EA • . 3 3c 60 ..... 74 . 19~ to 22 .. -' Bile. N E T E:A •. 2 6c

KNIGHT·CROWE SLlDE·RULE

4" RADIO DIAL II Ii iii ~i:~~~~ ~~-n~ black f(~ure. o n broo~e ~ckil'Ound . Scales. 550 to 1;00 KC and uDlyt"naJ 0-100. For ISO- rOlatiOD . Direct drlye. J l al'I a V4," dlamfter' 8halt OD t.br pulley hub. ReQuirH I'A-d';' · hole'. to;l:ceptiooally easy to inlltall. Complete

~~~~~ jl~o~;;:C=~~s~:b,,~~krt~~ ~lT~~~· ........ .. ....... .. , .. 51.08

KURZ.KASCH 3" VERNIER DIAL AI w.Y. popal ar wltb lab mt"n aDd ezperimenten. Made ot black bake· flU'. Uol verNl -=ale ~~

?rt~~:o~:;t1:~ backJub. Fit V.· ,halt. Ha., 9 to I ratio for ertra critical tullillK. sue: J. wide. J~. hlRh. ShiPDinR we1ltbt, lib,

~~T~.~~·............ .75. JFD DIAL BELT KITS

MoistuJ"e'-prnot ,\-'O"etl· fabric dial belt..,. \\'1 11 not sunch. £l,peda llr treated. to provide maXI ' mum frictioG. Kit of 25 contaiDs one each of the

k}~~Ii~li~~~:;e~9d dJffereat t y~ to 6t over 900 .ets. Eacb kJt

~~&r~~~ r;~~ ~I~ II~~J lFD book of belt and ballut reDlacemmt dill .. or ovuc!100 standard radio 8I!ts . A rPquirlNl

part of every eervi~man's .lOCk. Savt"11 time

~. : ~~.1'b8:'~56.ef:::sts . ShPK· 60·455. 25 ,' ... n .... NET .... 3.67 6 0 ·456 .IOOA .. oncd. NET .513.2 3

We can lupply .n, .'ng'e belt for 15c each. Order by JrD part number 0 '" und In the defectl .. e belt. with Prloe .nd po.t •••• for correct dupllutlon.

BRAIDED SILK DIAL CORD Durable dial-cable or pure braided sUk. with water-proof 6.nlah. Available aaly a5 100a 81t atock la.rts.

~IL.".th I 6 0 - 4",1. SIt. 60 -",42 25 (L

PHOSPHOR BRONZE DIAL CABLE 42 5trarn1~ ~bI" ea(:b of

~;~~~:~!htr':~?:ot:!?n:.. brillded from 16 !ltr3,D(lfloi fine bronze wire WOVeD toget~. \Yon't flliP. 8t.t'etch or chafe. Klru'emdy .trona.. \Vill fit practi .. -ally all druID dial1t where ftesthle Cable i8 required . Should be io eyery /lCn'ioe ILit. Shpg. wt .• l Ib .

n Strand.d I I 16 Or.lded No. NET Lengt h No. I NET

6 D-Cn 23"C'" ---:fiL ~ 12"C U-U2 84c 2S It. '0"')2 33e

DIAL DRIVE RUBBERS Bo1: of 25 ~rtcd dial· drive frictJon·rubbe:r5 ia

U!!i \0 d~~~~r'::i:.! ¥f~A: AtW:ltA:r' t;:eat. Stewart

~.f-""'O~· '~'h 84c

A special pow.lc:r for aiding f'q)air 01 all btlt and cord driven di ld.!..

~~:!~~II~!e ':o:~f~ and mon.'Y In di:lJ. tTPQ.ir work . Ship' J.>i~~","'JIIJ. 60·403. NET

36 FOR COM P LET E I N 0 E X SEE P AGE 96

TRANSMITTING CONDENSERS ACCE~~~ RI ES HAMMARLUND CONDENSERS

S t o ck Mfr ' ,. No. Typl

72-.125· MC ... 20-S 72-&26- MC- J5-S 72"'27- MC-50-S 72 .:0&28 MC-50-M 72"'8- MC-75-S 72-.Uo MC·75-M 72-.Ul- MCo100-S 72"'12 MC-tOO-M 72"')) MC-UO-M 72-.U.- MC-UO-S 72-.U5 MC-200-M 72"'16 MC-250-M 72-117 MC-J2ft-M

MIDGET TYPE HIgb quallt7 mldlEd coDd~D!len. Insulated with holaDtite. Cadmium-plated brass p lates. .0 225' thick witb an .0245'

:~ld~~ s:: ~~~~ shaft. Tested at ~o V. AC . Clockwi~ rotation Shp& wt. 1 lb

M •• • Min. NET Mrnf. Mm'. EACH

20 s:s T1.32 35 6.0 1.3. 50 6.5 1.44 50 6.3 S.4'" 80 8.0 S.56 80 7.3 1.56

100 8.3 S.68 100 7.5 1.68 \40 9.0 1 .• 0 \40 10.0 1.80 200 10.3 1.98 260 12.0 2.16 320 U5 2.40 . Semi-<i.rcular plates. AIl othen are Midline .

DOUBLE·SPACED MIDGETS

"APC" MICROS Hlab quallt,. air-dlelec-uic conden~,.; com~act In lIi ze. Particular-

1~1~~:r~~!~/1uSi~p .0 t S', WiD fit I 'A ' dia. coil forms. ScreWdrivO'" adjuatment. "oz.

"HF" MICROS

~~tri~'!i':t~ In ~:tc~ high frequency circuits. Heavily platlled platf!B. holantite inaulation.

!1:~o~~e~~ -Douhle-flpaced units. ShPK. Wi •• 4 oz.

I ~~.5 1 H IS~:U

100 5.3 1.26 \40 6.2 1.44

15 3.6 1.02 30 5.2 1.14

TRIMMERS AND PloDDERS

~ "EC" E(j)UALIZERS a For halandns:::. neut ralizing

O • ~~~Yei~~~C~~~Ic:;:a~~ I ~'Xl'~' . Adjusting I!ICrew in center. ShPK. wt.. 2 oz .

~~;.3 ~0: J.J5 .M."':f. ............. ... 20c ~~;'~51. 2~8.0~~f: •. . ........ •... 26c

~ "MEX" E(j)UALIZER

Ext~mdy small low-loss CODden.er. Sc~w adjustmeDt. 1Mlantitr bur. with mica didectric and pho!JPhor-bronzr plates.. J to

30 mmf. ',4'J[l/-L: . Shps-. wt .• 2 oz. 18 I 72-342 . N ET ..... ... ... . ... ...... ,

NATIONAL CONDENSERS

Stoc~ Mfr ' •. ~ Typ. 71-000TMS-IOO 71-001.TMS-150 n'00 ~TMS-250 71·00 TMS-JOO n ·00. TMS-50D 71 ....... TMS--IOOD n - 006TMSA.J5 71-007 T M SA-SO 71 -008 T M SA-50 D

TYPE TMS PreclaJon type condensers ( o r lowpower stages of tranelDittrn. Air·

't~SIl: ty 0 2 ~ '.J6$~ for TMt.'-' -Low

C conden~r'l!l are ra ted at 2000 V. Peak: o ther. are 1 OOOV • Peak. Average shipping wei&ht. 2 )be M ••. Min. NET Mmf. Mmf. EACH

100 Ir"" 1.6!5 150 1.83 250 U.S 1.98 300 15 2 . 37

50·50 6-6 2_49

1<l!'.i~OO 7-7 2.97 8 1.98

· 50 \I 2.16 -50·50 10~·10~ 2.64

TYPE TMC MODERATE POWER

TYPE ST

~~r:!'~~-Klth~ t 800

• holantite insulated.

~it'f"r. S!~Sd 5 T H 0 - .018' : 5TD and 5T.026'. \\'t. .• I lb.

M... M in. N ET

1=';+';';'~ I-M_';'-5'-· _M_ :;'_ f . S[:.~~ 25 J.15 .99 50 J.5 1.05 35 6 .99

71-034 ST-50 50 7 1. 2 0 71-035 ~--rs--8- ""'"i":""i2 71-036 ST-IOO 100 9 1.50 71-037 ST-140 140 10 1.65 71-038 ST-150 ISO 10.5 1.65 71"'0 3 9 STH-200 200 12 1.&3 T l-040~250--.rs 1.98 71-041 STH-JOO JOG 15 2.16 71-042 S TH-.lJ5 335 17 2.31 7 1 -043 STD·50 50-50 5·5 2.31 71-044 STHD-IOO 100-100 51 .51 2.97

INEUTRALIZING CONDENSERS

TYPE NC·600 . A I'Imall·slzed Deout.raJizinK cood("n~r

, b~la~bl~~~re;~ub~~~ ~~a~~s ad;~.s~:!I;~ ran&'! from .S mmf. to 4 mall. lsolantite

, i.t' i.u~otr.2.S~IT.~~·: . ~ .~: ... . .• 30, :n·~-~~I~t.a:'cf~~D?.!!~~r~~~ .~~~ .36,

CONDENSER COUPLING Bakl!'lized canvas in.!ulatlon: brau bu.!biags. Flr:z.ible: for ganaing coa· drn~n. etc .• without n~ of toJ[· act ahaft alighml!'nt. For Vc'shafts.

~'1~~95~~·~~g: ~·L •. ~ ~~'4 5 c

_ N:~_?u~~~nER S~~:b~ r. bronuo ftf'xible I'Ihal..,. with Vc' hur.:. Permit control up to 90 d~ers. Huh!! will not I()().~o. 73 ... 290. T y pe 253. 3 ' ll'Dgth . NET .. 21c 73-291.. T)'pe 254. 6' lengtb. NET .. 29c

BUD CONDENSERS TRANSMITTING TYPE

J C • For low aDd m ed ium power. u~ only J' J[ 2~' paoel apace. Rounded

r~~~esAv~ls!g'pa: ~6 A'i!: .. Stock Mfr'a . M ••. Min.

No. TYPe Mmf. Mm'. n:iOO "'""iSiS -so --.-72-101 1526 100 72-90 . 15 29 340 72-905 1530 25 72-906 1531 35 72- 907 1532 55 72- 901 1533 80 72-909 1534 1\0 72-910 1535 150 72-915 1540 55 72-916 1541 80 72 - 917 1542 l OS 72 - 921 1545 55 72-922 1547 100

BUD MIDGETS Single iM!arillg tyPl!: wipIng sprinR contact 00 rotor; mount. in }i,' hole. Elec"lrG-l!JOldered plates; I.."ffamlc insulated. Semi-

6 15 • • 6

7 9

12 • t2 15 10 \7

AI. G •• .OSI" .OS I" .OSI" .0 78 ' .078' .0 78' .078' .078' .078' .1 44' .1«" .1«" .175' .\75"

NET EACH

StH 4.26 2.12

U~ 2. 8 3

1:83 . 4 4

U2 1i . 12

~~~uJt~~~~ ~~:~~~ others, .024'. We.. 12 o.~z~. -~;-.::...,-,,=o-

S t ook M i n. N ET No. PI.t_. Mmf. Mmf. EACH

61-150 --3- --. - - 1-5 - SO.65 61-151 5 5 35 .71

:~:~:: II ~ I~ :~2 .1-155 19 7 140 1 .03

DOUBLE SPACED .1-153 1 5 1 5 1 15 ISO •• 797 61-1.0 11 7 35 9 61-161 15 8 50 1.06

NEUTRALIZING CONDENSERS

grid lead trrminatina: at the ba..r. Fo~~e~u~~'~n~-~~~.h~:~~ve daJ Provides a more compact installa· , lion. Knurled nut permit.!! locking (011 pennOlDrDt srtunK!!. SinKle hole mounting. Sbpg. wt.. 6 oz.

Sto,' I HOIO , Ploto I c ••. , N£T 73~;'10 ~I~. ~ M:f. EACH

73-411 ~" I'ID' 7 . 5 ~ BUD MIDGET TYPE

MILLEN MIDGETS Compact midget!!l (or reo celvrn or low power t.razg. millers. Double spaced. ultra·blKb frrquen~ type.

~~I~~:'uhm':t~~tinOtf~ ~h~ ~.dArI:: 72-025. D u a l J5 Mm(.

~~TO::cll~~ ... ~~ .?~~' .••.•.. 52 _7 5

ULTRA-MIDGETS If Ertrrmdy compact midcrt COD- .... den!ICT!I for r-ecei ,·er!!. OttCillator!l. " etc. holantite endl!ate mounts

1~~~~~r~:'~nrl.t~r~al o~ ~~:~~~: ~~ ~:~: ~~~ : :::::: : ::: 5~:~g 72"'032.50 M m f. NET .. . ...•..... 1. 2 0 72"'033. 100 M mf. NET .. .......• 1. 5 0

PANEL BEARING & EXTENSION For U!l(! with rigid or flexible shaft couplinKs. Fit panel~ up to %. thick. -Type 255 is paod bearing only. Of cadmium-plated braM.

~t3~~:5' Tl/5 Sh.tt .L.ngth 73 ... 276 256 3'

NO" I~g

73-277 257 &' 24c

ALLIED RADIO CORPORATION, 833 W" JACKSON BLVD., CHICAGO, ILL. 37

PILOT LIGHT BRACKETS, JEWELS AND S 1" JEWEL BRACKET '13" JEWELLED

For power-paaels. tnt BRACKETS rquipm~Dt . dC. Standard

~':!~t . Hf!;tf~::~eQ~i~: t lach mouDtiq bole-. Lees bulb. Sbpl . wt. • .5 oz .

~1~1~IC."d.l.br .. Red 52-420 52·430 .2-.... 0 G n!'<'D 52 · 421. 82 · 431. 82-.... " A m ber 52- "22 52 .... 32 52 - 442 -!lor 115 volt aoervIC't'. NET [ACH ... . . . ........ 75. S2-34'. 1I5V. bulb for canddabra. 1: • • I.Sc

1f, ' "'E-MINIATURE SCREW BRACKET

:~:::~: ~::~". I ~:T":A2c.:.~~.·.r:29c

UNDERWRITER~' A .... ROVED TYI'E 115 volt pilot l i a:ht ... _mb\y. Porcdai Q and mc:LaI COD!lUucUon. t· hole m ouDt·

"1IJ.iIII~" }~!'n ~uJ~ br:orr::;~f~l:i !hoer:i I~wel holder. Without bulb. Shpll_ wt... 5 01 .

~~ :::~: ~;:~n . I ::;.'&£6A2c.:.~~·r~ Sl.18 5 2·34 9 . 115 V . candrl3.bra bulb. ... 15c

'I>" AV 19 AVIATION TY"E MOunts In %- hole In

fb!din:~a~~e~~a~~~ UltM any minio.turr tubu· lar ba)'on<'t baK' lamp. Lampe rrpla~able from

frvot_ Chrome-6nish rd. ~ bulb. 21,4· . 6 OL

:~::::: ~::~n . SH2[-:::C:h~t. : .84c

e~~~~~ BULB REIoIOVER 52-S50. R ubbe r tool (or r~movhu:

caDddabra rwlot lilbu. 8';:'Il~~r:,~~ 2 4c

Visual lodlcatofll for U~ 00 power amplifier • . relav

~i~~~'II~~~~~i~~ hole mouDlin • . Sbow. when your equlpman i. ..oa.·· With JtweJ. 5 oz.

@ © "'LOT LIGHT SOCKETS

M iniature baRe pilot liaht .ockeu wll.b lUi!: conDrCtion moundop. ShpR. wt., 4 oz. 52 -400. T),p. A. U -h'pe dlp-on mouotlnc:. 52-401. . T),CM e. Spadc- bnu:ke t m ouoUol .

:~::g~: ~~:: ~: ::::!';;'cJ~f:eir,).';:!~tJll& . :~.:O~~ ... ~P;':i \~'!i~~ .~l~ p.. . .6c

POPULAR MOLDED KNOBS FOR EVERY REQUIREMENT

® ® © @ ® ® © ~1.i!J~~~rE::i:;:d~~t:-:I~:re~~s~t;H~r rJ::;:~~:ror ~':U);\~~~°alrt~~~~iO~~.F'it Itandard ~t · ~o. Fig. Dla m . C.lol' E •• h fa "or 55-025 A

~~ 1i"i"iCk ----

55 -026· A Black 6. 48. 55-02'7 A Walnut 55-028- A W alnut ~ 7\ -W- rvory- ..K SSC ~31r II ~ "1iIiCk 55-036 B . ~. Walilut 6. 48 • 5S·040t D . ~. Black

STREAIoILINED BAR KNOBS ModerD black or rrd kno b!

~o:r:.nL'.H~rm~:::r!i~S~~ and roeceivinK ~uIPllH'nt , He, Poinl r r d early markfd for accura te n3ding . F it Y&.· shah • . Durable moldte'd plalldc materinl. Aurae-dve IItrearnllo.r dhi.:R. R~ ~t IICr~w., Avera~e.hl pPlnl; wci&bt . -4 ouncea.

~ ..!.!!:.I SIa · I~ Eao illor ~~::~~ ~ ~: l~k 8~ ~~~ 55 · 072 A l ~ · Black 7e S6e 55 · 011 A I 'A . Red 8e 24e ~~::~; : , ~n: g!!~~ 6~ :~

2 S .. EED .. LANETARY DRIVE

~ Auaili ;& ry "perl! nod Uft'l'. MounL. on cond~nvr. bOlC.'k 01 pand o r On diill-knob "haft. RatiO!! 5 to I and

~~o_ ~':~." ;{-;';)I;Jft . s 1 .32 .. a·1.0. Srt at Z K aoh!'l for .. ww-.... 12c

__ r ~1 "1 • • ~~' ["Ch l'O"o ~g :g:: ~ m: f~~ 11.99. 51S-047 E 1 ~· Red

~,,- I r: lIIK£ 1 §C 55-1.51 C I · Black 1 e 511 -000 C I · Black 1 C

W8ltt T 1~; {t!:f~u, '~~

DELUXE DIAL .. LATES Beautiful black aad ~ finlfth on Iicht metal back.round.

~i:: ~~~i .. ~ \r~: '2 ~~ulltinc

i}i 4 C

5 5 - 160. T reble 55 -1. 81 _ Bas.."1 55-182. Phono 1 55·1.63 . 8a.."15 Tr.ebl~ 55-1 8 • . Mlcro phone 1 5$.1.611. Microphone 2 5$-1.66, ~1icrophone J 55-16'7 . Micropho nC!' 4 5$·1.68 . fJhono 2 55·169. Dual- P hOllo 55.1. 70_ Master G ain

14.

::: ~~~ : ~~~~08-~ae. PhODO 10 'or $1.26

ICA DIAL .. UTES LESS KNOBS Profeuional dial platn In .ilvC!'r· Rra111 " a li Il , C .. Ubnl i on~ are hi bl ack f!1Ch-cn-

~e~:\D~~:&~:~:~ plates . 10 tbrH "bft. with 0.100 calibrationa. Bakelite ftuted -

~I:ot!r · ft~~p~~~~,~ 325- pI~te. Idc-aJ tOf' v olume c:ontrol. .

Ho. DI., NET No. Ole . NET 180 D~G"EES I 325 DEGR[[$

S.-~:lO y--~ ~ -V- 43c •• -1:l~ 1 J}>·137C 55-12'\ JWl67C _5-122 . 76c 55-130 . r 76e

ICA FLUTED KNOIS

ICA "RECISION VERNIER DIALS

[~T~:~dT.JD!~k~ Diameter 1 ~· . BroDZe flahh . D ID 18 1 all'.

~!rO,~':naetrp1a t ; t)?2; ® etc:hrd arrow and Is pot Rrad ua led. FI,. B.

l ack mark~; blac\.; \\ ith mctCl l1i c lettering . Col~di;unftc:r '11.~ . S.s..144 b ide'''') for Utili: with

lOu.le or tOlary ty~ !\wltcbn. \\' t . • 2 oz_

55-1.40 . Tunl n ~ . 55- 1.42. Phon nl. 511 - 141. Vo hunt:" 55-1.43. MjCTophon~,

"'t. A. I Fl • • B.

~:lH . .... 12. "t.~TS.: .. -.::r-oa· .. 9 • 38 [ V [ R Y T H I N G FOR T H [ R A D lOS [ R V I C [ MAN

RELAYS • DIALS • CRYSTALS NATIONAL DIALS

TYPE R 1'/. " DIAL 71 - 0 7 0 . Neat ~chtd sih:t5' dial a.:I u.ed on the HRO re~Ivc:rs . Markr-d 0-10 over 180'" clockwi~. t'ni· diam.; for %.

~E'~'. ~~~ : ~:~. ~~' .. 5 1 C

7 1 - 07 1. . II RP-P. Bar knob as utol"fi on

·;:t~?·· dl~ ... ~ ~~. ~~' . . \~'~~ .~I:.t~ .. 24c TYPE 0 3 '12" DIAL

7 1 - 0 8 2 . Attracth-r c:ir'('u_ laroltTained Nickel Silver dial.

t~ ~1.~La~~~'~U~~ogD~~~~ frip knob for rasy lunin •. Fits ~;t~af~. \V,t .• I~~.z: . 99c

f"'o: i~:~OQ1JI~' ~;~~~~~.~ . ~~~~ .. 39, HRK KNOB

LV&e. full-erip tuaina knob for U~ with rec:dVt'T'&. tl'ansmJttenJ.

:!f~e~~yd~~~ :'~~~~ri~ ~it""b·;~~iLf~si: i\:~ ·:. ~ .~: 5 7 c

ACN DIAL An eJl:~I1~t InBtruble-nt dial for production te"t and

!:!::.~tou~rC"3~:~~ Vernier drive unit. \\"itb J bb.nk remo\"-3ble 1'Ca..I~. Holrs in

~Iater for maldne calibration poinh. Size:

7~ !~~OSh/o'h,,:t::.I . I.b .. ........ 53.00

GORDON HAND WHEELS

:O~r:r!~~~~~~~I::a:r~ mit uniform ap~ar.oce Oil Xmittlna and eke-(romt r:quipment. Bakelitr <\\Ih«1 with polDtffj

~~h~~1 ~~ 2twf~:~ gaiD cont.rola. Wl... 8 oz.

:!;~~2it~11~Ji:~:'e~~.}~.n.d .. s 1.23 ~!;~~!;t~~~~I:cnil~e~\~i.a.~~ . $ 1.06 ~:;t~~ ~it~ ~~J! :~1e~\'~~~ ~.n.~ . $ 1 .09 ~!~!~ ~it~ ~'~J.I ~.j('~\ ~rj ~.~d .... .. 7 6c ~!;~~~it~ ~;Jf::~('~~rj ~.n.d ..... . 82c

HAND WHEELS ONLY Same •• above. witb pointer, IrM sc-ale.

~:: ~~~: ~~:::~ ~~: ~-:l~~:~ : =~l : : 3~~ ~ : : ~ ~ ~ : ~~: ;~:~ ~~:~~~:~: =~~ : : a~~

MILLEN DIAL HC'a\,)·.l/:aup niC'kei .itver dial. o to tOO CoU"tf'r-docL:\Vi~. Larae black bakelite hub in· .ul;,t,"", metal JllCale from sh .. ft . OVt"ull dia •. J'.4-. Finllc-r·arlp

Vr:~40~; ~h~ ~~. $ 1 .00 MILLEN VOLUME CONTROL LOCKNUT

O I-..ock.s p:lnel-moullted COnt rol

~~. Ihl cre·~t po~tIOD. Fitg "tand-o .....,.~ u r l,1- bUlI-hlng. ,..~- o,"-erall .

. ~:T~.~~: ....... .. .. 36, CATHODE RAY TUNING UNIT

An fnupeILIl ve vilUal tullin&lnd icator u.in&

~~I~~ ~5. tE!.~~iY In.t~lled III aoy art with AVC DOt

~~'r~ d:~ti~e~bl:~ door'S mountln. bradletlll. lastructiolW and

~:~eB ;~5s:' ~:;: . ~t:: .". ~bs . ......•.. 73c

HIGH QUALITY RELAYS FOR EVERY PURPOSE POPULAR GUARDIAN RElAYS POTTER & BRUMFIELD RElAYS

Model 8·100. D PDT

~r~~r~~~~l!e~d .prlncs for clean~ break. Sh-er CODlacta. Low current drain . Coml>act.. For 110 volu AC.

~g. ;~.l(i '1~!4-·

7 5 -700. NET. . . ... .. . . . .. 55.06 75- 70 1 . !t.fodel J(IOO. SP ST t )·pe. PU~

:~16 ~D~~r ~y:ktoclr\~: ~~~:oSize~ ~¥.~~.I .'~~ . ~.~: wt.: .I lb ...... 53.70 75-702. Model RtOO. For RF drati\.!! up to 1 "':W and "8 MC. Al"im:.g 196 insulated.

~~2t--~J:;rl \~? ~i:~ ~~ .. s 1.85 75-703. Modd R - IOO-C. Samr as R·1OO

i~~·.b~~~et \~fb.' :tT·. ~~~. S2.82 75-70 • . MOfiel X-l00. Adjulta~e type

~i:I~IIIl~~~r:;:~ ::a~.!:n°~ ,:m6S"6 ~~. ::r~:J~·~~\t~~tll:D r:;:.,~ .~~'. ' 6.76 75-7 05. Model A-tOO. Aatenlla r('lays in· ""I"taI with Ah.lrnu 196. AIIIO for h~avy duty primary keyin!::: or control. Heavy "ilvcr con·

~~f~~n1jpD\ t~y~~~~:' ~& t~Ai~ 'Siz~~ ~~2~.~~: .~.t: .. 1. I.b ............ 54.03 7 5-706. M odel A·I~. Same as A·t OO

~~~el ~b~ ~I:~~.~~~: ~::.~~~~~ : S2 .82

BLILEY qUARTZ CRYSTALS

® © On priority ordc-r""S woe can liIJpply Blilcy CrYllllaJ:. 'or any frl!!oQuency control applic:ation.. \Yc "h;dJ be Ii'Old to quote on ) 'out O«'l..b.

FIG. A . STANDARD FREQUENCY

T yp. s oc 1 00. A tOO J(C CTy1Ital for U!k" in

le~ an:!t~~~~J~~rjllll~~iml.~~: Jndud~ndff aluminum Pl'otecUnR C'O"'C'r hi a COrTC<."'t Iy dC:'!d~n(!(l Unk C'Oi I. Size: n,~- dia .. 2Ji1- high. lacludina pin~ . I'luK'" Into standard

~&,"_o2iJ~~IT:'.!:~ S:tip~':n \\:~I~:t::e i<~~dm.t'IY 21~C) : ....... '15.50 99· 211 . Alii abo\"'f':. but caUbratrd at sPKified

WT.t~~~r~t.u.~:.. . . . .... 521.00 FIG. B. STANDARD FREQUENCY

TySM s oc 1 00 )( . A rv«is.ioo X <ut ~tal for appIkadotui \\'h~re the accuracy and "tahihty at type SOC 100 unit (above) i~ not r1!!Juirro. II,," II. f~uency temperature c0-efficient of minus 10 ('yr"lea/ m.t.rc. Si.u: 1%dia .. I~- hilth Includina pinll. PI up into ;::1~ctshgl1:~·:"t~nl ~be ltOCkct . liS no tank 99- 2 12. NET .............. 9.50 99-2 1 3. Same 3l'i 9'O-21Z but callbrate-d at 8pecJl1CO oven teaUlC.rature. NET .. . S 1 5.00

FIG . C. SMC 100 DUAL FREQUENCY

~~~~a~d~. 1~ ~~~g-If~~:n~ fi~~~~ within .05% . FrC'tlu~nc~ drift iI mlQu!'I 10 and minU!l 23 cycll!11/ nl.C"./-C for the 100 and 1000 KC fnquend~lI. Size:. I ~- z J %' z z~-.

~:;.1~~'c_100 . NET . ... . . ...• . 57.75 BLiLET CRYSTAL HANDBOOK

A comJlletr handbook on frequency control witll quartz CTY!ltai!l. Thirty·fivr paR""8 n:pla.ininl\: tht'Ol'Y. u ... applicatioa and ca.re of QuarU

~~8_t:I;. S~I':~-; :'. ~. ~~ ' ....... " ., ... 10f

RURt:edly built J)O"'er reb)'. for handline an)' HwiLChicK requirement wh~re beavy CUrrent ia PI"~nt at 10\" frcquencit."lJ. \Yill Afdy break 20 amps . ID DOninductivl" dreui&.. O\'~ni&e a1d"&izina coil provides po.\\~ l ull for fon. ~itive action.

c~~8~ei;rxT~~~.n\r::,clr.c~~:~r~J.O ¥ 1~ ~:r-:~~ "ar:r.::::.I ... ~~: .. S2.50 ~;r~l;cj~~. PN~·.2 .. . ~.~~ .... S2.50 ~~T6.0.2 •. ~~ .~~-;S:.SP[)T: . . 52.75 ~:;::I~"o~~:lT~~:.~.~~: .. ·3.60

MIDGET RELAYS Efficient r~lay. for u~ la

8m~1 A~~d ~o.:.~C. 21~ JJ/ •• ,~ • . ShPf( . \\t.. IV, ~ ·CODt.act.a nor1ua.lly opt'D.

No . Mode ' T~p. Coli Vott. ge EA. n -61 0 \fR"X":'i SPOT 6 V. AC ZW. U .SS 75 -611 MRA·2 SPST- 6V. AC 2W. 1 .5' 7S-61Z MRA-4 DPDT 6V. AC 2W. 2.21 lS -611 MRA·5 D PST - 6V. AC 2W. 2.15 7S - 6U 1'01 RA· I SPDT '1 0 V. AC 2W. 1.55 7S -61S l\IRA-2 S PST- ItOV. AC 2W. 1.5' 75 -616 MRA-4 D P D T 'IO V. AC 2\\'. 2.20

~t:U ~1:A:~ ff/~· ~le.\i,~1.~~:: i:~ ~ 75-CU MR.D~ 2 SPST· 6 v. DC 1.5W. 1 .50

PLATE CIRCUIT RELAYS

'\0 excrllent tt"13)' for 8m·

T~ ~'!~"il~~~n~~ a~ rated at 6 amos . Stu: 2Y •• I~.IM..". Moun Una ceOltta. 2~-. Sbip. ping wci .. ht. 2 Ib$.

J~~~:·C!ir~~T~~.~l ... ~~.~!:S 1.00 l~~::·c!ri~N't~~~~:.~~~.~:$1.15

ALLIED RELAYS TYPE PC

E"pecially dt"sianed ror P.E. work . Silver contact" carry 5 alftfhl. of non-re.ctive AC up to tiS '·olu. All relays arc SPOT. "dju,table for ~ul1-in and tltoP-Out r~au-

i~~~\"o~~ !i:o::~C:;S~le piect' a~ m3d~d Armco elect"rteal irna. cadmium plated. Coila layer.wouod and fully Imprrgnated. SU:e. 2"Mxl '.4·.t y,-. Wt., I lb. 77-070. 2.500 ohm colI. O esicnt'd for plate

~ETi.t of 3 t.u.~ ...... . ....... • .. 51.57 77-071. With 6 volt AC coil ... . . • SI.87 77-072. \\,th 110 \'olt AC· c oil. .••. 1.87 77-073. Wi t.h6 volt DC coH ••...• 1.57

TYPE D For industrial control 3pplicat.ionll. i&.Ial"la and ais::;nal dcvicrs. e-lA: . Lay· er · wound iIDPt C'cna~ coil!l. Yokr. armature and poll" pl~""e of biahgrad~ electrical trOD and silicon steel. Con·

~~~2S~:I~ ~o~~"l~~~~~c~ r~ 10 ~~ hou~iDg . New type of (;OnstructioD rminalC:S carrylnll: current tbro uch actuiltin~ sprinc .. Have in!lulated me-tal mountinc b rac k eta. All are DPOT type. Size. 214 - lonc. Zv.- h iah.

Yfo:.~; ~N~~Y.'All~ET .... 54.26 77-0S2 . 04. 110 V . A C . NET . . .. • $4 .26

ALLIED PHOTO RELAY BOOK A "aluable handbook for the- u~r of photo-

~~~ C:l~~t~~a~~ln!itilli!!:~..:l~i~:~ tht'Ol'Y. in~tallatlon and et"T'-·idae. 1D(;ludes _ diM'u"ion of li.ht tIOurtta .. ocI recommended

~7~~·H~~:.~ .~ · ........ ....... 25c ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL. 39

~ .&/&, S WI TC H E S O't~ Roses H & H TOGGLE

SWITCHES Unf~nun' Ap

-Lo.""'!".:oII,-.. Ilro\ rod ; J am ps.

1=' =~~J~di~:d black. . ShanK, ,~~ dla., two locka.uu . 6 Oz.

51 NGLE pOLE SI NGLE THROW 1 2 · LUGSl

34- 1 00 , In . 22c S 1.98 No. s h.n""IEAcHI1DFOR

~:: ~~~ i l ~ : ~~~ ~:~~ SINGLE POLE DQUaL£

THROW ( 3 LUGS) 34-1 10 ~ ;no1 26C 1*2 . 34 ~:: ~~~ i i:: ~8~ ~:'6

DOU B LE POLE SI HGLI: T H ROW C4 L U eS)

3 4-12 01 '~ ;no, 4 2C 1. 3 . 78 34- 12 1 Y. in. 44c 3 . 96 34- 1 22 I In 4 Sc 4.05

DOUBLE POLE aOU.LIE THRO W ( G LU G

34-1 30 l1 ;no1 44C IS3.9~ ~:: ~ ~~ ~1 :~ : ~&~ 2 : ~2

H&H ROTARY SWITCHES POtiti"e cont Qc:t

_",'l"''''' ~~~~~~Yr'::~j amos . ·125 V .• I

it~r.u~2. 5 ~~ft t hn-aclrd IIIt;U' ~~· \V~rh ~knu~~~ Un~\riten' ApIWolled . Wt . 6oz.

~,!~~. i~;o~~:.~8:1"CH 22c ~J~~:.~:io:~;J8 :fACH 22c :h:~:.~:io~ ~f.I/l·.cH 26c ~,~~_1fio~r:'l, .J/f"CH 4 2c .3h:~:~:ioror.&~o~.)~~CH 4 5c

BAKELITE BUTTON TYPE A I ~ho,,(' b ll t " it h snaP-Oa bakelite button," red or black .

~:: ~ : ~ : :,~dc·k. [ACH .. 42c 10 FOR . . ,.. . . Sl.7B

ROTARY SWITCHES N o n · shortlna type-' M ount !! ia M4~ holC'

~ l~ ~~icc~nel·Dy:. . ~ X~~ ~f W itl, blad: balo.:ehte

polnt ('f k no b . Avo , hrI: . wt . . 8 o z.

No . P oints

~::~~~ ~ [ A CH . . . .. 31 c 34 - 172 I

~::!~: I ~J [ AClt ... 4S(

MALLORY SINGLE-GANG SWITCHES Thne eturdy .witche. art desirn~ (or b3nd. twitchlnc. tODl' t'Ontrol. "hort wave, trst ~uip- ~lIir::t j ~~~~·x~ha~~t~~p~i~~h!~'!~('.7ert~ . t~r~;~ " bu"htDIl . \Vith bar knob and moulu~R nut. Low rf'III1"tantt wipinK-contat'l • . All I t~ .. ~ dla . ty~. have adJu.table atOP • . Shpa: . wt. , 8 oz .

MALLORY SWITCH PLATES FOR ABOVE For "witch. tODl' or volume CODtroL EaSY to read fiRUl'n On black. ~. boll'. For I V.· and I'''''' dla . • ,,;tchl".

FOR 1'1." BASE SWITCHES-30 ' SPACING

No. I!..z£.! _kJ~ N o. IT , •• M ... llln. N o. 'Typ M ... lrl;I.;g

3 • • 6°1 312 it"OT , • • • ~Jf9 ~ ]".'15 \386 Off I to 6 u,·,O 313 I to J ). · cat 380 I to 10 ],,·IU 387 Off 1 to 1 1"·10 374 • to 4 14 .. 51. 381 1 to 11 ]4 · 517 388 Off I to 8 ]4·10 375 I to 5 U-U 382 1 to U ].·611 389 Off I to 9

~::g Ut ::: 1 ~: : :~] Hl g;;::: 1 ~::g: ~:? I WoI~~~ to 1.·iQ 378 1 to' 14 -51. 385 Oft' I to 5 Jf - 670' . 369 0 to 100

FOR 1 11 / 16" 8AS£ SWITCH£S-20 ' SPACING

]e-,~ HJ t Co j n:, 1\ < ... I I to fO IUW'" 1 477 Oft' I to i 14 -15 45" 1 to " 14·'" "61 I t o 11 l e-I" 478 Oft' 1 t o ~ ] 4 - 151 .. 55 I (0 5 14·"0 461 I co 11 14-'" H9 1 Off 1 to 9 1. -1 456 I to 6 ] e -,, ' 4 13 0« I to 3 14-'" 481 Ott 1 Co 10 14- '51 457 11 co 7 14-'U 4H Ot'l I to 4 U-uo J91 Volume

;::~~ :~~ ~ ::: ~:::~ ~;~ ~;:: 1 U~'70·1 369 0 to 100

ltL·0;'Hi:"R1 ';lC£HC.~ . ~ .. ~ ........ . MALLORY JUNIOR JACK SWITCHES Mouou in x..' hol~ 00 pao~11 UP to \4" thiCk . EK(('lid. I~" back of p3n~1. With blillCk pointpr knob

~~~~~~~l:!:t~:~~~~~s!~~.~~tSa'i:D~~~~.JibX:: Z .. POSI T ION SWIT C H[S I ) .. PO S ITION SWITCH [ S

34~:'oo l ~~~;n I T7;~· 1 ;~! 34~:':ol ~~~ I T7~~· I$~ ~:2 34-401 SPOT 730 6'2 c 34-411 DPOT 762 .85 34-402 DPST 740 68e 34-412 3POT 763 1 . 12 34-40 3 OPOT 760 88c 34- 413 4PDT 764 1 . 38

MALLORY MIDGET JACK SWITCH A hand y. <'Ompa.rc ~in.lp.pole. flinalr- l hMw j~" !lwiech willi " " II .... "" III ..... •• 1,1 11(' 1.; I,:. k,." ... k noh. a n.1 1111'1 :11 1" "ul .. r :\1 ...... 1 .. ilU "'''1:1,. J'joI." 1 ••• 1 .. "" 1.:.I"rl ,: 111'1 . '

~: ~~'3LO . 1 ~[T~ ·· · I." :-;.t 'IIt! . \\'- .I ... ~ . 3Sc

CUTLER.HAMMER tOGGLE SWITCHES Uadltr~' rlterl ' Apw proved . ,~ .. diam· C1.f'f thr~aded shank ; bal.:eUte baw. ~ hol~ mount. ; !'Oldrr lup. Hnvy nlclr:~l plated finl.h . Sh .. nk ill

~"t ~SO'v. f~l' I ~5V: f.4,~~~~~ul~p~~J~~ .... 2 2, fo4;o~~:.J4~PFIl~ ~ .... 26, r04.~~~:.ilI?Pfrc3:~: ... 42, :04.~~~: . .,l?prATc!.~~· ... 44,

MIDGET TYPE Low~ SpST t y pe ,,"witch . I ~" bU.hin~ ,lotted to tak~ "on-ofl"'

~~ :~~t~i,.:eJt· ~\:\rri ~a~~,~.~ ~jr~~h~~: ::C:'10. 10 'Of' St . Sl • . 17,

"ON·OFF" PLATES

~~~:I-~~.i:~(';:onCI~~rt:!a:::h!d. ~:T51:c':~ '.or 15c . ... . 2,

POWER TYPE SPST TY~. Mount in til ..

~'hl~~PF~~ X~ , and DC Iln~. '250 V . 6 A. t2$0 v . 10 A . .. I., . 25 V . at 15 A . 5cT~w terminals . 8 oz .

::e~~ O ' ( . ) ~ ~ tor U.05·.4S, ::C~2 o~ oo(.1} 1~fo~'o S7 :~~'o 78c 3-POSITION TYPE SPOT Awiuh with off poalUOO J. rtnter. Ralftl at 3 A .. 125 V. ,.\ .C . I~" bushiDE.

~:;:::n";li~:.IAA .(!; Quality ,\\itch . 6 oz.

~:T5::C':.O. ~~~ . ~2: 1~ .. 24, 3"- 523. 3PDT Cu . Off Po,i -

~~~~I~~5N i.J ~ :--... ~~.K. ~~~ . 90, FEDERAL ANTI·

CAPACITY SWITCHES

S prln u "Dd ~,~~~~" ('onta('ts of sn -v er - pl::J. ted

&r:n~. ~ ~K~~ '4" Cam roll~r . \Vt .•

~: :::~: g~~~ ) 3"-"82.4 PUT .

8 oz . EA.CH

.1.65 1.90

PUSH· BUTTON TYPES 'bve n idtd-sU· ver .pr lnKI aJld

M" bakel't~ but-"~~~ID tOD . Ht, - hol ~ ntouatln • . I.ock i nl: t ypr mU!ll t be r~ka~ maDuaJly. Non-lockin J.!' tyPe is .,If r('ston n!: . JTor !4" I~nel. S lt ip pin; \\'t .. 5 oz .

.0 W EAR E H E A 0 QUA R T E R S FOR ALL REP LAC E MEN T PAR T S

SWITCHES - ELECTRICAL ACCESSORIES BAT·HANDLE TOGGLE

SWITCHES U 1Iid~r ... rit~n· ia.prel ~d . Shank.. lV dI.. m~t~r. Va· 100&; metal ba..e . Nickel-

H~yY !K)JdPT lup. ~h~:: !Ia~i~!d ( . ) rllted J am~. 250 vo1tl; (1) rated J amPfl... 125 volt • . WI.. boz.

NO. , T... I ':8<hlll for ]4-19$ as .. ' .T. ""3'2'C S2:.8§ " · 1" tS.P.O .T. 41c 3.6 14·U7 ·D . ~ . S . T . SOc 4.5 ... ". fOoP.D.T. 66c 5.94

ROTARY SWITCHES

U'~WP~~i!C:: a-F. S .P.S.T . rotary-

brown b a kelite "'nob and 6· I~ad!.

Rated at , a mp., 250 volts. 6 oz.

::Ct.~.~ ·. l~ ~o, S2 .. ~.1. 29c

HOP AX CIRCUIT· BREAKER PLUG "o ~ ltive lo w-co s t prote-elloa ag a lnl1

~~~IPfi'::lh~I~~:~: """herever etc-elrical appli a ncel, motor. , etC' ., a fe ulW'd. CoaN lIt tt 01 3 Itlandard line- pl ug with built

i a drcuil ·\.Ircalo:tt which OpellS circuit ",'hen o verload lhrralftls. Rftrta III the fl i p of • In-fl' . UD""""Tit'""' L a b . In.l)«'trrl . tJw

~~~t~ 1~(~~dC:i~~e t!a::rC;; tPCtrd . Shipptq .. t. . I lb . 34-7 30"' .mp " o"~ h .p . motOl'. 34- 731.. 4omp . . or h .p . motor. 34-732: .5 amp .. or Yl h .p . motor . ~:T7 33. 6 a~p .• or v. h .p. motor.

EACH ... 73. SWITCH

POINTS AND STOPS

~lr~:.Y ~~~~I tC!~~ ~ .. Jona . Su pplie<i W\th a y,. . nut .

HANDY GENERAL·PURPOSE SWITCHES ~. SWITCH \~ LOCK

G.E. MERCURY SWITCH Low · co.t mc-rcury switch for la boratorie •• build-

~r~l/k:r~en;:~n;tl~·~. e:~~ I ~~:'::~ Mouau horizontaliy; 15- move-IIlt"Ot for po!'l.itive operation. ,.

'34d_si ~~ .• ,a;. .~ .oz: . • • • 2 9c

flUSH-MOUNT PUSH-BUTTON

Pearl buttoa i ... held la ',4 lAo bole by .prin\ c! cul.M. Wt .. ,. oz . ::Ct.~ . 11 FOR n.l~ 13c

BAKELITE KNIFE

22.

CRL SPECIAL·PURPOSE SWITCHES C R L LEVER·

ACTION 1.o w-capaclty "i lv~ r· plated ~ont 3.~iau.

!~ri!~..!t~ from e-lther

~ide. tPositlve a ction frOID one aide and .prlal( return from the

:tlh:~~::.ruee7.!'~('~fo'!~~oJz~

PO~ •• II :~; ISh~~J;':G I Sh~:~~O 2 J . ..5J lf55 2 3t 1466 1467 4 2 1459 1458 ,. 2- 1"6 1457

~:TOIAOCH~~.i~~:y~ .. 59c AC SNA~ .SWITCHES

~~~~8::p,::~~~~~:B~1~ writer,,' Laborator)' IMP«ted . Ratrd tamp., 250 ' ·olt. . ii3ve !M)1~er lue • . M ay be Kan,e-d with .!IW1tch~! Iillted above. \\ t .. .. 0.1: . 3.-0.0.SPST. 14611. N£T. 35c 3.-0.I. .OI·ST.1469. NE .... . 44c

TONE SWITCHES

~~m~.n:~tl~I~~s~~· '1.~~~ : ~:D~~~'s~lr~ 11:G1Q~· . ~~-.r.~~;,cI~::~ ~16~H ... 29c ~;D~~~'a ~r~~. 1~~~ . .. . 3 5c

VALUES IN HANDY ELECTRICAL ACCESSORIES

'!~ ~©

Fig . A. FRICTION TAPE.

:12~'61.~. 2i2:;'. R oll ... .9c 52-61.1. ... <no R oll 15C 52-61.2. 8 Oz. Roll 21 C 52-620. RADiO-wiDTH FRICTION TArE . ~ .. nanow width. ",,,de "~al1 y for radio work . Elimlna t t"l' wastt" and tear ·

iNi'T6S f~t r.o l!. lib: . . .2 1 c

52-61.15. SCOTCH TAPE . HiQ"h

~(r~':,t~o~Ol~:.I~~;t.:'; ~bt~.~ .. 2 9c

J:N~?~N.FI~~~~li~ec l:!;E!: tension taP. Steel.plated back . With 6 ft. rubber cord and plua

~~Vcd~~~~b.II~ Ea-F~ . . 2 4c .7- 820. Fig. F . BELDEN EXTENSION CORD. 10-foot unbrea kable. brown. all -rubber ~xt~ruUon cord. with rubber Cap and double outlet tap. Famous Bdde n quality. built for lons ·Ufe

:ro~:: ~~~~t::rT~:' 5 1 c

ACRO SNAP SWITCHES

Frictioalf"M •• nap-action !lwitch. Low aC"tuatiou move.nent nnt.! p reH Uft'. One-piece Lhlde. !dh:er

~:::~et~~~lIer 1 ~~]i:fli.!I~~~t,,~ kated 2 amps . at 600 V .. J amP!' .

:~!~~ ~··t~5a~.~lIa!r;53.~s.¥~ except 35-002 a.nd 35-001. 4 oz .

FIG . A. PIN·PLUNGER TYPE

J::~g~: ~~~::::~ ~I:!ci : 3KC 3$·002. SPOT . ..... . $1.1 ~

FIG . B. LEAF ACTUATOR

JI:gg:: :::::::1:;=::11 :88 3S· 007 . SPDT . . . . ... 1.27

TYPE "0" OPEN TYPE Compact ~n&itlve SPDT openblade -,,,,itch . RoUer .Prine con.truct.lon; op.t"r3.tr. on vtt)' low pr-'!l urr-. katrd IS ampe 125 V.

~r~: 7P.~1':1l~ S~P~I~ lo!..~h: ~~~·8~'l:i:1':: .~. $2 .06

PRECISION TYPE MU SWITCHES

ALLIED RADIO CORPORATION, 833 W . JACKSON BLVD., CHICAGO, ILL. 41

METAL CABINETS AND CHASSIS ICA HINGED COVER

STEEL CABINETS ICA DELUXE SLOPING

PANEL CABINETS A ~ ultra-mod"rn Iltrramtlned cabinrt. BraulifuUy d~~Drd to meet thr mOst dillCrimlnalln, tastr In lhi" typr of eqwpmrnt. The.cabiart h~ rouaded cornrn with IIJ)e'dall)' dPSicn«l vrnulatinR louvr" On !Ud~ aJlowina free cirnJlation of air and di .... ~pation of hrat . Thr froal pantl ill rrmovable and filII tluflh with (ronl of c-abioft . TII~ pa~1 door pro\·'df'd 00 u~p of ~ homcs on 01 full·l\.il'~ piano

T~ top corn~ of thlot all.pu'1~ cabiD'" art rounded and trimmed with rt'd striped mrtaJ. Sjdl~ havr ·'Air· GatC''' type ventilator!! _ The ~ ha!t lou\TCd v~tilator. with openinl" at. the bottom. Eve-levd controb CaD be iRllt311rd. FrOnt panrl ill rrmovabtr !to that the' ChalUliM ran lJI1' att3C'lu;"rI to it and u!lCd as O~ unit . Cabinn.." and

~~." In~ur"'!i;!.: Yt~~h :~i~R:"~ rac'h unit :u listed bdo \\ . "'joi"hal in i(rrv ripplr. Chassill black

~!~::·r~ "~~:[:J!!!I~~~'back~~~:i r!:C:~!: i~.~;~i:t °l~ °cjl!:~!°b'a.!::.ndb,!::11:1~ ~~:o~t~fa~e:Jal''S. whl~h al!tO has an opr-Dlng on th~

bottom to allow (or leads, cabl~ COnDeCtion~ , ~t(:. Bottom h:ul four ~m~ fft1. Cabio~t9 an' available io .. OIn\·~nippt wn. Finished

~~!i~u~ ~y rrf:'!~ ~ri~\·k.~:ii~~~"'.:~~ :h~~~~!1 tt~:::~a~

Stook No .

8.-320 8a-321. ..-322 •• -323

Siz. H . W . D. a. 8. 8" ,.Uh. , .. 8 .. 1·b: 8#

12.18a12#

Shpg . I NET Wt. r:ACH 91h. ... - -SlJ§ to 11M.

11 n~. 5.1 17 H .. ~ . . 7 . 50

thr I C A ~IDaed rovn- and s1opiQI( paArI c-ablnft_ arr li~ted at rilCbt. Thr.w- ctus.,u" baM" are of on~ 1)lif'C'e m~~al C'OMUUct.iOQ wI! h aD aurae· th·~ blac:k rippl~ 6ni~. All cba:.ai. are drilled lor botlom platn.

o.'u.. I S'ze I P.n" , Sh' •. , Stan •• ,. CHASSIS BASES FOR ICA CABINETS Stock No. NET H. W . D. Siu Wt . Stock No. NET

••. 303 1 1. 2 ~ 12<20.12' 'h'8' 17 lbo. • ... 31317.sl :::~g~ S4:~f :::t:: :.i~ 1~ :~: :::~~ ~ ilT •• -302 . 2 8zU.8# 8.12" 11 Il>!I. . .- 3 1.2 3 .

HINGED·TOP METAL CABINETS Sturdy metal cabine'tll with piano-hi need Ud". Fronlpullcl, back panel or bot tom <"aD be remo,·rd ,.dthout dIsturbina the Int of thr

k~~r.!!ow~~!~Ea!~ to aotltt"mblr. Finillht'd 'D blad:: ripple I'!oamd.

ShpO. NET Wt. [ACH

---.u;;:- $ 2 .15 I

1Ib,. 2. 4 91t.1'!'. 3. 8

lOY, 'bo. 4.03 1\1"". 3.59 .5Ibo. 5.06

UTILITY "'ETAL CABINETS Cabln~U l or nrlOUIi UIl("11 such all hou!liDC Input IItal~ , mjx~. tran~ivrrs. amplifit'"N. moniton, ct.c". Front and !.Jack rrmo\'able and fa.,.·· trnoo. to cabinet with

~I:~t!~~i~:bj~~ an'!' .hippMl kooc\r:ed~owu . I~ty a,.l"t'mblcod. Have durable blac.k ripple ~namcl finish,

, 'b.j $0.76 j :l:: J2t • I.... 1.4 51.... 1.8

t:l: U! CHRO"'E HANDLES

GRILL CLOTH Black and lold iDtuwO\·en.

43· .. 01.12.12·. NET 18e 43-802. 12.24". H£T . 29c 43-603. 24.2-4". N£T S5e: 43-1.2 3, W"I.co NOD-Prneuado. Cloth 8c FabriC Cem~ni. Per Tube. NET ... 25c

BULB COLORING KIT - ' - ..

irJ'm:irllf:n Kit contai ns one botele tllch: CrHI1. Blue. Red. Brown; with bottle of sol-vent . Bulb"

:~~~lo~tT~.~ . ~~~~.~~ .~. ~~~.e: .29c

A"'PLIFIER FOUNDATION UNITS

Clever ckfllil1l and .tyUna arr Incorpor:atrtl in th~ alDplifler fouDdalion ualu avall<a.ble 3t am:uiDa:ly low pries. Top CO .... N!I h:ave rounded cornet., and tronu ore embc-IIi!lhed with polillhed "Air Gate" vC'QtiI3tor.l. Adcli .. Llonal vrntilatJoD I. obtained throua:h the

~~ ~~h:1d~IJ ~ t~~~PTt:r ~!'I~ i. very eimplt" to .... 4C'mbh.· . AU P:I.l"t" ~ perff'lrtly fiu..ed . Rrd IJtrlprd moukJinils and handl" aivr altdltlonal bn.uty to lM .. ~

ra:f:.:I ,':: ll·;,ro~tar~~ ~i':vt:~~;~d.t "iz~. S t ook C ••• 51... Ch ••. Shpg. NET

No . H . W . D . Ht. Wt . [ACH

:::~~~ :::t ~Y;" T I~ n:: S~:~~ 86- 372 'h17a 7· J~ 11 It. . 4 . 85 86-373 ~1·hI(Y J" II Ibtt . 5 .29 86-374 9a:17aUY J. J.4 Ibs. 5.59

STURDY SLOPING.PANEL METAL UTILITY CABINETS

=1~onb~~I~.df'~P~~~~a]i:a:~i~~: and very attra.:th't In ap~f3n('"C. tdf'al lor Ute a" Ipo:a3ker c-abinn.. ... o.cillator C3.._, ".... €'rivrOl, ampllfir-rll. nco Haw rounded cornl"f"W. Jl'inbbm in marinc &l'Cy ripplC'<na1l1cl.

StockNO' 1 Overall Size I Wt. / NET &e:'3iO 4lh"JI . -I%"W. 4Mr."O 2 Ihs S'i"':"fi 8 .-3.1. "'!tS"H . 1~'W."iA"O 5 Ih!I . 2 .26

ICA DELUXE METER CASES Dnignei to halmonlzr with t he t.reod of modern ~t~mlined equipml"Ot- Flnh.hed in

~~i::':frt!:ithri~!':Jt i~la~ atripc!d mt"t.a.! band. lIa1 neat roundl.!'d top. A"ailahle for 2" or 3" metCTll. IdC'al for midK~tll[W"alc.er c-a.-.e for Intet"eonn. Sbippiq we'~b ... 2 I~.

PORTABLE STEEL CABINET Idf'a) ror hou"jn8 O!Icillaton. trall!llrriVC!TIJ, t~t equipment,. etc_ Both front and back pan(.'b an- rrlDovaWe and are held in

~!hlcl, :;!~u;~~i!d~~:~~~~ nM; is vrry sturdily built of me'tali h~ rt:inforc-ed comers and edal"!C. Supplied with a convrnjeDt leathn- c-anying handle, The pC"rlect houJlink for homeobUilt portablr r'luipl'Dent . Cha. ...... i5 Ij"ted below ~uit.:lble (or both sil'~ of c-ablnet!'! . Finished In bl"d;. ripp~ c~mcl.

"'ETAL SPEAKER CABINETS Dnalimed to conform w ith

~r.slm~~~m ::~:na~~ Ml"tal griUe firmly tach4!d, will not and pro\·idC'S prota:-tion for C'OlW. II .. ! mt't.ai carryi n ll top. Finillhnt ripple enamel . for 6· to 12" l'J)raur •.

WRINKLE VARNISH An attracth,lP. rnadera wrinkllP finlllh

!\ir d~~~':.!.-if:~iiel~i~~8br~~~ or spr:n· , fa Ili. popular colou. WC'iahu: ~ pt ., IOoz.: I pt., I ~ lb!..

43-000 Black. 43-01.0 43-00 1. BrowD 43-011.

% Pint I COLO R , Pint

43-002 Green 43.01.2 43-003 Sil\'u Grey 43-01.3 43-004 Red 43-014 43-005 Blue 43-01.

t'A~ltit ..... 2 4cl~~c';tt .. $ 1 .18 CRYSTALLINE LACQUER

CC'lVPnI mf1al. wood or olh.,. matrria\. nriNl in 20 minull"ll . F3,.y 10 apply . \\lill gin ",ria l productJl a prol~!Io&ional loolrri. . In three colurL

Black .3-020 43· 030 43-040 ~I ~ P int I~P~ I- ' ~Int _ Crey 43-021 43·031 43-041 Brown 43 -022 43 - 03.2: 43-04Z

'Ii Pint . SPK"ifyColor. Wt.. ~ lb. HET . . . 21C

n·:~~es~!fecS~~"·~~~~·~ I~~ . ~ ~~~· 1 ~ 11 ~ 42 FOR VICTORY BUY U. S. WAR SAVINGS BONDS AND STAMPS

RADIO-BUILDERS' SUPPLIES CHASSIS BASES

Fold«l aD (our 8idn. ThoM' tltarrffl (.) ha\'~ open ~od !'l. Mal~rial llhortaKt"'" may makeo it n~C'SS8rY to tupply al teJ>n .... t!vr platinc or douh. 4~-.20. Volume Control Bracket drilled and formed. NET . . ...... 6c

IlADIO PANELS A complete Ii Dr of M a90mlr aDd stm panrb for all radio and electronic p urD08H. Wrinkle fin1ah Panelll are- of ~ .. IIteel. with black wrin I.:. Ir enamel finish.

~: ~!':~~~ ~~~~II~ itfDr.qt.t~i~ ~:~~ black ripple. OnJy ty~ and lUzrs shown below are available .

51:1_ , I noh ••

f % .e V, .1 'h e

T.rnpJ.t. W r in k le f"lnlah 5hpa . No. NET No. N£T Wt.

::::g~ $O::B 8S·_· •• ·:': · ·50. ·9 ~ :::: 51ze l Wrinkl e Flnlt h 12 ' M.'~~~I~.on lt. p h pa. In. No. I NET No . I NET No. NET I_Wt.

hiD 86-740

1

,s o .3 8 1i6-7 s0 , s6.~6 ii6:77ci $0.38- '"iii>:"' fal2 86- 741 .43 86_751 1 .~O 86_7711 .42 lib.

~:;~:~ 'h' 86- 502 .55 •• -852 .13 2Ib". 5y, .10., 6.13,3 hh2 ?9a2 7a11a2 7:1112aJ ?:I U.z 7.17&3 7.23_3 8 . 11.2

10.11a2% 10.12_3 1 0. 1 •• 3 10.11.3 10dJaJ 13:1111.3 12. 11.3 10. 11.. 13.11..

S6-503 • ~V .6- 653 • 6 2Ib,.

:::18~ :53 :::::: : g i Ie:: 88-50. . S S I .6-6S6 .6~ · 2 II).!I. 86-507 .62 86-857 .7 J Ills.

~:~: r:::~:: :I~ :::~~: :43 1::=~~: :~g ~:t . 7021

1

86-745 • 6 .86-755 .48 86-775 .68 JIb •. Ball 116-747 • 988-757 .4786-777 .70 JI~ . 9atS 86-748 .66 .6- 758 .46 I .• .••. • ..•..... 2 lb!!.

::=:8: :3 7 :::::: :~5 l:~:

.8-510 .72 S6-.60 .94 J Ib.t. S.-511 .S~ 'I •• -661 1.03 fibs .

::=:~~ :92 :::::~ 1 :g3 ~ n:: 86-514 .71.6_.64 1.0~ 511>0. .6-11111 .7 •• -•• 5 1.19 51bl1 . S8-111. .1 .8-88a I 5 5Ib,. •• -817 1. .6-•• 7 : 5 61";'. .8-51. 1. ..-.6. 1. 5 61l>!t. •• -S19 1. ..-868 1. 5 61bs. S.-520 1. 1 •• -870 1.25 (1 11M. 8.-521 1.1 •• -671. I.S6 (I lb.'!.

STEEL RELAY RACK PANELS

RELAY RACKS GRID CAPS • . GRID SHIELDS. PLATE CAPS E1I:prrsaJ.y dC9i&ned for prof_· sionaJ·ap~ria" transmitter or publiC addu· •• Y!il~m iIWlaIla· tJons . Sub!ltantially built of ~. preaed sted with spot-'A-dded COrDen for eTlra heavy-duty St"TviCC!. Sturdy construction !U' surra mazimulD rillidity and

A complrte line of caIM (or all recel.vina; typr and amateur transmittJna; t)'p@' tul:J.t.s.

~~. ~lIi~~=::=: ~I~: inch rack panrls with either W . E. or Amateur slottina:. Holrs are tapped for lo...J2· machinl:" ,u~rew •. 'I-I" has heayywroua;ht steoel base 1~ deep.

~~~~·i:~·t 9;i~4~:, s!c¥e '!rc. Furoished in black.ripple fiDillh. Shipped in knock-down form.

~d~lt~ f~';~aa~~-=:-6IY a~'d iLQ ample !lupply of panel mount· ina: screws a,nd cup waabefl.

STANDARD TABLE CABINETS

- AB

8 o o o o

-0 o o o

----r.: F G G

- G-If II

ALL-PURPOSE METAL TUBE SHIELDS Pollidve-fittln. metal tube IIhieldll . Repla~ difficult-toobtalD mellll·typc tu~s by Dl~dy IK"lecullX: '·GT" equivlllent tubr1l and appropriat~ 8hleld coverllll"ted beIO \\ . -OpeD top type 8hJeld . "Clotted top type "hield. rGround clip only . tWlth call-- Ilnd J{found e lip. For tall battery-type

~~:-lUt!!~~~F~ ~id t~r: r~~~dcl ~;~y~~!~~W~~8~:

~ S.( ... I .s.

.s.

.s.

OIijmlilllli~nimn:> R~!t!~O~P!!~:~" BAKELITE TUBING IIi&h-Krade bakelite tub-InK. \,"'all ~·inch thick. JUc::eUent ror ..:oj&.. etc.

AMPHENOL "912-B" STRIPS

::::n~~~e·u~r~~eCC:;~~ck~s:n:~~t~f !I~~;~ a;~il~=r.:i:=::> :~~i~a;~· .. rCo'!.i~~I;~:~:d

to a;ive ezceptional

c:=rV :~~~f fg orfiv'::?;!; for any rrpla~ent job. E~tial for pVeT)'

60~~8~~PK~'~" 10~'':E~ : , . 24c SPAGHEnl TUBING Heavily varnished ftnJble tubinK with 5.000 volt a' .. ~r· age dlC~lectric ·"trenKth. A~ eommodate5 wire slze5 up to No. to. Wound on handy rlpool!o. in 20 loot I~Da;th!l only. Shpa; . wt., I lb.

:;:~:~: ~c.k. ~!JH .. .. 73c

Siz. P.r &' L.ng t h 1 F oot L.ngth

~~ NET StOCkNO ' I~ I' 43-501 ~5C 43-502 46c I !n' 143-S11 3c 43-512 60c 2· 43-521 9c "'3-522 72e 2 1;i· 43-531 4Se 43-532 S5e J ' 43-11"'1 52C 43 - 5"'2 98c JV,,· 43-551 59c 43-552 .$1.10

FENOLINE TUBING Small diameter F"eooliDe tUbina; of fin~!it Quality . Bl a ck IIDloolh polished flnl!lb . Mol.lure-proof. E;uy to cut. W walls.

S too k No. \ O uhlde D I •• \---.!....! f't :--

:~::~g ~: ~&~

arc 12· 10na;; cas)! to cut. Ava; . • hPK. "'"t. , 6 oz.

Sto o k No . S iz . N[T ~-5- hi' z Yc. SO: ~ f 71-716 hi: : ~: 71 - 717 .25

71-718 U:' 11: l' .30 71-719 ~:: ~: . 42 71 - 720 .64 71-721 a: : l'I' d~ 71 - 722

"'12-B" RIBBON .oeu ' thic k. 1,4 ' wide. For wrapping cable jointa.sptiC("~.and'ezpo8J("d vol~ PQIDb. W~ld. toa.:etht"'r with cement listed below. Ribbon

~i.'_\~~.'1-~e:tl~grt. ROLL • . . ... . 29c 7 1-735. Ceme-nt. 2 oz . bottle . . 29c

ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD_, CHICAGO, ILL. 43

ALL-PURPOSE TUBE SOCKETS QUALITY SOCKETS

" U~ in teR i D.~tnua("n~. amplifiers a Quality ~('~n·erl!l. Molded black ba.kelite. with tlsht pippinl c:ontae

REPLACEMENT SOCKETS Trpe R5 . Molded hiah-dirlectric bakelite. Remoyable adapter plate pennit,.s replacement of any wafer eocket. - Low~lQ!U. Mtw: . «nters I Yl' to I ~'. Shp.\[. wL . .a oz.

No. t 7 P. Prone EACH ii:ooi asr- --.-7C" :~:~g~ :~ ~ ~~ ~o-oo7 RS7S 7S 7C .a-ao' RS7L 7L 7c .. a-au RS7C 7S-7L 9c "0- 008 RSS Octa l 9C .c0-010 RSIL Loktal lIe co-uo RS8LT- Lokta l 18e 2:!!.- RS9 9 1 Ie

MINIATURE SOCKETS 11. '" .nd 5 .. -7 .. 6t 'w IRS. IS<. ISS.

toJj ~~~Ji~5~ fiu HytroD Bantam Jr .. HVtI), HVIIS and HV125 lubell. 71-5" fie.. RaytheoQ

CK501-2-l-4 IN!1in. MouDt io %' hole, With .nap-<OD mouDtl n&

~:lp w~il~h r,e ~~~~;::ne~t No. Y),P. EACH

0&0-120 7S.,. •. ... . . } 10 .0-122 7a-sH. ..... C .. 0..123 7&-SP . ...• , "0· 121 S ..... 7P . ...... . 21C

SHIELDED CONNECTORS }detal 5D31>0D caD.t. 1~· :I; Hi.I·.

MALE j FEMALE N0. 1 Pron, No . I Prongs U·$O" .. "0·52.. 4 "0-505 S 40·S25 5 ... ·$06 6 40·S2G 6 U-SOJ 75 40-527 7S "a-Sal 8 Octal "0·521 8 Oc-tal

:!JH .. ............. . 15c :~::~~: !t~::Il~~~:. :: ~rg

ri F its connf!'("tortl above. ~ CABLE CLAMP

, ~:.-=~~~~:;~·:~. 6c

"M"" SOCKETS

INSULEX SOCKETS

~

MILLEN SOCKETS

STEATITE ~ HiKht':r steatite ~ bod y PTOV ides maximum ID.ula- • Uonbt"twffDCOD-tactA aDd \·haaia. Low-10M. Wt .• 4 ~. No. Contacts 72-060. 4 t ~~:~:~: ~ ::JH 24c 72·06". 8-oct ;u

ACORN TYPE

"Clillcher"

AO~~rC: tt~·~ !lOC"lr.:ets. Pre\-"t':'nts tul..M..~ (rom JOOSoeninli. Beryllium copper" •• ih .. er-pJaled cont3c-t ... conform to Goveromftlt stw'Cific-allons. Hi&ht':'n quality <.'eramie low 100II~ baR; di;;uut'"tCr.l 'M6 ••

~1~~' ~.;~. 1 ~;'l :~: ..... 66c

OAK TYPE WAFER SUB-PANEL SOCKETS

H igh CTade wafer type s ub-panel tu~ !lOCket. of lamlnatrd bakelite COnxtructJo lL Sturdy and f1!'liabl~ with fully inaulalrd top. COntact. aft fullfloaUna t~. Itdf-'-llla:ninli. ::and of one- pirce conIJlnlclioQ foe low rrN.t~ conn«Uon ; make Aidp.. \o\;t"ina contaC"t with tu~ pranKS. Cent"" n\'et !lIP curf"ly holdM lamln .. tion.. loceUln. Dr.leT a Mupply ror .e~ral replacements. ShP&: . wL. J ut .

TO'VI(W

STANDARD SIZE

HAMMARLUND SOCKETS

ISOLANTITE TYPE Low-10M holantltt': MOCke' ..... iCh

~d." r~~eDaCnyd a::I~tJ~~:.a~!:~ atant r-tAtlvity aDd po.dtln side-~ppiQ& coDtact. eli.ruinate notllt" .

a:~7.°~~~ig~~~:nY!.~~.~ No.

72-320 72-32" 72 .. 322 72 .. 323 72 .. 32" 72 .. 325

Prongs NET 4 prona .• . .. 36C Sprooa . '" 39C 6 prona: ......... 42C

~ ~:: ~~!n~il) : a ~~ 8 prOD&: (Octal) . . 48c

UHS-900X ACORN

Locks tube in vlac-e .. for mouDlin& iD " ..... ,~r-o • ., any position. Halt si\ver.platnl beryl-lium contacts; "ho-O" IJU~ l~

~1::!t1~r ::~llet~~hiel~~~.nt~1j diame-ter; I~· rnountinlil: ~n'ft"~ .

~h:.!I~3 3~·. "HET. . . 90c

MIDGET SIZE

NATIONAL SOCKETS

TYPE CIR l.ow-Io.. holaDtJte !lOCket. Two

::.~ s,ll~::~lfs,,:r:Dd.u~~if:dsitJfo:. unIVersal mouDlIu&:. Ideal for low_ luq recev~r and trana!Ditt~ circuit.ll. Shippi.n&: wdaht. " oz.

~ I P··"·· I~'--I P,on •• 71-100 " 71-Ul 7 L 71·101 .5 71-10" 7 S 71·102 6 71-10$ 8 Octal

;:lH .................. 27.

TYPE XC Low-10M I!IOIanthe 80Ckets for u~ In H .F. recelyt':'u aDd io low pawn.l"K~ of nan.·uDittt':'N . UaVf' "tur-

~k~urei~p N~t'~~c",~· · ~f:oi~ *luare- type . othena 3l"1!" :iIJI illu.-trated . Shlppin& w6&ht ... oz .

71·111 " l·lU 7 L ~I Prong. No. I Prong.

11 · 111 5 l·lU 7 S n.112 6 1 .. 115 8 Octal

r:JH. . .. ... 39c 71·1.18. 6 PTODK (For Colis). N[T •....•... . . . ..•.. .. •. 51C

NATIONAL ACORNS T)'pe XCA. For u .. wl.h Trl.~.s. Five COntact clil)tt on round bolanute bal'lC. Shippin-c:

7~!~2~_ozN£T .......... 99c T)'P. XMA. For P.n.od .... H3.!11 .,quare topper ba.'It'"; all con-

~r~1bH~~1T ... .. S 1.32 JOHNSON SOCKETS

73-"90. UX BASE . For U!M'" .... ith 4 prone. UX ba!'etu~. Por<.'elain iruu latlon . ShPR.

'N'E{ '.~ SOC 73-"9". SO w.tt socket. Porcelain b3M with heavy dual p hOtlphor -hronzetontru;ot rlprirlKM. Slip\: .

';;!ET~ . ' ~:.......... .73. 44 SPECIALIZED SERVICE FOR INDUSTRIAL AND GOVERNMENT ORDERS

PLUGS • JACKS • CONNECTORS

FIG. A. STANDARD PLUIO Take two sets of cord UP!!. Have mold ffi bakelite barTel. Ba~1 size ; %' dia_. Iht"' lou&. Wt .• 5 02.

:~ ::g~ : :~dc.kEACH . •. 32.c FIG. A . METAL SHELL TYPE Bri"ht paliahcd metal shell for "hicld lne pUrpo8Ie'. Barrel ~:

~~"-:g5 . 2;:~TI~~~ : .~ ~: 53c FIG. B. STUBBY TYPE PLUIO Shi f"lded type plu&: for Ulte In lim' i t rd 1Ip.ac1!. Polillhed mdal .bdL. S uitable for portable ampUfiers.

:~~~~. ~~;.~~~. ~ . ~·" . 42t FIG. D. CARTER FLAT PLUG BakcUtc. 1 J.oM' dia.. lAO' thick.

~t~~~~. ":.C:T~·. ~ . ~~ : .. 39c

FIG. C . MIDIOET TYPE PLUIOS A ~landard shank. radio plui: ""th estr3 Khott barrel. for UtIC where front of panel !lpace is limhM . Jolt s atandard radio iack. ComPact. 2Yi' ovcraU. Bakelite b~1 Icneth ."' . Dj3. )MO' . 6 oz .

:~ ::~:: ~~·dc.kEACH . .. 32c FIG. C. METAL SHELL TYPE HOo" a lIU!tal shell for ~hicld'u. PUt~. Barrell 'A ' .h.'. Otberw i 1M' identical to midKCt plugs

~lIi~6~~~eN ~v; : .. ~ . ~' ... 38c EXTRA PLUIO BARRELS

"1-650. Black for 41~. 1 3c "1-651 . Red for 41·601. . . 13c 41-652. Mdal for 41-605.35C 41-6S6 .. Metal for 41-610.26C 4 1-.53. Black for 41-625 . l3c 41-.54. Red for 41~26 . .. l3c 41-655. Metal for 41-6JO.24c

HOWARD B. JONES PLUGS AND SOCKETS Bakelite unita with mdaJ a~ and cable damps. Ha\'e en.ra be.a,,·y coDtacta and uaht &riP. for h~avy-dutY u~. Small size with good !lII!'paration bet"""ff'D COIltact.s SbipPi.nlii: weight. 80t:.

No.of Pl UG ' Cont 8ct.I S t ook No.

2· 40 - .02 3 40 - 803 • 40-804 6 40 - 80. 8 .. 0 - a0 8

to .. 0-.1 0 12 40-812

JONES " 140" TERMINAL STRIPS

Barriers betweea terminal. In~ insulatioo. by increas i ng leakaK e puth. Has many appJication!l . Molded bakeUte base %- wide. IJoY. bllii:b. 5-4ili~ .arw_. b oz.

No. I D •• C.'P·"IT .... ' EA •. ~ 2-Terminal 2·140 TIC

"1-801 3--TerminaJ 3- 140 41-802 6-Terminal '-" 140 ~~

S oc k .U NET ~:~ N ET

2 ~e 40-•• 2 ~ 2 e 40-••• ~4C 2 C .. 0-•• 4

r~ 40-••• ~?~ 40-••• 5e .. 0-•• 0 Oe .. 0-•• 2 45c

FAHNESTOCK CLIPS

ib~®h T.~ A. Sttew Mount. Sincle. T.~ B. Screw Mount. Double.

Stoe. I I I P •• __ N_o ._ T,.p. La t h . ~ 4 1-701 A I- lOc 61 - 7 08 A v.~ ' ge 61 · 7 1 1 B tv.' 31e 41-718 B h., - 29c

AMPHENOL PLUGS AND RECEPTACLES AC PLUGS-RECEPTACLES

.~p~~,~" FLUSH TYPE PLUIO AND

RECEPTACLE Recealled mountlnK. BakeUte peru are mounted In tlt("el plate with

!wIold.-d bal.:ellte . Fie. A mounU niCkel-type

:~~nt~~t;i :r~te~ln!A.!'I~l!t!d~ if~N I e ~nI~h~ N FI 1 T N ET "Electrical Standard" mounUnK 40-:751 1: ~l.:i: J crnters. -III polarized. Dia . 1 v.-.

'.'.:',77'7 AA "~malal': 15. Mt&. ccnters 1%·. ... ... Stook NO " T,.p. NET

40-580 B Male 40-685 Male } 40-Gll B Male- 1 6 'he ~00-_.8 •• 67 MF"~':'~_ 24c 40-612 B ~emale ____ ... - ...;.....:.;:. _~_

P LUCS FO R A BOVE. Me1.aJ-encaaed bakeUte ronnectoNl ,,;th cable cla mp. po r plu",,,in.,,, into a ll /\C ftu !'h type r~ptac1es above.

:g::;~: ~~i:~,~~ ~~:: I :~T6lfc:~~~I~: ...... .. .. .. 24c

AND JACKS

MALLORY LONG FRAME JACKS Sturdy IIt~1 frames and beavy photlphor-bronze :l;ringdatj~ w;r~::a':c!taac~d a~~:&n l~~.ure pomuve 3~60.~. I. Ope, Clrcui, Jack . NET. 35c 3 .. - .... s.. No.2. Sbonina Type Jack. NET .. 44c

©

34-.... 2. Number 2A. Cluaed Circuit jack. NE T . ....•........ 44c .. s.-055. Number S. Clo&r<i Circuit; Make-Break Jack. NET .. . . 6 Sc

2·PlECE CONNECTORS.

Of two· piece molded bakeH~

MALE FEMALE No. Ip r o n g• NO'jPronv_ 40- 504 4 U-U ' 4

40-U S S 4O-U5 S 40-6 K 6 4O - U' 6 40-501 8 ... --1 21 8

~!JH .. . 21. ~!lH . 27c

PLUIOS SOCKETS N o. Ip ron g- No . \ prong•

40-5 54 4 41-554 .. 40-555 5 41 - 555 5 40-55' 6 EACH . . . . . 3Sc

~:lH ,. 1 8c ~E~~: . ~ .~4i~

BAKELITE PLUG A sturdy. aroat. tw~ pieft molded bakeliU' connector plul( 'or !'peaker connections. dC. Top UQ8C1"'rW8 fOr

, easY a~mbly.

Stook N0'1 Pro ng _ 4 0-654 4 I EACH 40- 655 5

:8:::; ~s 19c 6 0-858 8 ( Octal ) • • ••• • 25C

NU-WAY SNAPS, STUDS, AND LUGS

ALL-lED RADIO CORPORATION, 833 W. JACKSON "B!.VD., CHICAGO, ILL. 4S

PLUGS ·JACKS· POSTS· CLIPS ALLIGATOR CLIPS

~~ Banana plue fila back of clip. 10-sulated tyP4! with red or black handle. Provtd~ eood firm ariP. ld~ for wo rk in ti.ht places. NOD-rustiDg finish. We . 1 oz.

~:;.2l,,~.rI~ .. ~'. 2: ... .. 4c 41-271. Pkg. o f 12 ••... • • 43c

FIG. B. 2!.4 ' INSULATED

:~:~:~: ::-'~k. EACH.12c 41-281. Red. Pkg. of 12. 41-2B6. aleck. Pk&. of 12. PER PKG •. . ... . . • •.. • $1.02

FIG. B. 2%' INSULATED PlatN metal grips with Insulated hand II!'. Ha!t iD~rt for phone Up!'.

~'f..'"3~~~t~:~~&. wt.. 1 OJ: .

• 1-305. BI.ek. EACH .32c ... 1-30 1. R.d. Pkl!: . of 12. 41-306. BI.elf. . Pka. of 12. PER PKG . . ........ ... S3.45

BINDING POSTS

FIG . A. [BY JUNIOR. N ODremovable acrew-type top. !.1:' dia. Screw is 6-32 x !.1:' lana; . With

:~~~~~U~~~~" ~[OT· ... 15c FIG. B. BAKELITE. Solidly corutructed of molded bakdite. Y.t' diameter ~d hag brass threaded in !lert. NICkel-plated lKTew and Dut. Len&th overall. l)i,(' . Shpg. wt . . " oz.

:t:~;g: l~ki:ACH .. . 11 c FIG. C. COMBINATION FOR BANANA OR TIP PLUG. Top takes banana plullt; shank accom· modatetll phone tip or win. \'lith 011 ~uirrd hardWare. WL." <no

~.I.~~ Pkg. of 12 Red "1-330 "1-331 .lack "1- 335 .1- 336

INofT 14c 51 .5 1

riG . D . METAL DOUBLE PO ST. Sturdy sprina·action 1 V4 . double ID~tal blDdiDI( post. ~. diameter; ".. mouOtlD& crnte-ra.. Bottom or po!tt includell an 8·32

:~C~~72~~'i:i~~·:. ~ ~~:. 1 Oc BAKELITE TWIN JACKS

FIG. A. T"in tip jack a&'OCmbly , mounted OD laminatt!d bakelite !!trip 2' lana by ~. widt"'. avail· able as indicated below. ",t .• 2 oz .

TYPO , E ACH , Pk8' of 12 SpOaker~~ Plain "1-379 "1-380 NiT --7-c--~

FIC . B . MOLDED TWIN J ACKS. For use "ith spe"".akerll. hrad phon". phono·pickupe. H r . lIa\'e Ilina:le mountina: !K"rt'w molded Into bakelite. SiZe. IIh·s I J.iI". For cord dDS. Wt .• 2 oz .

~t;.~.~~· .~I.~I.n .. ... . . . . 24c "1-390. 5pullor. NET . 32C

SHORTING TYPE JACKS CiraJit cloM'!! when tips are re-moved. Similar to Fill . B. SnJl:le

:1'!.~!;:'.!!~:T: ~.z: ..... 2 4c

BANANA PLUGS AND JACKS

FIG. B. INSULATED TYPE Scot !ICT_ holdll wire in place. Siu: 1 ~ •. Plutic iIl8ulation. Ha" 9OIderlt">03 "crew connection ... oz .

SPLIT TYPE PLU(oS FIG. C. NON-INSULAT[O . Positive act10D contact proDp prrvt"'Dt fault)· elKtricai continuity. Hexaa:onal bod, !'ha~ fadU· tatrtl ~5.htenina:. With two Dub.

~r~Jjb: r..!C~ .~~: . .... 6c t~o"lo~: .~~.I: .~~ .1.2: :: :$5~:: FIG. D. INSULATED TYPE

Solderlrltll type with !let lK"t'ew that firmly lM"('ures wire lo plua:. Hall black iruulated handle. Flh banana jack . Size. 'XI-. 4 oz.

Color 1 [ACH I Pkl . • f 12 ~ 41-42".~ .1__ "1-"30 ... 1 · ... 1 NiT --I -I -c - --.-r:Te 100 For . .. . . . ... . .. .. $ •• 85

With in.'1ulated shoulder w3llher~. UIW' on metal pam-I!!. cabinet!!. etc. , lO Inllulate drcuits. Soldt"r.lua: trrndnaJ and metal nut included. stu: "'·iDChe!t 10011:. Wt .. J oz.

_CO~OI' ~C~ ~P~'..!!.E It.. "1 · "75 "1 -"76 .Iack .1 · ... 0 "1- "81

- "-1:1' --ac-- ~ BABY JACKS

FIG. H. F or Baby Banana Plug!!

~~~ ~1~:dnS;Z:~t~'~~'b~ lana: . 41-000. EACH ........ . 6 . .. 1 · 001 . Pilg . 0' 12 . ... . 6Sc 100 For ...... . . ...... $".85

BABY INSULATED TYPE

~1~I "'k. 'Of~ Rod .. 1 · 005 "1·00. alack .. 1-010 .. 1 · 011

--..n- ----yc-~ 100 For .... . .. . .. . . $5.65

FIG. E. BABY PLUGS

:\D~4[~·lJ~~~~Y. j~Ck~· . 5 c .. 1 · .... 1. Pkg •• f 12 . .. 5 .. c 100 For .. . . . .... . . . . . $ ... 05

BABY INSULATED TYPE eolor E ACH I PU.of12 Rod .. 1 ... 50 1 "1-"51 ~~~ .. 1-"56

NEr 7c 76c 100 For ........... .. . $5.65

TERMINALS-TIES-CONNECTORS

~~~m l~~ ® ® ~g @ I ® ® ©~

rig . Oo, c,lp t.l on Stock No. Pel 00.:. A Insulatal Tie Terminal ; Tie Point. .. . .. "1-751 23c B Sinale-hole mount. For V4 . Dia. FU!tt!l. . "1-756 14c C Te-rminaIIUgs. ~takf" your own lIuips . . "1-766 4Sc

~ :irl"f!.~I~~:t~~i~i;~f.~!I~D~~ct... :~:~~: l~~ F SInKie--luK mountinK "trip.. "1-781 ll c

.. 1 -785.Flg. G . Un1\,l'ual lItora"e battery blDdmK post . E ACH . . 19c

TERMINAL STRIPS

~. thick bakelite atripl'l.

T" m. EA. N··I NET 1 Doz. N··I NET ~1,u·I1' 12c ~1·U1 $1 ' 30 3 ,u-I1S 1 Sc ,u-I16- 1. 2 4 ,u-no lac n-'21 1. 4 5 ,u-n521c,u-US 2.27 6 U-U121c 41 -131 2.27

BERYLLIUM BANANA

PLUGS t't t Mad!! of beryllium i . copper for r.ztra !'pring. tenl'lion and durablUty . U:wd. by U .S. Sianal Corp8. Rivet lype shank

U: ~~:~hr!!.~a1~ J:'1i o"::ta:k

.. 1 · 070. Rint Type Ea .• 12C "1-071. Threaded. Each.21c

HEAVY·DUTY STRIPS

Bakelite ~llaBI~ strips with ~urely fas · tf"Drd krew terminahl.

Stock No . Torm. EACH 41-ii"fS --2- 1i5'C

"1-880 l l7c "1- 885 " 2Sc "1-890 5 29c "1-895 6 3lc "1-897 7 4lc "1-898 S 47C

FI G . A. Mf"tai tip jack. lA' tntf. hole; takes %' panel. Afford po .. _

~V{_~&'O~E~~hH~P: .. .. .. 6c "1-101. Pkg. 01 12 . . . . .. 65c F I G . B. Short compact type. Fits

.a1~10~~OE~~~t~.~ . . . . . . . 6c "1-106. Pkg. af 12 ...... 65c FIC . C . INSULATED TYPE. Ideal to fully insulate dreuitl!l on metaJ paneJl'I. cabinets. cotc. Fiber washer aDd nul are included .

~olol' ~' Pk9 ' 0' 12 It... "1- 110 "1- 111 ... ek "1-115 "1- 116 NET --9- C--~

FIG . D. BANANA OR CORD T IP JACK. Combinat loninsula t ed jack for IItandard tip or banana type p)ua: . lA- mts:. hole. Fiber washer and nut ~ included.

~' .-!.ACH_ \~ Red "1-130 41-131 Black "1-135 "1-136 ~ --I -I -c- ST:I9 MALLORY COLORED

TIP JACKS In!!ulated . For "'andard cord tip. y.- mu:. bole.

:~:~:~: :~adc.kEACH ... 12c "1-155. SET OF 2 . . .... 2"e

ROUND HEAD TIP JACK

Bakelite top and washrr

~~!i~ant!r ~:c~h~~i~ A~ure1l pol'l ilive inaula· tion. Sbp&. wL. 3 oz.

Col ~r '~' Pkg. o f 12 R ed "1-170 "1- 171 Black "1- 175 "1- 178

NET-~ '"Sf:Oil , r~l" 1@ I® @ ® ,© ~ FIG. A. Standa rd cont ti p; fits

~u_12rO~~ i~~ For .. S 10 17 "1-201.12 Far .. . .. .... 16e FIG. A. Similar to above but bt'a\"y duty for UH' on tnt lr ad,..

~_~11t~ 1::t;~ r . . .. 86c .. 1-2.10. EACH .... . .. . .. 8e FIG . B. Hole in slerYe providrtl means of sotderio" to wire in!lt"'n .

~o~-t.~~·... ... $ 1 .4 S "1-221.12 For . . ... . .. 1ge FI C. C. "Imp" mida:ct 1~· 9OJ-

~e~l~ ~1~;1n Fo~~~~~· . 6 Sc "1-230. EACH . . . .. . . . 6e FIC . D. Standard si%e 1%· 1101-

~~'~ .. sc17"12n·~~~~eclor: 6 5 c .. 1 - 2"0. EACH . .... . . . 6e FIG. E. INSULATED TYPE.

~\~A~_'Pk8'~ Red "1 - 250 "1- 251 Black "1-255 "1_256

-"fT - To.:- - $1.08-

46 WE ARE HEADQUARTERS FOR ALL REPLACEMENT PARTS

CLIPS • FUSES • ACCESSORIES TYPE SAG FUSES

J>-iKUed. eapPd,ally to -protrct tt"ll t ,instruments and Rlfters . GI~ eodolWd umu. I zlA'. Hia:h14~ ac-

~~D ACt~r~~ ~~et~a\5:o~.o~t~ Hiah~t Quality. Laboratory tested.

u •• to Protect

R a t- Max . ::::~. ~:~!;. t ';'lIla~r. i ng Load 6 Stoelc NET

Amp • . M . A. ~~~. No. E A, ~ MA~! . Tr!::~.

__ __ _ __ ~:~t T;:~c. ~0r"p~l: 1/ 200 5 500 5 2·200 1 Be O \."U 1000 Galv. 0-5

l~l/~ ~~ ~18 :~:~g~ --!-5~.1~ Up tOo~iA -8:}~ 1/ 16 60 5 . 0 5 2-203 12c 100- 500 0·25 0-60

! ~: !: ! : ~ : :::~: -- ;. i~ioo " ~~~ -t!~~ 1/ 4 200 6 . 2 52-206 10-20 0-150 0-200 3/ 8 300 3 . 0 · 52-207 9c 5-10 0-250 0-300 1 /2 400 2 . 5 !l2-20B 3-5 0-350 0 ..... 00 J / 4 600 . 40 52-2091' 0 -500 0-600

- I -~ ----:U' 52-2iO ~. --o:rso --o:iOOO :2 2000 .4 52-21.1. 0-1500 0-2000

TYPE 3AG FUSES FOR RADIO & AMPLIFIER For usela 105.120Yolt primary lint". UDdt"no.Titers" Appr o ved. 1 '.4:1%', ~~ ~ ~ A mp • . Voln -..!!.!.:.....- EACH

IA 500 52-Z10! 2 250 u-n,? 5 y. SOO 52-211 9 J 250 52-217 c ~ ~~ ~t~~~ c ; ~~ :~:~~;

1 250 52-2U 5 6 250 52-2" 6c I Ya 250 52 .. 235 c 8 250 52-2U 9C

FUSE MOUNTINGS

41& Fortububr lastrumrp,

__ - - and meter typr luaell,

52-2.5. For8AG1· typrfu_, U_ w hrrr connections are abovr

t~H ,~~ ,~~~~I: , , , .. " " .' 9c 52-286. Pkg. 0' U .. .... 98e 40- 450. As above ~t for

~'l~~ .Y4 .•. type .. f~~~ .. :.. 9c 40-452. Pkg. 0' 12 ....•. 9Se 52-290. For SAG fu..- . For

~~CwH . ~~rl .. ~~~~iO.ru<· 12c 52-295. M r t r r -baclc. t~, For

~AE<t~~~~·. 1.· ~ 1 ~~ _ .(14. '12e

HINGED. COVER TYPE Undrrw1'it""lI' ' Appr. SjnRlr and doublr pair mOllDt. BakeUtf! baM'. 2Ya :I: 1!4- . For coin machln~.

.mt..'!1ici. rF:~~lf~;;.~· 1 8e 41.-731.. FOl'" 2 fu8CIJ .. .• . • 36e

BUSS FUSE HOLDERS

=~~t~~ ~I ~~~i!j:~~'k~~b t1I!:l~ fa1M'". N o toot. D~ed. Undenllrriters' Lab. inspected. r ~i~~·2.~f~u:~. 'FoY';A'G': .. rue:: .C1 .. 72] . HKM. F or JAG 1~-

~UACit . .. . ..... ..... . ... 29, oCl-722. HeM. Take-s .3AGor .f AG luMPS. Mount~ in Y.- hole .. .. 4 4c

SFE AUTD FUSES New appro,·("() auto and radio fUll-

d"rr"rc~ada~ ~ldr~tJ!~~ tBift:~t IrPKth 0( ruae for t"ac~ ratinll prrveau i.ncorrect replacemeot.s.

EACH 12 For ~Amp··~T

52- 250 ;--f - -4 - 52-251 j--~~:~~~ 3c ~ ~~:~:~ 33c 52-2iS 14 52-266 52-270 20 52-2n 52-275 4c JO 52-276 43c

LITTELFUSE EXTRACTOR POSTS

An all balrr.:eUte panel or cba!llli8 mount fulM." holder for tubular type instrumrnt or mrtft' fUI:fe>I . ReCL~ extractor kDOb easily rrmoved by acfewdriver or coln. Ba!.:rlite molded construction. No me\...1 pans expo&C(J. Mounts in Y.· holr in pand!l up to -",.lhic!.: . Undrrwritrrs Laboratory

~~~v!~n~~~:.o:~tt.~r:!: 4 1. -720. For JAG 1,4 _ 11,4-!ltandOltd type fuses. 41.-721.. For 8AG 'A:I: 1- mrt('"r

~r,.f'iAC H ............. 24,

nPE 3AG Tubular fu~s. Compactly made. Size il1 1% iD . x 1,4 in. Prot.Kt radio 8t"ts. te!lt InIItrumen~. etc.

¥he~~d~dLfUsc of the iAdustrY.

No . Amp . No. Amp . 52- 1.50 I 52·:155 S 52-1.5:1 I1h 52-1.56 10 52 .. 1.52 2 52-:157 15 52 .. 1.53 J 52-:158 20 52- 1.54 " 52 .. 1.59 25

~[~ ~n. 1 6, ~iyf .5 10,

®

STEEL MESH TEETH TEST CLIPS FIG. A

BAnERY CLIPS FIG. B

24AI 25 21 A 50 IIA 100

SOLID COPPER TEST CLIPS FIG. B 24 50-21 100-II 2000 I I .1000 1 2~' 1 1' I 17Ib·1 45.02SI'5CI4!1.02i1IS1 37 4'14- 1 }~! I JJ lb. 45-035 38e 45-038 3:43

6· tr .. · .18 lb. 45-045 7Sc 45-046 6.86 7% - 2 5 2 lb. 45-0501.35 45-05112.25

CROCODILE CLIPS FIG. C as 1 2 .... • I FitbananapluK~. 145-060 1 5c: 145-061 1 44c

ALLIGATOR CLIPS FIG. D

60S 12' 1 F it banana P 'U it8' 145 -085 I SC 1 45-066[ 60HS 2iA· IWI'd blat" handle . 45-075 C 45-07& 60HS 2~· las'd red handle , 4 5-070 Ie 45-071

60CS 2- Solid copper. 45 -080 C 45-081

NON·FERROUS R.F. TEST CLIP FIG. E 88 I t ' Ml· ' Idw for coil" 145-055 1 C 4~-058

INSULATORS FOR MUELLER CLIPS. FIG. F

39c S3C U~

SSe

~bf!P~:i!. '!:~Yh\:~~~~ltY~PI~~~iCl t~~~ 'o:I':,~t:: r~~:~~~~p~~ca~:!i ball hiKb dirlectric cou..tant; oil and water resistant.

INDUSTRIAL TYPE ECONOMY RENEWABLE FUSES Ferrulr-type fusr!! with renrwablr linb. For laboratory and indu!'trial

~~Ptti~cC::;~~ ~~~=i~i:te;!o:r 1°~o2S&i amper~ 8afr currrnt-carryin.li: capacity. Underwriten Laboratory in~pect -

~;f"~c:'nr~d?:i~~ ~~~r ~~Yt:: ~~ti~. '~~~~)' n~~ lr:~.I)~;n~n~= end -,!,iece in placce again . Thus a blowD fu!Jl'~ can br restored to operation withlnaf~w minutNtimr.·See listinKof most commonly uge'd drop-out links below. Slu. 2· lona. 14- dia . Avrraae shippiq weigbt. J oz.

"DROP·OUT" RENEWAL LINKS

52.1201 l I 52-121 6 52-122 10 52-lZ] 15 1

52.1241 20 I 2c 152•128

, 40 I 2 52-125 25 " 2c 52-129 45 4 c ~tg; ~ ~~ ~~:~~~ ~ c

ALLIED RADIO CORPORATION, 833 W. IACKSON BLVD., CHICAGO, ILL. 47

RADIO HARDWARE VALUES

Stoc k No . 44-001 44-006 44-011 ""'-016 44-021

SI:u

~; ~: I at"

~ ~:l~:

12 Fo t' 9c

14c 19c 25c 32c

WITH TAPPED HOLES

EYELET TYPE

1io" 14U21 I U' I U122 I ••• • ~~ .U2i lie 44121 SSe

1 he" Ulll lOc U U2 S'c .%" dla. t1 u,."' db..

ESCUTCHEON SCREWS

~ Metal .. ·ood JOCTtwI4 IA"lof\2. For ~·utrhl"on.. namC'"pial,"", indkatn, .. rtC" 44- 141 . Crou ..•. 29c

RUBBER BUMPER FEET

6 Standard 6-..12 ... rrw. Provide "tratly. :4Olid footJn& ror table cahineU. de.

44_15 r:o,.~~o~Uli~: 26c 44- 152. Gr ... . . ,' . . S 2.25

INSULATED GROMMETS

Pr~ v cnt wit., fr om frayin~ or brcakinll . Kaurh:d mauDlin. aut.

Stoc k 'Itl I ",Id. Pel' N o . Ho le 0 1. . Loth . Doz .

:::~:~ jt: ~: tt: SO: ~ ~ :::m ~: ~: ~: U8

RUBBER GROMMETS For iuulatinR hol~ in ""'"tal up to """ thicL:. Black rubber.

S toc k nt, Inl l d _ No . Hole DI. m ,

:::~:~ K:: ;t: 44- 191. Va' %"

P .. Doz.

9 c 21 C 22c

RADIO HARDWARE IN JARS

~f~~~9 ® CIa. ;aJ"l' wilh Krr"-' OD cape offer a D("3I. C'Onve'"' oi ... nt ........ y or ItOl'lna your radio hardwarr. JM comt'al IUIed .... ·jt h ;1oy liDalt!' M'l~iOD o( hal.tware brio ..... . Blo' your hard ..... arp tbis way ao<.J ke'ep your

vc;~~n~~i~t'~I~'Y'JAS:P&. wt., per Jar 80z, CO,.,.rLt:Tl. WITH HARDWARE . ...... 35e 46· 500. Clan Jar Onl' ••...•...••... .... 6c

R.H . MACHINE SCREWS IAI RACK SCREWS-WASHERSIC I StOCk N o . Qua ntlt)' Slxe 44-52.0 100 "'36.~ " 44·511 75 ... 36x ... 44·512 90 6-32.~" 44-52.3 80 6-12. I..l" 44-514 70 6-32& . " 44-515 50 6-J2:d· 44-516 65 g.. .1 2:a~. " 44-517 J5 10-Jlzt-

NICKELED HEX NUTS IBI

64· 545. 20 ~h 10-32.'.1" oval ht:ad .crew. with cup wa.!Ibcr .. SELF-TAPPING SCREWS 101

Stoc k N o . Q ua n tit)' Size 44· 550 50 No. 6.1:1;4 "

:::::~ ~~ ~~: ~:~: SHAKE PROOF WASHERS lEi 44-5 6 0 100 6-12 44· 561 90 8·32 44·562 80 10-31

46-530 44 - 531 44- 532 44- 533 44 - 536

t~ t~~!~ ; ~':~~~.:; F i bl~ Wa$ h~~~/.~~. : tn:~; 44 · 5&1. 90 XrtM.J:~. 50 1I)·J2.Y." :::;:~ I~ ~: ~;jt:

RADIO HARDWARE IN ENVELOPES NO T IE : II ardware above i:l avu.ilable III alnall quantities in C'Dvclopcs.

~~':D 4~fO'~"o~I~tb!:~~·eC~$.sfo.prf!E&:.lrtm~Jno:: .~. ~~ . . ge HANDY HARDWARE ASSORTMENTS

ALL· PURPOSE ASSORTMENT An In,IIJ11lK"n~ble itf:m for the f/ft'rv-

~~~~srr~~~~:tl~~~M:!~~ tainillal: ...-,rtrd lII~hilie ""·r .. ,,,'tI. nuta. "paclr bolta. tK"1f· tappina ~. rubber ICrommf:(..... ~nob .... t " ' 1'",,.'11. rj\'l:t" ami ~t'kt." hut •.

44~O~iTII~ 52 .56 FIBER WASHERS

A larar v:uiMY of .houh1rred :utilI pia," tibt'r w .... b"rr" U*!ful to~r)' Raa-lio E.pl'riml'nt~r and Sf:rviCeman. AJII*lnmeont of I 00 \~·:utl"",,

:-~ !3~·O.~~~ \I:o ~~~' .32c

1000 PiECE ASSORTMENT r\ hataain 3J11..000ntDf:'l1t of r3,Iio hard wane. CODtaln_ riVf: .... pvm. Rle1 •• nota. IiC'ftW!&. w3'1het!l. lK.ack .

~~::~~rUII~~~d:~;t' for ~~ ~C;:f~ ~~t!~Udill&. and

S all 01 hI"

.... - 3.5. NET .... 1.35

SOLDERING LUGS OualitY aolduinli!: lug". All tY~

«~;~I~~~ ~:.ti ll~ :DK~!,: " ... · .. Jl takt"1i I"."' IUzr .. orf:w . Rt"!I( take 6-32 and 8-32 .t&e lR' te"",',

44~:O1. ' F!II '144~;2 1 I '~II. 44-406 / 2 44-426 1 •

:: ::~~ : ~.~~~,~~ ~ .. P er ••• 0 ' 1 09. N IET . .. .25. JUMBO SHAKEPROOF SOLDER LUGS

Cadmium-Plated 1101·

derill& 11I"""",·ithV.'"holf:. I de-al for auto aeri,d

;:~~~·;a~·2 .. 8c 66 - 942.PcrGroM. 85c

~ 1) Miscellaneous Hardware .... ~~ . W1na nuu and (,Ilp nuts aJ'f: briaht fini:lh.

For drewlh" up appearaUCf: of all apparatus. Loc-k wa .. dJ"'t" are "prillK metal.

SHAKEPROOF HARDWARE o

Stllnfy IUIo:!I am' wa><hc."N that loe'k in ~ition. Cannot come loo:IC. Lug No. W~.h.r 44 - 92 1 For6-J2~·44 ·9 31 44-9 2 6 For8-32Scrf:w44- 9 36

r~~S.G::~ASHIERS. .. 2ge

"PARKERIZED" STEEL MACHINE SCREWS

Standard ih rC"'art . • · Parkerift'd·· rwt-J)loof Ittur-dy IIterl IC'fC",,",".

6·32 ROUND HEAD

44· 701 !4'" 22c .4 .. 706 ~- 20c

N.. Lano t h G' ••• J :::~~~ ~: ~~~ :::~~~ :~ '" ~!~ .6· 73. I ~ '" 45c 44 .. 736 2· 57C

8·32 ROUND HEAD 44 .. 7 5 1. ~.. 2 8 c .. .. - 756 If J 2c :::~:! I ~: ~. 6~~

METAL TAPPING I SCREWS

~~t.:.!t te::: !::~rllc!i In . 1"01' :.all .t-.., mf!W up to No. 16 .au.f:.

SIZE 6 SIZE 8 · No. Gro • • Lg t h . No . ero • • u -a •• 2 9 c I '/0 " I . ... . U-a • • 30c I 'A" 144 -12. 33c u -u. 31c ~17. " 44 -11' 3 5 c ..... aU 32c .1. .. 44 -115 3 7e .... 2:1 33c . " " -141 39c

PHILLIPS MACHINE SCREWS

rlulilPl' rouDd lIf!ad type, i. cr~·"lol.; " Parkerized' rUlIl-prool .t~l; in stan-da,d .t&cL Av, wt .• 6 oz.

6- )2 ROU N D HEAD No . Len gt h Gro ••

::::~1 ~: :l~ 44- 8&1 ~.. 46c 44 .. S..." SOC

1 .. 32 ROUND HaD 44 .. 871 tN" 4 3 C

::::~~ 11" ~ ~g

HEXAGONAL NUTS

~:::h~:~ ~~. D:!ii plated; ruat.proof.

Per G rou 44-91.2 44-91.7

PUSH-CLIrS Fot 8il!'C'Urf:ly ra!ltrninit' <'Otd" hom tadlOll, wall or noor lamp~. to mold · i .. " .... or 1J3""OO .. ,,1. Ea"y to In!lt all. No tool!'! nc."l-ded . Wt. , 3 oz . 52 .. 020. B t o wn .

~:rdOo~ ~. c',i:~!· 8 e

26.

1 0 Cardt. Fot . . . 7 2 e

48 FOR COM P LET E I N D E X 5 E EPA G E 9 6

ALIGNING AND NEUTRALIZING TOOLS _"'_-,--~ ICA NEUTRALIZING

& ALIGNING KITS

--- DELUXE MODEL . -< AliKUI' aJmOtlt all rrt..~iftra. 14 --=.. ~i:::. Cth~ :~I:!pJ;l~'!~ _ _ ~~~~:I~~~~ ~h~~: ~:g:

er~llc' caae indudinK: lk"TrWdriv.:r with flt-'1il.Jl ... shail for hard · to-r.,·a.,.·11 8I1Gt,,; " llla&ic" aJiJ{nn~DI tool .lJl i...:ator ~ude ... reach; 6'" ,l flvc-f with y. " nut

STANDARD MODEL KIT 14 tool!! tt'"I~OIJt' Into ~h olh"" to forlll oaly

~~-::~:. :.!:tl~~ r;''',h!: a~'~r6~'~~~w~~v~1~ a lUeator .'Yt'"och and varioua nt'"ulraJizina tool !I .

~2':1W2.k~IElr.:.~ ~.z: -' .. ... -' .. $3.82

"2.170. Non - M.t.lllc Scr.wdrh. r . For aU,niDf lrimlllet' condo in r.t. circui t " ,

l::::.("4°0z~4N r·{ilJ~I~"~ . ha~~I.i:' .~ (J~ •• 47 e 42 · 171. Double- Edg.dScr.wdrly.r . !d ade

~~ t:~bb~d~" 7t'i~~~~l ~~ Nh~~~ .. ..• 2 g e

F - -.. 2.145. AlIgn,".nl Tool. H Cl.II .,-.iatly d .... ianf'd meta l clip for neutralizi nK au t rimmer COndf!'n!llr"rII on all model IK"h. includiliK

~~ ~~~b ,<:' ~J~~·Nfi:T~. ~~'. ~i~: .i~ 3 8e

• Insul.ted He. Wrench. lin: brOarhinl{ rum entirr lenKth of wrrnc h . End maY be CUt off ..... lleD worn . Flbn- rod. rit!'l 1,, - nut. j oz .

n.~":.~: .... 17c I :~;'~":.~ : .... 20c

5-IN-l ::~~==: ALIGNMENT _ a u TOOL

A handy .. lilmlD("Qt tool kit tha t wUl _rv~ inDUID~rablt'" U,,", Consi",t, of ~. and .,," nut wITDch~. miniature blade and full-NZt'" .. 'e' .... ·

!ri2v:;.2~~ lU~~t. ~~iPl'. ~~'. w.t: .. ~ .oz:8 8e

42-135. AlIg nm.nt Wrench. Handy ali gn· Ina: tool for arlju"tinK air trimmers and coil OOI'ft. 1A" dia Pla.!ltic rod, 8 t/z " 101lK. Ila", hpllaa:on wrM1ch at one "nd and .halX'd hook ~[oi~~' For RCA and Phik'o. 5 oz. 88e

42 ... 140. Lew C.paclty Allgn.r . Marle or tOUKh bonr fi bn-.. ,." d ia . One ~d haM .. re ..... • drivel' for adju!f(.ina: trimml!'T!ll ancl paddim: c:undell.-n; tht! othrr ("11,1 hOI" a re'Cel'lM'd .·rrw· dri\'er for adlu.U n l: pt-rmPabilil)' l unt'I.J ('ir-

=:!~ .s1a~~ :tO~ SaI~;.'II~\:.f~~~:~~t.t~1l .4 3c

HE-O-LITE NEON TATTELITE

Pock !!t D("()D trstft" . I nttl<'"atea "oIta.ll:~ from 90 vollJl DC and 60 volts AC to SUO v olts AC or DC. Tl"1lt>e fo r IIvf!' li hl"',c. Kround ed Hnrtt. olW"n C'in-uits. shorts. pl?lar ity and \"hf!'tht."t"

t<;~ti~.:r~~i:;w;:1~~~ tenitr body. cokJr-codrd IPad!!. Locates ,hort" and voltac:c ';:dlures. Illl'IUlatn! t~t I('adl!

Wlt\;.e:!.on ~'!,~ltl~lnd~l~k: ';~I~~:5~1~~~ion!l .. s ge

TRO U BlE 1i1il.[tiIil •• ~ LIGHT ~

Provid_liKht wh('"r.· you want it . Fountain . po.·n tUu . For 110 \'01"" Ae or DC. With bulb. a nd

~'1~iio:r~[~~: : .1. ~b... .98c

"MAKE·UR·OWN" TEST LEAD ACCESSORIES Th~ rol lo\\;njl poPlllar a,,"~rtm~t of h i Rh~luality te.t.prod B~ri_ hav~ tx-en !lPlected fo r

~~o:.;;;~lCl~~a.7nd~.l-hth~~.~:t:J~r ;~d~::"":f~Ii;\:~;;;I~::~t.~b~":~«!:!:bI~W-

AMPHENOL CO-AXIAL CABLE TEST PROD WIRE

Trantmits RF and AF C'U~tll w ith mininl\lIn 10-'. E.uft'm~ly flc.ible. ~ndll on I ' radluli.

~~ a::~a~~!'f~~~l~.~~.~ ~~~~~~: ~~i~d~ 1('0;1. I.:w:qurred cotton braid C'O\·nim: . OiamrtC"r

~9~~·o'i~ · ~~rr.;:;::~.ftT.alor:.. etc. 29c "9-301. 5 FOOl Lcna;Lb. 0 OJ: . NET.S1.32

SOLDERLESS TEST PRODS Nf'l'dlf' point (1I"!It prod with in~ulatr-d pla"ti~ handl~ thr .. ad«l 10 tal.:r th~ IIOldl'rlt·a plua: ~I!f- Ij: :~: ~a.r;r ; 111· dia. Shippilll: wI.. 8 oz. 42 - 111. BI •••• EACH .... ... .. . . . 29c

CORD TIPS FOR TEST PRODS In"ulatrd·slerve typt". standard t,.'Ord·tip . I· i ts any Ktandard phan ... · tip jack.. Sere-WoOD CODnrctor mak~ good contact.. "1 - 250. Red . EACH . ... 10c 41-251. kt'd . 12 FOR . . .Sl.08 "1-255. Blark. EACH . . 10c "1- 258 . B lack . 12 FOR ........ .. S1.08

ICA TEST LEADS

HEAVY DUTY LAB ern MODEL PRODS , ~

Heavy duty tINt. prod. with rt"moY abl r pbon o-nrrdlr eIluck t ype prods for pe'ollet.ratine wi re lead inllulatWruI; ltblulated phone tip te-nunahl; 6· phenolint" han· fa dl~ (one eac h n-d and t.lack); and 50"' rubber coy-t"red kiDkll""8 1cw..l1I. lIan-dl~ knurl~ and shapc-d for posi t i ve 6 n gff ~ir;,Pie~:;'in~~!~ ~V~·. C1Iif.;.or DOn-lnllulaU!d phone

42-200. l e A .ro. ~ER PAIR . . . .. . 97c 42-201. ICA 391. Spade TermInals • . • S2c 42 - 202 . IC A 388. A lli gator Term~ .. • . SSC 42 - 255 . leA 392. Non-IMulated Phon" Tip Terminals. PE R PAl R ... .. . . 82c

5.000 VOLT PRODS Similar to heay)' duty lab model

g~~!1 4c!e$.i~,~nl' a~:;dle=llC:I~J non·remo\·ablf!' chucl.: . IDtIoulatn! for u~ 00 circuih t,.·arrying up to 5.000 volu. $hpa: . WI .. 10 oz. 42 - 210_ ICA 382. P hone TiDf!.

~~d~~·fv:..I~:':8~A I R • .. 59c 42-212. IC A 379. A lliea tor Tcrmi.a.ah. "AIR . . ..

WESTON TYPE PROI;)S lligh-cradr \\~nton tYlM" It'ad" fo r all h.· .. t il"'ljUiplllrnl . -" . han,UI1 of inllulating ma t.:ri .. l. ,,' jtb fle.-;ihlr rublJcr w ire . Sharp. lJOlnted tip i. thro.·atl.>d and ~R'WS into handl~ . M o lrlt.'<i Rn f)!l w ilh phone tip!I h .u'e _rot !'C"rev.;s for rallY ,.mo\·al of w ir,· . I .~nllh of IPads and handlr!l I!I oS·. Pro~"IY ~Idened eonnf"f:'tiona andRoodquallt)·.ShplI: . \\"l .• 1!;0z..

i"c~~~ONET .. . .. S 1.03

. . . 6Se

ALLIED RADIO CORPORATION, 833 W_ JACKSON BLVD_, CHICAGO, ILL. 49

o/~ m POPULAR TOOLS ALL.PURPOSE CIRCLE CUTTERS

~ i>C'!IiKnei to cut later holt"1t

~~~t~:Ir.:~. (h~r~~

I ~SCELLANEOUS TOOLS AN,D PUNCHES

@f J J @f\ J •... ~II!!!~ her, tin, sheet metal. etc.

. ~ilr p~~:~:di~~'h~ bta~. Type C t. d~ie.Ded fOT h~vy-duty wor!.:; Type A. i~ a nandar.1 prof~ion3.1 ('uttP!", he1lvy hat CODslJ"UCtion; Junior type hi for light ..... ork on ~fta materials. All cutter blades remo .... abk. Available only on priority. 45-600. T~p. A. Ptofe. ~IiODal model . Hleb quality

~:~~~~f.1!iak~::. C!.~.h~~~ Si~&~O w~~. 121ta~~f1¥. ~~ .. s 1 .35 45.601.. J unior . Not Illuatrat ed (,.Imllat to FI" . A). C uta holes 5,4" 't o

:~~:. 1!:~:.t~i.~II~.bleNftr,. ~l~h.t . ~~~~ . ~~~t.'~~ . I.~ .~~~e.l~ .~~ . 8 5 C 45.602. T ype C. Squ. r e Sh.nk. Heavy.J!uty cutter of harrt"'~ :~ ~::el~~I~~:. '!~.~rl~~_ d~aET~. i.~ .~.k.~i.t~ . ~~ .. ... S 1.98 .... 603. T~ p. C. Round Shank. Same a!J T ype C above. ~ut witb

~~Ut~d 5 ~~~~h~~.~.~D2 ~~;~·erN ~~I.I. ~~~~' . ~~.~ .~~~.f~~~ . • , .98 45-804. Typ. B. ~' t o 8' Circle Cutter. AlJ-purpolte cutter of b ll t.-

rak~~I~~~~~~p~~t .. Fltl!lbs~r N'iT~~ . ~~.U.C.k: . ~~~ .. ~~~I.' . • 3.53 45-6 1 0. C uU. r BI . d ••. EltU"a blade fo r Type A Dnd.. C cutten

~t:~. '!:.~~.\"'o~~a~eEc;! . ~~t . toOI .~I: .~~~~ .f~~ .I~.D~. ~.~ : .32e

45-630. F IG. A . REAMER . T empered carbon ·~ t<-.. I reamer . Drop-(or.:e hardened shank hu ·· r '-t )·pe handle for easy grip. For enJargina holea in wood, bakelite. or met.<t.l. OveralllrnRth. Sy.': t a per. j~.' . Small end Qlame1.CT. V.' ; large end diameter. V,'. Shpg.

;;U. ~b· ..... ... ...... ... 85. 46- 1.50. FIG. B. TApERED RE A M E R . Large tapered reamer for u~ wit h hand bra~. Made of

~~':~~~~d"~:!IO~~~. :~r r.Uy reaming. Overall lenith, S7/ria:aper. 4'. Small end dia ..

~Eit . . ~.e.~~~ d~~ .. '11~'. ~ ~~'. 71 e 46-1.51.. FIG. C. COUNTER-51 N K . Rose paUern for u.e \\'i t h han1.l bra~ on wood or 80ft metal. Yz ' siu. Durable millN.! t~th .

!;1;'~~n..:. Slipl. wt .• 1 Ib· .2 8e

46-1.52. FIG. D. DIVIDERS. Madr In U.S.A. Sturdy sprinl<:action dividers . Constructed of esoellent tool 5tet'I, correctly hardrned and tempered. Pred"on cround. Lenl(th. 6' ; m ammu m

~~1' Ig~'NEi~~~· ... ... 96e FIG. E. CHASSIS PU NCHES. Cuts round hole ia ctla.as by turrun\ <"ap ~r~w. Shr. ' wt .• 1 lb.

:::~7~: ~-: ~~T : :. : S~:l'15 46-1.7.2. I' . NET . ... i' :: : ~~:: :~: ~~~ '. ':: : 46-1.75. 1 ~'. NET. ... • 46-J.76. P,1;' . NET.. .. •

43-900. FIG. F. KRAEUTER HAMMER. D rives nails. tacb .

~~~.a~iJo~ul!:~I~~y,w;ek!:~~shl~ ~E~~(~i~ht, 2 .1~ : . .... . . 65c

STEEL RULES-SLIDE RULES-MICROMETERS-WIRE GAUGES G.C. CABINET REPAIR KIT

~'~~~~~:ii~i~;;\~~~i= il and 64t h~. a l"o B. & S. "'''~ . w ire ..:aull:~ . U;K"k h..- 1.Iecl II

111011 ~uival~nt8. For N o!!. : .

~~.2~~¥~:.\~·.i~ .. 25e @ ,' . © 46-050. B . Ml c rorn e t.r. Predaion-bullt: ace-urate to 1/ 1000 of an inch. Hardened !lt~1.

~~z~t~~~ ~n;~\.i1.N~~~~~ . .- .. S 1.05 46-051. Yl' size. NET . .............. S3c 46-060. C. Drill and Wire Caul •• A haadY. 3C"C"urate Kauae of poll~hrc:l, tempered IItrel. Ilu indeK on the {ace for machine M"rpw tap"'.

~uz~~r~;:. ~TT~~~ .~~I.v.a.I~~~~ . ~~~ . 9 5e MULTI-PURPOSE STEEL RULE

~ ~dIl3:'::~Dta~~U~~~:::~: • . bt-vel protractor. c:-ratrr

. finder. circle dividl"r . 1 lb.

~:T153. .98.

MASTER STEEL ~ TAPE RULE ~

4 6 · 0 46. HhI:h'Quality six- _ foot t e mperlPd flteel rule . Rtcht"d fi_urn! . BlaL'k, enamel fini"h 7 5 "t .. 1 t'1l~. lib. NET . . .. . . c

COMBINATION STEEL RULE 4&-1.54. \2' r t ch r d · lltrr l combinatloQ MJuare . Graduated on both Mid", in J2nd". 16th~. and 8th!'. lIt'ad has thumb-screw for

~+i.~~ .I~~~~~ ....... • . •. 8 3e DIETZGEN SLIDE RULE

PHILLIPS OFFSET SCREWDRIVER Com hi nation offflet lICTewdriver {or PhillipsfNo. t and No. 2 sizt" wood or machine lKTe ..... s. 4V.'

I;~~_ :V;r:'I:~~~. ~~~I : ~.h.~~ .. \~.: .8 ~'. 3 ge

HANDY TOOLS FOR THE RADIO SERVICEMAN

©

::~I~~: :n~sd~:~?~h~ ~;e~~:: ~~;:~nrn; and w:Ultr. TranJi parf'Dt {ountain-pt"n rewr,'oir

~O~d_~,!,;~:~;: .~I.I~~: .~~ . .' .~~: .'" .47 c

~I'·IV:R . ~~E':~r~~:mJi~:ro~ lh~~RI~~: to-reach ~pots. F lwblr Jlhaft aad movablp inMulated guide do the lrie l.: \Vlth little or no

::~~1~)~.8~;~~~~.~~~~1~ .. ~ . I~ .... S 1.32 Fig. C . SCREW HOLDING CLIP. Easily ~lipprd over blade of I!K""n~·wdrivrr. Comt'll In three !l.ize~ to fit aDy !W:rt'wdriver and any 8ize

:~~~ ;~E ':: :t~hi:; ~r~"~T~ .~z: . 10e Fig. L. ELECTRIC RADIO TWEEZER. Finely tf"mpered !lpring twrn:er. For delicate

~~~O:~I~sN~es[:~: •. ~~~~'~', ~~~' .. . 2 5c

C :!©

fi ® ®

FI,. D. HANDY SCRATCH REMOVER. Sue l.: build~ t'C rau' h to original I~· .. I a nd pol-

i~~~~~~I~~ ~~~H\~ ·.' .~ .~ .... . , 22e Fig. E. END-WRENCH SET. A handy endWTrnch !W'"t of many u~. Cadmium plated. \\lrenchf'" an'" V. --~'; Y.- -y.' and V,- "-fth

~I~~a~-;oj.a~~t ~~P: 'W::'~clh ~~'- NET . . 12c Fig. F. WALCO SCRATCH REMOVER. I nstantly removes unsight Iy .-ratchMil on radlO!l o r furnh u~. Merely brush o Ver liJl,h tly. Rrverse end of pen-shaped container ha~ a "pedal filler for IIotaininK . Unbreakable. Ship-

:~I.\\;i:~tN:TO: · . .. . . , .... ........ . 2ge FI,. G. KNOB PULLER. Ea.·dl y removes all type-!! pu~h~n knob1'l. Prevent . marring of

~a:~~;r7:a:::;t.-.. ~~~~ : . \~ ':. ~ . o~ : ... 15c

Fig . H. Wlr. Stripper. H3l' tempprf'cI ",rei

~~t~~"a;S.FN~~~· .. \~~·: .~ oz. . .... 12e Fig. I. S·IN·l WIRE STRI~PER • .-ra Pf"r.

:I~t~~;~d.:~;~ .~~\~d.r.i ~~ .. 6 oz . 1 5e Fig. J. KEYHOLE HACKSAW. CutR m .. lal. wooo:l, plaAlt'f" , conduit , etc. 7%'. !lWt-toOlh

~~~~:~~gFr~·. ~~~. Bl.d •. NET . . 2ge 46-086 . Extr. BI.duo EACH ... . 12c 46-087. PaCk.g. 0' ,Ill bl.d .. .. . . . .' eSC Fig . K. ~ISTOL·GRI~ HACKSAW. AdiulItable {or 8 ' to 12' blade. Saw i. four fl iR'C-

~06~~~~~hN8;Tb.I~.~~ . . ~ .I~~ .... ,., ... .. 51 e

46·091.. QUALITY HACKSAW BLAOES. 8' long, ~ wide . Set contain.ot one fine and one

~;;.~ ~~~d:i ~~: .~~': .~ ~~: ......... 10e so LOWEST PRICES-HIGHEST QUALITY-BEST SERVICE

~ ~ TOOLS FOR EVERY PURPOSE KRAEUTER "K" BRAND QUALITY TOOLS

~ ~ I®

WALSCO STAPLE DRIVER AND ACCESSORIES Automatically ataplM wir~ in COtD~"', behind pi~. into moldings. etc. \\'orks also in hard !lurla~. such as plaster. mortar and 110ft concrete.

Staple depth can be ft'Clllated to avoid dama&1ng wire insulation. Hold!! 23 IItapl~; for wire up to 1A" in diameter .

~a:I~f I~:!~~. T{l~~I-ol:ta~~C':~~~:PI~~h~:!~~Po!l~~~~~ . reftiaetatlon lIaskrt work. etc. JDdislWD~ble for Radio or

:~_~;':;:i:~ ~~eL NET . •.• •. .. .•.. . ...•• . .•. $3.33 43-721. De-luse Chromlum-Fia..h,hed Mlxlel. NET ......... . . $4.18 43-72.2 . SteeJ S taplell f01' aboYT. Covered i nside \dth inllulatina

'8~~'~ ·6~.C;~t:I:: ft~ ~V+~. ~~ ,1,0 ~~r.i~ .~f. ~ . ~t~pl~ .~I: 29 c

43-723. 80x o. 1000 Stapl ... NET . .••.. . •. .••... .. . •. , . . 95c 43-726. Leather Carr.lng Cu. for Stapl.r. NET . ..... . $ 1.25

3" STEEL BAR.VISE Hra"'y-duty tool·"teel bar-vi~. Ha~ out~t~ndinlf fll:':.t.turll"'S such as locking-bolt with lI~vlI:'l-ha.ndle whic:;h I~k.'l vi_ in any ~ tion. TlI:'mJM""rrd pLPf"-JB .... 'lI will not di"tort pipe. Iiall die'--CUt ~mo\"ablr rorrucated paraJld-fadni('" With cut~ff tool. Jaw width:,Yiw0PPn 10 lYi ' ; piJX" c-apacity; ~'

~ .. ~~:i 3 .'1t'h~~ : · .. '.'.''':': .... $2.95 AC·DC ELECTRIC SPEED·DRILL

Thi!o ru&a:ed electric !!Ipeed-drill ill Iiaht a.nd t"asy to bandle. Sturdy chucl.; -a.t!lembly holds up to 1.1. ' drlll!l. Handle has tbumo-controlled !twitch. HI"b-!tprt"'d drills ca.n br ulK""d . 1500 R.r-.M. Drill!!l '/c" from COrDeTS. For 110 V. AC or DC. With 7 foot cord. Shpa:

:;.~~~':'NET ..... S8.2 5 RADIO TAP, DRILL AND DIE SET

l tap!! with drills for " / 36, 6/ 32. N'J2 thread". Th~ 1" dia.. di~ for cUllina: thread!!. Dir stock and adju"table tap '"Te'uch . Sturdy ..... 00<1 ca_ mll:'3Ilurt"S

~:-::r~.1 ~"El .I!~!I~ .. . ... S.l .95

ACRO CHASSIS CRADLE Permits I~lting any radio !let or amplifi("r ch~i!l i.D any position for circuit alignment.

':..~t..:or ~:c~~~~~;f =::. ::Wr:~ef~ ~!W~ school irutruction. ~Iechanical clamp holds cb<U!lis firm!).' in place. Adiustablr ba..ote takrs any sizr chas!lis up to 21' 10nK. Madr of cold· rolled ht"avy slei!'"1. Shp&_ ..... t .• 5 Ills. =:i030

. .. S3.50 86-032.. Extra •• t of c:~mp!; .

RADIO TOOL KIT Handy <U."'tOnmcDl of II U!M'"ful tools for 8f!"rvicrmeQ or for radio-school u .. _ COD!USt.s of: J" and 5%' Kn' ..... drivt"r~. RCribrr. rra.mrr. countrnin"-. Ihin lon" no!&fiJ pliers. crnter ~unch. !IOI-krt \\,TNlCh M'I from !A" to .. for hl'"Kagnn and knurled nuU. and heKalWn nut wr~DC"h_ from 1.4 ' 10 ~ ... All radio tools ar~ tl1o_ rno'!l frPCIulI:'Dtly u5nl. Ideal for all phasel'L of radio work.. Shpa:. wt . . "6-040. NET . . ..... . .. .. .. . . .. ............. .

HANDY ALL·PURPOSE· SCREWDRIVERS

43 - 800. Fig. A. RUl'Ltproof, tool-strel blade is accuratelY ground to fit !lCr~ sloL Slipproof, transparent ambt-r han-

c:JET~~ .. ~: .~I~:l.e: • .. .. .. . 32c 43-802..6' Blade ........ 43c 43-802. 8' Blade . ... , . . SSe

_~s3i~~:y .. ~I,_~:~:.;!r~i~1:1 ~~ boD Cl'"udble tool·llteel blade. ~' x I !A". Am\)('"r)'1 IIUrr--grip handle

I~tr:p,~, ........... 40. 43-82.5 . Fig. C . '-HOLD-EZEE. " New IkTII:' ..... drivrr ..... ith

~~a~k~~!!.~D ~~i~:.r J .. ortr~~~~ ;~rb~~\e~U~E¥.'.~ . . .. 4 2c :~:: ~;::: gl=::} EA . .. . S6e 4 3 -82.8. 1(Y ·blade. EA .. . : S ge

:lR~~5D ::~'E ~'. --l;!!:tL:O~P~;: ~I head 9C1'"l."W,,; DCCeMary for wn'idna: manY ne..... !M."ts. Has .t.a.ndard ..... ood handlr. 3" bladr.

~iT~~: .". ~.z.e. ~~~ ~~~I.~r: 30c 43-826. ,,' . No. S to No.9 slus. NET . ......... . . . . . 31 e 43 - 827.6". No. 10 to No. 16 sizes. NET .. .... . ....... 38c

® ® © I (8)

I ! IJ

~:o8N3~·Fr~l· DEE·Vlt~.NF~n! quality !lCrll:'wdrlver. Built-iD DeOn tubr in handle a:lows \\'hen electric-al contact is made. Tran!lr;:rcoot handlr, t%". Blade, 2Vz".

En~cIHt~ ~~~ .5~. ~~~!!~ .. 2 4c 43-836 . Handlr, J1.4'. Blade. J~'. 15.000V. 7' o"·erall .. . . S ge

43-860. Flg.F.INSULATED BLADE TY PE. 10,000 V. io",ulated !llC""nwdrivcN. R,ffi and black

~r;:::fI~~~ ~~(!~r·N~.f~~ 1 ge 43-86 2.. 6Yz' b lade. NET . 2Se

43-850 . Fig . G . Non-skid shock-proof, With ribbc-d POiDt. ~ulnr Ambtorljte handle; with

~~PF~"Rb~~;D. EACH . ... 20c ~03F~~~i.~ .. I~!l~«tH .... 19c ~o3ig~~i.~r'" E'ict~· .... 1 8e 43-870. FI,. H. Narrow bladr ~re ..... driv("r5. For IM."t-Krew kno\.l5

• and balanciD~ Uimml."f"!'o. Overall length, 4%'. Hardt'"ned 2~' blatl ....

tom.t:/ S~~~~rEAii~~I.i~ . . 1 2c 43-872. . 6'L . . 4' blade. I~ clip. 10 for Sl.15. EACH ........ 1 Se

STURDY HAND DRILL AUTOMATIC WIRE STRIPPER VACO SCREWDRIVER KIT

4~~ Sturdy. rXN-ptionallY wrll balanC'fil hand drill with 14' hardrDed chuck jaws wbich will takr up to 1.1. ' drills. Solid mrtal framr_ BlI:'autifully finished hardwood handlf! has" hollow top for

s~':'~Cf3eO~raN~~I~ ~ .. ~. ~t~~ .•••••.• • S 1 .1 5 ASSORnD DRILL SET

A n~' !4t'"n!l3tional drvclopment in ~ :~i;~e::.rif:(·u~~~e~~e·"'~i~~:: . \ hour). PQIl.iti\"r acting. \\"ork" on wir. rnd" or BnY place along ..... ire'. (j.

Uoe-B a clll:'an job \vithout dama~r to any kind of wirll:'. eithll:'r straDded or !lOUd. ShPa:. Wt .• 2 Ib!I. 46- 003. Mod. 1 711. Automatic .tripper for sizes 12 to 20 wire. 46-004. Mode' 7l1A. . .

~o::z~~~~ .2.". ~~i~~ ..... •. .... . $3.53 AIM availahle for ~IO and to-IS l.I.in'; anel for aviatioD wirt"lI. ,Vrite for pri«'!I.

FOR

PH;~~~S~ ~ SCREWS~ ~ Kit of fivr IICTewdri"'ers for Phillips ~. AmMryl !$hock and break-proo£ handles.

~~g ~~: ll; 1;4' ~~: ; ~:~ smaller

TYPt' I~I BI.de SI%.' _ FIt Sc ... w.-P30 HY ~ x 6" No. to to 16

~~ l~: ~·xx ll::'" ~~:: ~c:.: IImall~ ~1T~80. C~~~~~~. ~.i~ ....... . . $2.35


SOLDERING IRONS & ACCESSORIES LENK QUALITY BLOW TORCHES KESTER SOLDERS

~ @ @.mJ

SOCKET WRENCH SETS

SPlN.TYPE WRENCHES SodI::rl!l of hardeued. tool Ateel. Shaab of rulltproof ~t~1 with tib~ ",,'oodnt handle!!; . ShP&_ wt. !!'ach, 8 oz. Set of "'Z wr~chell. 3 Ibs. Nut S ize 16. StTaJaht 9" Str3oleht l 7. Off!let tw,. 4 5-700 45-720 45- 7 110

~: :::Jg~ :::~~~ :::J:~ l/ ' "' 45.703 45-723 45-753 H.· 45 - 700& 0&5-720& 45-754 ~. 0&5-705 0&5-725 45-755

r!CH ... . 22. r,UH .. ........ 25. ::: ~ ~g: ~~: ~ =:z: ......... S ':~3 45-760. Set of 6 065("t wr~cbe-!l . . . 1.36 ,

AMBERYL HANDLE WRENCHES H ardmf'd tool-ftHi IIOCk~t WTenehH. 7 ~. 100 •. With hollow Iharu oDd eboclr.t>roor uabre-akoble pla"lt ic haadle. SbPI . wt... 12 oz. ~h.

"5-800 ~. ..5-80.. % . Stoc k NO'J SI.. I S tock N°'1 5 1 ..

:;::g~ ~: ::::g: 1):: N~\-'l~~ .... . ~ ... ...... .. ..... .. 42. "5-810. S.t .. l .... nch .... NET $2.90

~!l5:1-.:.!~ ·F~ro~~::.0:: ~T~.~~ , 8 1 e

" SOCKET WRENCH SET

HOLLOW HANDLE SET oCt 10

111111},)

COalpouud~ of t~ hi&b"t aradt do aDd Ic-ad . Flu filliDI :u~ur" ~allY flDw . SlaDdard 20r. tiD - SO'-o Iud a lloy. AIUmlDUm aoldlf'r .. baolutely bold. aluminum .

I ROSIN CORE I ACID CORE I ALUMINUM

QuanUtr N.. NET He. NET Ne. NET

llb~' II~l :: ::g~ ~I~l::::~: ~~~ :::::~sl!l~ 5 lb. llpool 46 - 902 S3.00 " 8 · 807 S3.00 . .. . . ..... . ... .. .

SOLDERING PASTE TINNING BLOCK Cle-an. IlDd ··lla.-... ~.!l1I1 ~e~~:=.t~~ .oldaill& iroa.s or

ch·an. DOD-<orro-j,,'e job o( !K>ldrrlci. Unl· form quality. Alway. dependabir • •

46 - 915 . PER TIN • ... 12. 11 FOR . • • ... 11.08

copDC!'n very quickly . Replacn orrli-

~!iirj~~!~: --..... .

"VICTORY" SOLDER Available W ithout Priority

A ~w rosioooC::On' IOlder 3ovaH3obl~

ti-::.h0E!.~'!.o:ttY~. ~t=k ~~r, eveo 3 low w:llt .. ~ lroo. 4 e-9.0. I lb .• pooL N lT . . ' 4 e -8.1. 5 lb . • pool. N lT .

PRODUCTION SOLDER

:tu~~~U~~Yu~~~a~!d:O%~~;:~.6% r:d mJztun. SuppUItd Ollly 00 "poole oontainin. IlPprodmalelY 20 lb!. . WeliCht may vary a f~' pound. dthft' way . Awall.bla o nl y on

4r:~97·~~hp::~b~tt~E'T~~ ~·~ ..•. ... 60c

ICA SOLDERING IRONS R1~t 18 of tM bllhnt Quality resi'taD~ win. Will bHt Ie thsft' minute.. Handle rr--

:~~~~::ul'W'V~Pt~~~il!r~~~~ ... · .35. 50 W.tt. A. medium weixht iron

~~~::~"~ .w~~ .. trh!. O~[T . S2.94 ".-836. 15 W'tt. A. ROod K~tH'1"aJ · PUrJ)Ofte ;:E"t .%~ Up. Shpl . W,_, 2 Y, I... . .13.82 ...· .37. U S W.tt . 1It>;Jvy Duty typp; h:ut

rflM~d~uri.~I~. ~.I~~~~~. ~~~ .~~:. S4.4 1

SOLDERING IRON Tips

:1~h ~rtaJ~~t ~~~;~:o~~us:~.t~.co~'ib. StoCl. No. SI 2e NET EA.

:::::: t:l~: 28e

MAGIC STYLUS SOLDER ING PENCIL

~::~~r li~~:':!i~:l~1 r::~~~ab~~le.~i:~ COrk fin~ Jl:u ::ard . \\'id,5 fLcord . Uadf>TwriteN' Approved . Shpl . _'1 . . all tH~ •. I lb. "6-500. UO Velt AC or DC Ty~.

~~r~~1B;:a~t::'~I\-~:::'::~H .. . . 98,

DRAKE HEAT CONTROLS

Keep,<! aOD hnt~ ed to proper temperature. ReduC'· 1.."lI opcl'atinl co s t. Dull alck col 6a i.h. Sbl ppiDI 'I'I"~i&bt, 3 Ibs.

".-5"3. TrIM lOGH.

46-920. ~ lb. NET .. .. 15c

:: ::~~ : YJ ::: ::~::: : i~~ ,

DRAKE SOLDERING IRONS

DELUXE MODELS Hieh quality Uodf"rWrite ... • lDSP«ted lroulli. FlDest pade D.lcbtome wire el~~t. CoP~r

g:,ll~e 6~i~~~r:! 13 b=:t!ltd~~~~: With 6 foot he-ater cord. pfUi • and 7· !ltand. For 110 V, AC or DC. Removable tip8. 2 lbs. 0& 6 - 530. 125 W. tt . Le-acth 12·; tipdiamrtf"t'"

~.E::[\- .~~t .~~~ . ~~r .~i~ . S2.94 4 6-531. 21e W.tt. Le-actb 14'aipdlamrtrT SA·.· For auto work, lamp wiriol . home r~

~a:t .. " .I .h.t .. f~~~~ -:'.ork. etc . ... S4.8 5 0&. - 53 5. ~. R~pla.cement Tip. !,oi lb . .. 2 9c 4. - 53 • • 'I, "' Replac~ment T ip. !..s: lb . . . 49C

PRODUCTION TYPE IRONS •• -S80. 100 w.tt Ir on. For C'OaUnuou. 24 hour errvic:e . Comparable to hiahnrt Qual ·

i:,~;;~.s . . ~~ V,· tiP: ~.t .•. ~ .I~ .. S4.88 ...-552. 200 W.tt I r on. Same a~ 46-550 ~~/:.~~~'~.~~rl::.ted :lt S200 watt .... NET ........... , ... .. 6.25

STANDARD MODELS Sturdy d~doble Uoderwriten' In.apect.~ irons . H~dD& elemeots of hi.h~t·Krade nichrome wire- 00 :ltnlx-r mJca. Tipe are tr"tal

~rrrfit~~ ~1hsi:n 'dur~~tt: ~I!:t :lff:!dl:! r~ma.in cool . F o r 115 ". AC or DC o~ratino. 46-52'1 . U W . tt , LaiRth U·; '.fa . !lCrcow· OQ tip. Idnl for any "Rht IIIoOlder work . Wire ek-ment ea:U'od5 Into tiP for fallter b..-atlD&. With

~'i:~:. ~~~ .';~~ .~isb ' .v:.t .• I lb .... 8le . 6 - 522. SO Wat t. l.....e-Dath U·; %. tip . plunJlet" type. F()f" U"ht radio work . With

·~':Vi~ .~~~:·. ~~~: .~~ .: . 1. ~ •. ~~'. *2.06 •• - 523. 100 Wa lt. t..enKt h 12Yl·. v,· tiP. plunK" ~. For mrdium.Mavy work . \\'lth

'~~T"j~ . ~~"'. ~~~.~ '. ~~'~ .: ~ "~ .... 52 .4·4 " 6-541. 100 Wa tt. 13Vz· lon~ . 'A · tin. ~~:I.Ir;: .. ri~ 1:~~I.t ~aft "'Orl.; .. 51.76

DRAKE " 400" MIDGET AD utra slUall iron . Ideal for do~ connections . LcnKth. 9"" w~i4h5 only I oz. 60 watt ele ment with lA· tie' Nichrome wire wouod 00

~M~~m~p" ~ld!~~ =~I~ne~:'flfI5~ ~~'.~<j.~hJih~·' ·: Ilb: .. ...... 1 2.70

S2 MAKE ALLIED YOUR RADIO SUPPLY HEADQUARTERS

ANTENNAS • INTERFERENCE FILTERS kNIGHT VERTICAL ANTENNA

MOlAGt5 v~rticall)' to match Dfe""--, broadca.u ng tySX' a n ' trona construc tion . Pid:~ ';f-~~~li~~~::l!~I.d st~~~!id~ f'ftident recept.ion ",ith All · \\'ave. BroadC'Wlt. or SW reoM"'~' Simple to install . Guarant~ rUllI-proof. la!Ioulator lurnhhC!d pt'Ovid" PQfIIitivr wnlhrr-prooi inltu lalion . Univr t!loal bracket 011-' lows raay fast r aiDt' to gable or Hat roof . or to chlmncy. 11011 I~IW. etc . Complete antenna 3 8/W"mbly indudt.'s .f, sc.",,:tion 12 foot mallt made of Ad· m iralty br4L .... with lwauuful n ickrl .plate-d fini llh . uni " rr~ moUnt '"~ brad:rt . 40 ff'f't 01 Ir-ad -in \"n-. 10 f.-et of gruu ml

"w, U~htnlbl anl"ltln t . i n ,, " la lo"', f'tc. Shi~

~;V:.:71&~r ·N4[1t. . . ......... $3.75

WARD UNIVERSAL ROOF AND WINDOW ANTENNA

ICA WINDOW POLE ANTENNA A drlu:r.r windo ..... antcnDa. made 0( Admiralty bra.'lI' ..... ith buuuful aJck-eI platr.! finbh . Jdr al for home •. a partmcnt". hOlrls, omen and othrT buildtnl('ll where a roof anteDna L. impractical. Th~ ICA Window Pol~ A nt~nna ill ~.-ily adju!Otrd for th~ ~I,tlon of Jo'rf!Qu~nry Modulatrd 8i,ualll. An adju.tabl~ brack~t at ba&C!' permitl'l maximum pickup of either vrrc.kally or horizonually po. larir:rd FM signall'l. Th~rr an thn-r "rlrK'Oping RC'{iON which OJ)rD to a

~ ma.a.'mum I~n"th of 96·. ,",' lUI muullltinK 8an~. Int'ulator, and in·

tulatrd lead-ID lttrip. MoundDa: bracket is t'aJCily adilat a ble "0 aa), d~~rrd ~tion.

~h;~~~tO. 2~t;T ............... S3'. 1 5

ALL·DIRECTIONAL AERIAL

Made for SIl0"-\.\'3\"t" and

~oi~~r:r,~ ~~~:::a~z:rt'h mas1". pole1l. etc. Ha:'I 40-H . Irad · in . Complete ""th (n!'!ulaton and moun't lna: bracl.:e1 . DHiRped to pr-oduce ITr a,,:r volume and cll'3.rDt"1UI of tone. !\.foun .... in any convenient lIpal..'e indoor". or outdoor!'l ; OD roof or on window !till . 4 It.. .

~~TO.30: .... S3.65

ICA TENNA.SCOPE LOOP F.oWl)' In!'!talled iruddc radio c-abinet. Elim· i nate ll .rouDd aDd au· tenna wir". lnen..,..· cs aelltCti vit>· . T un· inK rana-r til 1715 KC to SOO KC. Small $ze permiu UM' with

midget .rh. Siz:e: 8" "

. '~ ~.: . ' . 'b: ....... Sl.32

SPRAGUE ANALYZER AND ELIMINATORS 8 4 -000. M od.1 M A -t An . . .... r . Quickly determl~ ty~ 01 filter needed . \\ldely u!W:d by POwer compani~. ltef",·u:e-meD. de. CODnect into circuit of devjtt cau:tin& interferrnce. By rotatin.ar: _lector !'!witch any ODe of 60 filter combinations is CODn~ted. into the dreuit to de(.rrmioe th~ COrT'Kt fiJter for iD!ltal1aUon. With interfer~Dce bookJet aDd chart. For use OD II~

~~T~I~ . I.i~~., ~.~~' . ~~·.t : .. ~, ~l~ . .. . .... . •. '" . ...•.• .•..• • 527.90 INTERFERENCE ELIMINATORS

70-100. Spra gue IF-iS. A triple-!lKtioD 6Jter for small motors u'lC"d illl mlxen. fans, drills. etc. RMA recommrodC"d deAiRQ •. Size.

in;'~ ..... ~~ a.. ~ ... ~~~~~ . . ~~~~ .. ~: . . 8~: .. 8 8, 70-101 . Spri1i:;ur IF-2S. Oouble-Slect.ioa 6Jter for medium·sized ma"orl'! up to 1 H .P .• nDd to 220V. U.-d on ttriDdera. drill ~

1lhl.~·. ~ . ~~~d~ .. \~ •. : ~. ~ : .. Sl.59 70-102 . Sprazue IF- Ct . Metal eQC"aM'd. Nngl~-I!IrCUOD filter for UIIIe OD brush CODDtttor of &eneratou. converters. nc, Ca~ ,KfoUDded,

!-;'fr~ . I.~: .~i~:. ~~.~g: . ~~.: .~~ ..... .. 47 c .

!~i!~~Prfii~: ~~'-hC~c1!!fh~~~~~: Ueed with IF-t t O D j -wire di.tributJoa 8Y.-

~rT· .. J.~~~".~~ · . ~.h.~~ .. \~~ : •. 8. ~~ .. 5 1.41 ~~~1f~:b~e;~d~!tri~· u~~ h~f~e~a~c:t~ \'lli .. 6:. ~~~~~ ... "'. ... : ~I.~ ...... . . S2.03

CONTINENTAL FILTERNOYS

or ma .. erially rrduce "manIItalic cau!'ll"d by IIha\'rr", wiJt

ftc. PIll&-ID R~jf!'Ctor-type. For U:ff!' brtweeu radio aD~""'er outl~t .

fiA~P'F:~~~i200V~IU~ ~C·o~~C~ ~~~35~. 8 H~T • .. .... .•• .• 71 c

TYPE GOIDH Wift'-ia suppre"MioQ-type uni .. with tWO chok" and .. wo condense" with .rouaded frame. Mounu on mo"or". wiUlio dia .. hermy or dental maebinr.. dC., drawine le"M tban lOO w atts AC or DC. AllWl for filteriDI lotr1'frre-nce cau!M."d by ftUOTnCl!'Dt

I~-'~~~ !~:.~~~ . ~~:~. ~~' .. 71 c

TOBE RAZOR FILTERETTE

70 - 105. Spracu~ IF-2t . Dual. compact 61t~r with 220 V . AC raUn". Ca.Ae l['TouDdll to

~~~~~ ~:~i'lb~:[i~~~. ~~ ~,i~ .. ..... 71 C 70- 106. Spr3&Ue eN - t . Metal en("a.~ choke of adrquate induc' an~ for R .F . filtt"r-

~~P.~~.~~r-I:'ze,;..:'9~. ~ .1% .... Jt .. ~~ : .. 97 c 70- 107. Spr:li:u~ LF - 2. MuJti~ion filtf'f lOT ~lectric tIIh3,·en. hair d ryltf'll, and olh..,

llntt.- W ... ~Ot rt . a':~·ll.~ .~' : .~~.-.. 52.20 RADIO INTERFERENCE MANUAL Compiled by SpraitUe en&iDetTl to help you dna-mJar tM &Duree of ra..tio iDtcrle:reDce. AU t ypea of i Dtrrfereoce- conJide:red. aDd the r~med.lell suu:est.ed . ID· dudes! datol OD moton. aeoD ~"'~S~O.SbPa:. wt.. 1 lb.

N[T .. .,.C[ .. ... ... . . 25.

MALLORY NOISE FILTERS TYPE Le·IO

LDt~uct(~c~f:rn~cj~~ 8rverr iDtnf~reDC~. InIIt311 close to Doille Hource. Ha!J trrminal lor .,-oUDdJnc to frame of motor or appliaoce. Plugs Into 1l(~220 volt power !IOUrC"e. Hu CODvnUeD" outlet oa top of ca.ee to accommodate c:lu~ of motor or other e1ecukal app11auce.

a~::~n~ta~er~~l ~~I~,~r .di~I~'!~ ~~~ any electrlc-al apparatus dr}-v.-inJ: up to 10

~~3~~·H£j: .~ . I.~: ........ . S5.64

INDOOR AERIAL AND ANTENNA TUNER

Oprra1e!1. a."I a aoi8r red ucer whea u!'ll"d ",; th an outside af:r ial. MOl)' aho be u!W'11 ","1 i ndoor aeria l . lib,

~~T021 . . ... 85.

TACO POWER ANTENNA Pick!'! up radioshi:oal from power line , filtera and matches it to seL May be mountM inllidr rad io cabineL WL, I lb.

~~T~O!5 • . Sl.18

INDOOR ANTENNA ReplaC't'1l out.id~ ae-rial. Condro!'lo("r and coil CDmlJinaUon built iD. &lVt"!l equivalent of 7S fret of wire. M("aJI,ur~ S • Z!l, • .... Com p ac:t CODlitruc1ioD permita iD81aJiatlon in aDV t a ble mooelncei"'otr ('abiDt"t. Wc " lib.

~~T°23. S 1 .45 ALLIED RADIO CORPORATION, 833 W . JACKSON BLVD., CHICAGO, ILL. 53

Belden RADIO PRODUCTS .lWili~:iD-

SHIELDED LEAD·IN T.,pe 8206. Siz~ 16 atrandrd. tubbeT~vf!Ted. <:oppr-r-wlre cooductor with br3idled dDQed.~pper !'Ihif'ld o"lPTail. M uimum capacity J~r foot. 6J.0 mml. I .... rubbPr

:~1~832. 250 FT .. .. $3.89

• 72 OHM COAXIAL CABLE T),,,, 8216. For Law Fr. q uencl ••• Size 14 e:trandM (19 K

28) tionrd wire with low·l~ rubl~ compound, b r::lidrd tiD~' ropprr shield . rubbrr-covenod

~¥.":14g:D,;·£· ~"rOOT . . 13. .7-842.250 FE:£T .. S28. 75

72 OHM COAXIAL CABLE T)'pe 1217. For Redle Fr.· que n el • •• Sl.ze 12 I'OLid tlnDrd c:op~r .",ire conductor with low-

~y:sDM~~;!~D"tielr.-c!tto~r~r~~~ and yu1eaoized rubber Mh~th overall. 0.0., ... 7S" . Cavadty be· twtot"n conductor.. 16.6 mmfd . 1"k";'&lud lor RF ,,·ork. FM aDd Tdf'VisioD. M:ujlDum load. 2.000

.~~~46. 100 FT .S 31.71

TRANSMITTING CABLE Twp. 11211. Beld<"D EOt. T ..... istrd p;Uf No. 12 IIOUd copper wire: with ~lIophaQc wrap aDd .OJS· rubl,)("r in!lulaUQft Q\'r r p.ach. Cov~r~ ov~rall \\oit h \\o'~OIItba" proo(~ C'OteOD braid. 29.7 musf. prr ft. Win handle pawn output

.,1~520~ P·[~"FOOT .. . . .. 5c 4' - 502 . 500 FEET .. SI9.el

MATCHED IMPEDANCE TWISTED PAIR LEAD·IN

T , p. 820 ... 66 .4 ohm lwillled pair. T .... ,o So. 18 C'Oadurtou C'Overf'd witt. color-<"Oded rubbfor and whi t~ W'rathn.pToo( braid . Dr· ~Wnrd to malrh mQtl.t all·wavc aD'

~;~. :J~.dpE~iF·gtiT . 21/zc 4' ~ 6"'1 . 500 n . Coli S9.15

SHIELDED GRID W!RE T,p. 1115. Stranded t i a aed --coPper nir .. \\ ilh '4.. rubber.laCClucnd

~~~~~8~ :t'ftF~~d: ... 2, 4'-'93. 500 FEET .. . . S7.58

81 "@i L a MICROPHONE CABLE

~:cr •. u:l;e S~511:tr~:d~ucat:d Unard. Rubber rore, COltoa-braid cover-rd. braide-d tiaard<opprr

~:I!ckc:~~-;r~; ,~~a21 ~~~~ ~'r--5~:::'''ER FOOT . ... 6c "'7-5.2 . 500 fEET .. &23 . 25

~:cr •. IIt~~~ ~~~,I·b~·~::. ~tj5 : f!600'. ~:~ ~Or:;T .... 4c "" -G04. 100 FEET .... S3.24 T,p. un. 2 - Conductor Cebl • .

~~~~_~~p~ (~t~ ~lort!:d~ rubber jac krt. and cabled LD a COUoa ""Tap with braided UCLnedcopper IIhleid. and rubber jackrt ovn-all . Cep. ~r f t.. bdweoc'Q CODduct.or and IIhiddti0 m ml .; ('Ond ..

4~'iioa:a-;ft~'fOO\~' . 6c "'7-"'52.100 FEET •. . S4.68

l!k:-8:~~~ ·b!;~:;.d~~~~~:,~::,: ~n:_4h~~~ ~E6~ r~~·T .. .. .. 7c ... 7-.... 3 . 250 FE£T .. $ 15. 27 T)'P. su~ . 4 - C.nductar Cebl • . Cap. P"" It .. brt Weoc'D CODd . aDd IltUeld 67 Dlmt .. bet w~ condur-

~V:l~::~~·E~I}·O·~~~· ... . 9c 47·473. UI FEET .. SI8 . 82 T,p. IUS. 5-ConduC'tor Cabl • • Cap. hetwffD Wir~8 and "hl~ld.

~,~:ij~~rE'R~O'OrT 1 01/2c ... ' - .... 3 . 2Sa FEET .. S23.4 9 Trp. 1142' . '-Conductor Cabl • . Cap. bet. we"t'G. win .. and "hleld. 60

:f!~;g.~ l~ FmOnetT 131/2c ""-"'82. 100 FEET •. 110.94 T,pe 1.127. 7_Cenductor Cabl • . Cap. hetwffG ~ir_ and .hield. 56 mmf.; betWfta wtra. 26

~~510. HR'F'OOT 141f2' ""-51.2.110 FEET .. Sll.70

SHIELDED MIKE CABLE T,pe UU. 2-Cenduct.r Cabl • • Sin 20 .ttaAd~ OIIad liDDed. cov.

~berwitj~c:ef.a~d w;:ror!-od~ C'Ottoa·braJd. ~ith a tlancd<o,) per "hl~ld o,·It'!':J.JI. Cap. peor ft .• brtweca road . and .bi~ldl 61 Inusf.;

:~':;'i'J:~':·A.1~ glcrT· .3 1h c "'7-8'2. 250 fE£T .. S6.6"7 T,pe un. 3;-C.nductor Cabl • . Cap. bfotwreo '\I.irC!l and .hlrld, S5

2~~.to'.~~l2 'g'~T 4 1/zc "" - 88:1..100 FEET .... &3.54 T,pe '~14 . 4-C.nduct.r C.ble. Cap. bc1.w~ wiftll nod ahieki . SS

:7!j.~~P E~ FO~T .. 5 1/Zc ""-891.100 fEET .... S4 . 23

MUELLER CLAMP POliltive contart

f~:~!ld ~l.:!.~,; lion . Max. btl.e' IU·. Ca.oor- hardeDl"d 1ICft .... RUlIIt prool .. d. Shpil.

;~·-~7~. NET .Se 10 for . 72c 100 for .... • G . ...

\ ._, RUBBER·COVERED TYPE TWp. 1652. 2-Conductor Cabl • . S . J. T,pe. Size 18 (4Is34) cotton wrap and ~. color-coded rubber

~d~~t :O'iS~I~ bb!!h .h:-t~'!.nv:.~~r ~·r':4i~~·PER FOOT.. .3, ""-413. SOa fEET .. SI2.01 T,p. un. l-Conductar Cebl • • S.m~ ~II 8452 abov~. but coVft"Cd overall "ith a .040"" rubbu .hralh .

~f.·4i~~·~[R FOOT.. .. 4< ""-"'23. 500 fEET .. S16.09 T,p. u" . • -Conductor Cabl • • All &452 Dbove. e1lttpt 2 numhrr IS ( 41 II 34) gnd 2 Dumbfor 20 (26 • 34) with a .040'" rubbrr

~;~~3g:r:.[~~OOT . . 5 1/ 2c 47-433 . 500 fEET .. S20 . 75

.. MORED CABLE T .. p. 1212. 2-Conductor Cabl • . T",,"U "iae 18 aUanded tinDed· copper conductor •• each in. COlof cod~ cotton·wfap. Tb~ ~

r;;a~~R~~rr~th!ith ~.p;~ Wrap. aDd a 8c&.Jblc IIt~l.armor ovrraJl . Oulside dJamt>tlt'r: cabl~. . 155· ; armor •. 260"'. An rxnell~nt ~~r~ purJ)(MJlt'. public addr_.

40.4 _~~?~[ 'irb~~o OT . . 3 1/ 2c 47 -".2 . SII FUT .. S13 . 02

.PdF' 80= HIGH·TENSION CABLE

Tr p • • US. 7 mm. Pvro-Glaze

~1~f!id'~1iI~~eaw..ir;;..J!:D~<OPprr 47 · 7.0. PER FooT ... 10. "" - 782 . 100 FEET .... S8.25

CELLULOSE ACETATE PUSH·SACK WIRE

Tlnard<oPper roaductor wilh <-rllula.f: wrap. aad la<:qurrrd abruoo·proof. rayon braid .

In SOD 'oot roll. onl,. 11 S.II d II Sua nd.d

47 _050 . R ed. U-060. R~ " _051 . Blark " -KI . B IOIId: " - 052, 81u~ U-OU. Blu~ 41 - OSl . G r eorn n - 06] . G rftn U - Os.c . Y~llow " - OU. Yello~' PER ROLL PER ROLL NET .S3. IS NET ... S3.60

20 Solid 41 - 070 . R ed n _071 . Blad. " - 072 . 81u~ 41-on . Greea U-IU. YeUow PER ROLL NET . S2.6S

20 Stranded 41- 010. Red " - 011. Slark 41-ou. Blu~ 41-ou. GrffD 41-014. Yellow PER ROLL N£T ... S3 . 0S

APPROVED P.O.S.J. TYPE LAMP CORD

!':.~~~~~:r~:1; rJ:.":'~I:~ra~d~ COppeT wtr~. Ht'parately Inlllulatl!"d io toucb rubber pull -apart IIhf'ath .

BLACk .... -770 . PER FOOT .... 2 th:c 4S-773. 100 FEET ... S 1.68

BROWN 4.-7GO. PER FOOT ... . 2 % c 4S-'G3. 100 FEET .... S 1.68

INTERCOM CABLE T WPe 1799. 1910lid COPper wih!' . 2<ODd . EDamdetJ . cotton wrap. walrel color-eodf'd rnlton braid. t wj"ted p;&.ir. aDd OOrr COpper

:;~~(~9~.();'·E~4:~OT . 3c 4, -S92. 500 FEET .SI0.23

T,p. 1712. Sizc 20 !IOlid linaN cvppc-r conductOr!! "ith im p rf'"lu.atcd COllon wrap. cottoa braid aDd braided tiao.:d-<'OpPet' Ilhield o"erall. Twhtcd pair af~ lndividu~ly colton-wrapped and cov~rN whh Walled. color-codrd

:tt~:9bS~i~.£ ~ ·~o ot.r.~ .. 3, 4'-1198. 500 FEET . . S 12.31

SHIELDED TWISTED PAIR T,pe .,.,. Sut> 18 at.raDded . tiDDed-coPper col'lductor!l with COltOD 'NTap. color-<Oded rubber jacket. twi"ted and cabiN with

!h~ ~~j'wb;:g:t_~~::r!t~~~ .tt~a~o~1; E ;:vFr& I~T... .4c 47·.53. SDO FUT .. SI6.88

R. C. TWISTED PAIR Trpe 12DS. Siu 22 .. tranded tiDDf!'d ropper . paper wrapPftl. ,u~ber·rov~r~d. rolor -roded • t"""'-ted pair with w~ath" .proofed rolton-braid o\·rr .. .II. O.U .• . 180" .

~O;_a~~~~E';!ltl~a~iT~ 'llj2' "'7-863. SOD FEET ... S6.21

KNIGHT WEATHER. PROOF RUBBER SERVICE CORD

Round. f1~xib'c. "'~:J.tb~r.proof C"3b1r. No . til 116/l0) I'tr:J.Dtied wireroaductora. e1Kb rubbrr coy-

~ ~~ ='~~i";~t~uc:t!!~:b~;~b. 2 CONDUCTOR

:~::g~: rOO ~=tt ... : S3.~g 3 CONDUCTOR

:~ :::~: rOO ~~tt: .. S3 ~ ~~

FLEXIBLE SPAGHETTI

For ilUulaUn& :lny bare wirr and con dCD!IC'f and rt-.I!ltor

~~~~t~a~~:rii~~ tu'\!i~~~Y 1m·

... 9-200. Black . P.r lO" L8th. 49 - 20 ... . Vdlow. 8 N£T 49 - 201. Red. "'9 - 203. G.-.rn . c:.. 11 LENGTHS FOR . 72c

GIANT SPAGHETTI ' BI 3C' lo: rambric tubin.: . impM"l' naud with 011 "arni.h. 'A . Inlllifle

~~::c'J~6~~n;~: .,. 19, 10 LENGTHS FOR .... S . ' . 71

SPAGHETTI ASSORTMENT

~onh~:11,:~:h; of IIpallbdti tubInl la a~lIorted dJamdf!nl. Eacb ,)i«e I. n,,· lot., . Sbp&. wt .• I lb. 49-220. NET 45<

54 SPECIALIZED SERVICE FOR INDUSTRIAL AND GOVERNMENT ORDERS

HOOKUP & MAGNET WIRE -- CABLES AERIAL WIRE

HI.h-quaUty hard-drawu IJtraade-d type capper wire. Haa biSh conductivitlf aDd very little " !ltrrtcb: ' Enameled wire will DOt COrToch ... Ide;&) fDr aU t)'~ OIl aerial .. : 5la/tle wire. doubld. or multi· wire: for AU· Wave. Sbort· Waylt. or 8 rOlldcast IM:~ Wt.. 2 It.. fDr tOO r«L

75 FT. COIL5-8ARE

~I SIZ· I~II 'O COIi' :::g:~ --mr SO:J~ S~ :8~

100 FT. COILS I :;:g~~1 7~2 I :~8 ~:~g ,

PUSH·BACK HOOK·UP WIRE ~re hl:~:!t. ~:~\~blf!°,r;:)'bo~bc:!~t,!dn"t~:.r:d wiN:. Tbe 8traaded wir~ is madt" up Df c:ardully

~a~~;:!:~~~~I~~t~~ of ~::~te~: 8~~~11!:: ~I~~ A~~~~b':~oo:" b.r.~d c~'~~irC.~ ~~:~r. :!~~ .Iue, Gr •• n _nd Yellow. ShPI. wt l'l.: 25 ft .• .c 0% . ; 100 ft •• I lb.; 1000 ft., 5 lb:-!. IU oz.

SPECIFY COLORS DESIRED

NO. 20 SOLID I "8-329. 25 ft . coil. NET .. laC "'8-339. 100ft. coil. N[T .. 64c ... 8-34'. t OOOft,.coU . • . 15.15

NO. 20 STRANDED 48- 358. 25 ft. colI. N[T .. 20c 48-3 69.100 ft. coil. NET .. 7Sc 48·379. 1000 ft. coil. .• 15.95

COLORED RUBBER HIGH·GRADE MAGNET WIRE ON SPOOLS

HOO~-UP ...,.-wIRE

'.Uil e".'!.1

HOOKUP WIRE A elranded hook up wire made of .:Hl-drawn No. IB tillDed copper wlt'e covered with a COlloo wrap and Bve nOD-craddoc colorfll rubber 10-aulalion overall. Wt8. . 25'.

huulated ~opVt"r wire of hili:h~ Quality for all radio and elerc1rlcal pur1J(Heli . Wouod OD llpool. iD cootinuoul' lencthfl. Ellcrllrnl for ""'Iodina armatures a.a.d held coil&, receiver and tr :uumiUer coil •. rewiodinc power tran!l(orm~rs and chokt'1l. For !lhOpA • Khoob. laboralone •. r~Jo .buJldcn. CSJMTimentl"n. etc . Standard B. &. S . Gauee.

~~:.?~1~~il ~~b~:d~~n{n ~ar~~~~a~3~~ l~a"naU.~~=~ .. ~~~io:~e~ J'I . ,~( ,

lity priCOll. Sbpt. Wls.: 'A lb. '1>001. 9 oa.; VI: lb .• pool. H oz.: I lb. spool. I ~ lb!!. 4 oz .: lC1OO'. 5 Ibs. 10 oz.

25 FOOT COILS AyaJiable ia. five colo .... : Black, Red. Blue. GreeD and White. Be IIUff!" to s~fy color de-

~~.w~9~ ~5d::!~I';'il . NET • ...•... • 19c 1000 FOOT COILS

Available ID four colo,. : Bla~k. Red. Blue aDd

~~tlos"i~~:td~f.edNET ..... 1 5.85 25 FOOT COILS NO. 16 STRANDED

No. 16 IItrandftl hookup wi~ with C=-llIT'f'nt c-arryiDC capacity or 7 amlW'r". Available ia.

:~ 19~15 ~='~~~~4~~' .. . 3 2c

PLAIN ENAMELED v. LB. SPOOLS

DOUBLE COTTON 'I> LB . SPOOLS

S. C. E. 1 LB. SPOOLS

HEAVY.DUTY AERIAL WIRE GENERAL PURPOSE MULTI·CONDUCTOR CABLE HARD DRAWN SOLID SOLID TINNED COPPER

ENAMELED WIRE Hnvy duty aerial wire- lDade 01

SINGLE CONDUCTOR LEAD·IN WIRE

R. C . STRANDED

~ Strand~ No. 18 ru~ brr-eovered lead·ln wirr . Fln:lble wirr: yay ea.ay to work.

Stoc"~..!.; I~I~ ::::~: ~~~t S?:~3 •• · 825 1000(,,- 5 . 10

~ SOLID

Hicb quality No. 16 , rubber COv~r..d lead-In

wirr. WratbCl"proof .

S'!!!~·~~'~I~ ::::n ~~rt iO:U .. -.3. 100 It. 685

SHIELDED STRANDED

NO. 16 STRANDED WIRE

:;:::Xed =~&o:~;a~~:: ~o~ per shield o'·crall . WcathC'Tprooi.

:::::~I :: I fso ft 'S3~~O

fin"t qualily copper . Thr wi~ ill tinned. a factOf" which pnmihl

~;y d~c~' f~~~. por~ pro.simatr ahippl.lltl; wd&bh. 2 IbIt.

47~;~oI C~~ •• 1 y~ 1$~~gT! 47-530 J2 100 1 . 47 - 540 10 100 1.

TWISTED .. AIR LEAD·IN SHIELDED TYPE

PartIcularly IIuilable for aUwave and doublrt aerials. Con~IIU 01 two No. 20 mUd C'Oppcr

~n~~~~~ da!~l:te::nli~~:~ lfUlulation with clo!Jltly .... "oven

~rl_b~r3cg~n :IFli'o\ .... , .3c •• -.32. no ,. .. t . . . .. 12 . 65

WEATHERPROOF

, , ., .'Jl·'-• -n""''''' _

Two No. 22 straDded copper' conductorf', rubber con'r.d ..... It h puralllD.ed braid oYnan. Com-

~!r e:b~:t~~i~P:C:!it1tu~~~ u_: for low Impedance traQ5-

~8~~~~~~'Ee:rC 'FOOT .1 Y2c 48-842.100 F •• t •. . .. S 1.20

RUSSER COVERED TWISTED PAIR

For all noi~· reduclna: doublt:t antenna sylltem~ . No. 18 twisted rubber-covercd .tranded wire. 48-85 •• 50 ,. • • t ... • . SO . 71 48 _852. 100 ,. .. t . . .. 1.34 "8-853.251 F .. t . . .. 3 . 18

TELEPHONE WIRE Twf.t~ pair No. 19 !lOUd tillDed-

~PP)~!d~!~~ ~Ids~l::;~,: For ~ndoor 10w·voIt0l3~ In!ltalladOD., lIucb .u tdepllonr Or iDIItTCOlD .Y.'rm •. PA !lpeakera. flc.

2 CONDUCTOR 4.-.1.0. ".r Ft. NET . .. . 2 ~c •• - •••• 100 Ft. NET .• S2.25

J CONDUCTOR •• -.20. ".r Ft. NET ... 3~C .8-82 •• lOG Ft. HET.S2.90

104 UL TI·CON DUCTOR 'STRANDED CASLES

Conducton are No. 18-16 z JO siranded unrwd copper wire-. Color coded; wilh live rubber jac.krt and bra .. cotton braid overall.

Per 100 C.n4. No. f' oot r • • t - 2- :u:&iO ~ Sl .82

J 48 · 820 2rcC 2.37 : :::::g 4~ ~: 1I~ 6 48 · 650 5 v..c 5.21i

LAMP CORD

Uade""TitCTl'll' Approved. No.1 S~. nabber iruulatioQ with blaek

:~t~=:;'dp:;e;~~·t .. ... ... 3c .8_883.100 Ft. NET. S2.05

GUY WIRE so _ It. coil of laJ'\,aniud 8lf'e)

;i~~3~!;-. I. ~~: .... .... .. 1 7 c

CARlON Io4IKE AND UTILITY CABLE

Con."Ii!lt!l of No. 1S-16z .1Otinneci

~c:: ~ :~t!!. ~~ :nd~~~ ConduetOl"" arr . in tinnlt'd "hieldina with rubber cover Ovt'raJl.

SHIELDING OVERALL No. 18-16 z JO stranded tinQed

:CC ~:I~~l:" ~~:rn ::~e ~':! ductor. Conductorll are colOr coded. Tinned shlrlded braid 0,, ~ra.l1. A vt"ry durahlr. fleldble cable \'\'1lh a multitude ol U!IeL

SPRING AERIAL Sl~cb of IS to JO h. Fiber- rnd

~J.~~gro·. ~~·T" .. . I~: .... 16c

'Q SPRING ADJUSTER

Prrvmlll antenDa !l3« . Por{"f'la.in

1:i.~3tgr.~r;·rcli : .1. ~~: .• 24c ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL. SS

INSULATORS · JACKS AND PLUGS E. F. JOHNSON BUSHINGS AND

FEEDER SPREADERS

LEAD· IN BUSHINGS 113.\'r ma D), applk3tioa, ill trOUJlJmittn- and an· lMUU irutaliaUoD!II . Ty~ S5 b ultra-lte'atitl!, otht!1'!!1 are white llue porcelain. Types 50. 51 , 52 and 55 have Dicke-led bras, rod and nuts.

Stoak Mfr' •. ';:o~:I I N [T No. Typ. rio · Hgt . 01 • . -rr:m s0- D ,~, ~ TIU< 71·161 51 0 • 21c

71-152 52 0 Iv.- ~~: IV. ' 29c

71-16) 53 B I,' l~' lh 71-U4 54 A 4 J ' 2~: ~:~ 71-155 55 C \I.i ' "

I ... --"'''' ... ,@ FEEDER SPREADERS

:W;® For UIIIe jn -.11 t~ of feeder IiDeI, either Uara-

~~(I::-~~ wbite IIlut"d porcelain.

Ty~ II (Fia. B) prevenu twhtiac. For 2" liae ,pacina. Olben art' ~':E~' ban.

Stook I Mf"' , I I N£T __ N_._._ 2.!.!.!....~~~ 73-1.1.0 31 1J •. 'IC 73-111 112 A 2" C 73-1.12 tJ4 A .' 1 e 73-113 136 A 6' 1 c

AIo4PHENOL CO·AXIAL CABLE

LARGE STAND·OFF INSULATORS

HI~h· .. rade clazed porcelain COlI' a(ructioQ with deep corrullatioa •. CadmJum.plateod steel ha.rdwv('.

r~;!~:;r.S~: .. 11~hi.:. i th bur NET t .. CH .. .. .. .. .. .. .. 37. 51 .. 207. 3~' hl.h. with ba~

~;'"'tu""C·H .. ~" ~ lb . . . 18.

FAMOUS E. F. JOHNSON QUALITY PRODUCTS

• ......".=---.._.. © £1,0 JOHNSON JACKS & PLUGS

Stock Mfn. No. T)'P. rill.

n:rn- 20 --;;:-7J·1D 20) B 7]·122 22 A 7]·12] 2') B 1]·12' 24 A U·125 00 C· ~ 61 -co 7)·127 65 ~ 7)·12. 65J 73·12, 60 0 71·1J. 00) 0 7)·IJl 67 0 11·112 67) 0

Bod)' Hard. NET H.t. .ar. [AeH

:~: -.o:Jr --;c 14J n.

I' .·32 .. I' 14J Ie

4~ : 6·32 5. 1A·20 '".

l t3:J¥ ---uc-... I •

~'lo lie 2 " l'e 21.4' ~~lo Jle m: ...

6J .7<

PORCELAIN CONES

M adeol h1&h . .crilde. wblte ,tau, low

i!i::~~OrDf.~d with macblnr .cre ... top aDd

bottom. and with cu.hion walber, ~ply threaded . OD~hole mouDtin,. Av . wt., I lb.

No. T,p. "'a. Hert. Tt.r •• d N[T

~t::: Wt T 7 tl~ 1:: n:::~ ~p ! :0, :"Y2 U: JJ·U4 602J B 1 ~. 74J Ue JJ·tcs 603 - A- - ,-.- --.o::n- l5C n:t:; ~J ~ ~: .1:12 ~:~ 71·1.. 6041 B J' 76J 29c

STRAIN INSULATORS

THRU·PANEL INSULATORS Have bllh mrchanicalsucnath with lona IrOlk · Olaf! patM. Made of white alau porcelain. Fl;;,.t mountina surface; cushion w,:uhe ... . WL. I Ib Stock Mfr" Top P_",I Hard· ~ T,p,!.!!.: Hot . ~ ~~ J)·22S 40 A 1:1' '/). 10·32 lie

White Ilaze Low 7)·22' 40J B la' Va ' 74J :ru a i1b.orptioD porce 71·221 42 A .~. 10·32 14e laiD. Type 32 i~ fa; 77',:!22'" 4442) AB :~; ~J2 H~

~ uu In !labt cuy '"' ~ I reed . 7]·2]1 4.5 C 1',...' f 10-32 2'e

• ~~~o~~ T "'H 7]·211 4S1<:: .-~' ~ 74T ue @ ®h .:t.C;.lrrd.. 73-'32 45701 C I" 11"' 76A.J "e

"an 1M R . n:~~: ::J ~ r.: ~: v,iJO :;: ~::io~.No. TJr F~D. Lr~h.: [~fH '~::r 7).2]5 47 A 4Yz' l)it' Y.. 20 Ue .:.7.:.' .~".:.03:..:. __ .::J.:.8 _-,B=--=I",~.!.'_...; • .::e __ ......;";.;5.:.e -=-=7c::'...;.':..:li 47 J ;\ • Yz • I ~ • 76J 1] e

ANTENNA INSULATORS

w Stooll No. rh o Siz. O •• crlptlon ShP@ . WI . EACH 10 for ~ ~ A 3~' Pyrn: alus. 250W . 1~lb. 2TC SI.89 ...

5:1.-20:1. A 7 " Pyres KIUII. tOOOW . . 2 lb. 7~~ 7.11 5:1.-250 B 3 Glue i)'PI' . I~ Ih. .24 iln~ 5:1. .. 255 C ~~' Glazed po~lilin I lb. 3c .27 51 - 25. C Gland por~taill 2 lb.

;~ .54 4.86

51-257 C 5' GlUM porClI!'laiD . 2 lb. Jl 7.29 51 -2.0 0 t1A·.~· 1...0-10_ whik' porcelaia . I lb. \.92 51-2e. Ii: 2~"IB;D. ~~~~ar!~:11 r::b~:llo. I lb . T --:&3 --s:67 51-2e5 F I .·sl ·0. 12 D'. .24 U~ 5:1.-270 G 3's·",· . _ Porce-Iain tublt . • 0'. ~~ .18 51-271. G 6·x'",·, .0 . Po~laiQ tube . S oz . . 24 2.16 51-278 H J f pon-elaia Eye ",aJlla..ulutor 4 0' . 3c .24 i· 16 51.-27. H ,. I1Or~I:tJD Eye wall intulator . .. .. 4 0' . 4c ,36 .24

ANTENNA INSULATORS 2 5

S6 FOR VICTORY BUY U . S . WAR SAVINGS BONDS AND STAMPS

AUTO AERIALS AND ACCESSORIES KNIGHT AUTO AERIALS

r

I

SIDE COWL AERIALS-FIG. A Mount on aide rowl of car. Triple-chrome plat-

~:~i:nf!i~~~a.i:::!~.~:i~a:eI~ inaulaton aDd shielded lead-ieu. Av, m., 2 It..

~~!~: ~.ri'I~~t~~ .. . . .• 2.32 .7-101.. J-.ectiOD. 23~" to 72' ....• 2.84 87-102. J-oectJOD. ':lUi' to 96'" .• • .• 2.95

UNDERHOOD COWL AERIALS-I TeIncoplc; of tae.vy Admirally B,.... and

~rT~7JOY'~~~ ~a.~I:n:.~:~: In. bracket: other lWO model. h.ve two brac:keU. Low·lou lead-in. Av .• hPl. wt .• 2 1tM,.

rJi~~~ .1NW~0~ .. Es~d~~~.S2.33 '7-108. 3-ooctloD. 2J~' to 72· .....• 2.113 .7 ... 1.07 • .1·.ect.io~. Jt~' lo 96' ... . • 2.95

HINGE·TYPE AERIALS-FIG. C

~~ir:",~h~=t rJ::aO~~~R~~r= ::: ~~~ ~rTl'lt~t •. d~iJ!YIe:d_i~i.,;~n2 'i' ... car

::,.1.1 .0 ... 2:~1~: .2.5.' . ~~ .. :: . .• 1.7 5 .7 ... 1.1.1.. J-IeCtiOD. 20"' t062' •. . . . . .. • 2.25 ,7-112. J-ooctIoD. 23~' to 72" . •..• 2.39

WARD DELUXE CERAMIC SIDE COWL TYPE

P.t~lM _ide ~i antma .. ia J aDd 4 section modd. U.i~ low-Io.

:-\-:~~.:J0~~~a:.u!.t~ ~~r:o=:-t:~r;~:J for hi.h~l .ianaJ-to-Doi~ ratio. Sh1elded lower etaDcbeoD miaJmize. Interfen!llce. "UNI-PLUG" fit. all Motorola and bayonet coauectOr8. With j6- waterproof cable. .7-204. M ..... SXXL 3-eection.

'i.~~~ ~~.~': .,,!t: .. ~ .'~ .• 2 .65 .7 ... 20 •• IXL. 3-¥'C. E.lrod •. 171.tJ' lCi ~1'. Wt .• 2 Illot. NIET •••.. 12.95 97·20 •. lS1L.4·af'I'" 1·. ,I.- II·11t :NI ~' to IW". W •.. llbo. NET .. 53.38

- --~--- -leA LIFETIME RUSTPROOF AUTO AERIALS

UNI·MOUNT UNDERHOOD TYPE

CCMUtnlrted 01 the IDelit Admiralty Br .. with triple-chrome plaUn •. Guaraat.eed rust-proof for life of cat.

~~~.:=. "::~-:r~! lion. O.aJ bnckru of apeciaJ de.iPl pennlt rither uDder-hood or aDiptortype mountJDC. No hole. to drill.

.7 ... 005. The "WASP," 2-.ectlon t.eleecopic. Ezteade from 2.1' to 49'. With dual brackeu and 36' ehielded.

~:'fi"..!-.i'~T.~~· ... ·2.32 87-008. The ··CLIPPER"· 3....,· tJoa teIacopic. Eateod. frOID 2J~' to 7r. Dual mountiD. braclr.et.;

rt:'edN~~ ~:'~·.":': : . ·2 . 94 87'007. Th. ··NEW YORKER."· l...ection t.ele«opIc. Eztrade 31~' to

:::e:'e:.~~r!:.f:.:tl~!'Skeu aDd I ... Wt.. 2~ lbo. NET .. . . 3.23

SIDE COWL Made 01 Admiralty Bran with trlple.chrome platina. Rua:J;.roof . .16-

~!'::~~~. wi .. ~fi!i.rn 87 .. 01.0. "CHANCEl ... LOR." ..J-.ectlon. 20- to

fI~T .. ... ... ·2.65 .7-01.1.. "COM MO· DORE'" J...ection. 2.1Vz·

tll:: ... ... ·2.94 87-012. ·· PRESI -

eE:'~·Nir.ti~.·i"~~ 8 7 -01a. ··COUNSEI •. OR .'· """-etion . .12' lo 108". NET .. . . S3.82

FENDER MOUNT CONCEALED AERIAL

F.ONT WHEEL NOISE 5U ..... E550.

a Elimiaaletl atatic DDbr roner.led iD front wbee" of automobile. Fiu iul,de froat wbeel hub cap.

~~~~:'~ilt ..... .... 15c ANTENNA CONNECTOR

tAN!!!? For Auto Radio SeU. TeI", minatea Aut. leacia.

41·740. EACH ... . . 6c 41·741. p ........ f U .. . . ..... . .. IISc

SHIELDED AERIAL LEAD·IN No. 20 coDduc:tor. low-Io ••• copp.r.bielded cable.

::::~g: ~: 81:: ~I= :ggJ: : : : : : : : : I~ SHIELDED LOOM Fdr t-ft'N"liv .... bi ..... llnB.

::::~g:::: ~::~: B1:. ~I: ~gg~ .~.~

PLUGS, JACKS, ADAPTERS

~h""l5 ® ~nj.-&@ ©

Convenimt fittiq. for t.erminalinl auto radio auteona lead-iD cable.. Av. Wl .. I 0&.

4._2S~?:I"Mp~J.~:~~~.-:--.~~: . ~ .... 7 c 48-211. 5h ....... J ..... NET . ...... I 3c

L EAD·IN ADA"TEIt'-"Iw •• 4.-21 •• Fer 'hllce. M.t.,.. .... tc . . Iac :.~7~!'c.ef6~r:.~r,.~~~I.~~~r~

COPPER SHIELDING

~a.:u=~:'i~~.n1!~w~~t~~ ~:

ALLIED RADIO CORPORATION, It:n W . JACKSON BLVD., CHICAOO, ILL 57 ~- --- - -

FAMOUS EXACT DUPLICATE VIBRATORS Mallon' ~Iatttllenl vibrator. ha~'e ~tfil;bli:tned an ImpoedDK J"e'COTd of ouutandlq prrformaJK'e- b;ued OD fib"t w«kmamhip and quality component... TMM' pred$iOD u .... u provide IOWetif cOBt·per-hour 01 actual u..e. EaltY to Install. Notrd for trouble-free 1001 life and positive tltartinlt . All Installations ate assured of (rredom from Icad breakage aDd broken =!: :ho~~J~=~~~ U~~cdd r.~I~~: r2~3tJ~~a Mallo,., Stool( LI.t NET Mallo,., Stock Lis' NET

No . No. Pric. EACH No . HI;), Prlca EACH

.. 4 2.0 Fl1t 2108 F220C 22. F221 222 22J F22J 224 225 226 230 2.\5 11240 245 2.5..\ 24SC 24SSW GUS W245 WZ45A 246 246A \\ 246 247 F247 248 249 G249 F25. 25J G251 253T

@

5&·000 56·00", 56 · 005 56·006 $6-007 56-DOl 5S ·"' 56...(110 SI-GU 56 · 0U 5S-aU 56 ·014 Si - DU 56 - 0U 56 - 0U 56-01' 56...020 56 · 021 5&-OU 56·02) 56-105 56 .. 02' 56·025 56-.25 56-027 56 - 02' 56-02' 5&-0)0 56-all 56-032 56·106 56 · 0n 56-014 56 - 035 56-0U

$2.'0 9 .00 9 .00 4.80 6 .00 4.75 5 .. \5 6 .<10 7. t5 1.15 8 .40 7 . 15 7 .15 9 .00 7 .15 7 .110 5 .95 5 .95 5.95 5 .95 7. 15 5 .95 5 .95 5 .95 5 .95 5 .95 5.95 6.60 5.95 5.95 7. 15 5 .J 5 4.75 7.20 4 .75

Sl.25 .... 5.n 2.12 l.5l 2.n l . 15 l.11 4.20 4.20 4. S. C.20 4. 20 5. 29 4.20 4.59 l.50 l.50 l.50 l.50 4.20 ].50 l.50 l.50 l . 50 l.50 ].50 l.1I l.50 3.50 C.2D 3.15 2.7. "2' 2.7.

25JV 264 2708 27'"D 27. 27JC 2730 275 2775 285SX P28SY 286S G286S 289\" F290 292 29. 294SW F294 296 297 F297 299 500P 50lP F502P 503 504 505P 506P 507P 508P 500P 5.0P 5.4

~ h<\\\\\\iV«Mi\"«" CABLE AND HOUSING

Hi.:h quality . exact dupt icate cable and hou.in~ fOt" auto radio ~fnOU control sYlttelDs. HousIna il!t parkrriced to pre-vrnt rust. Cable rods ~Ird to pn-,'rat unravrllinll: . Samr make all u~ by m4lDY leading manufacture-no

CABLE ONLY IA)

5~?:00 1 56~!~ 0 I L~~~' I $~~;8 5.-701 5.·711 24"' . 35 5.·702 58-712 lO" .43 56·703 56·713 36" .51

HOUSING ONLY (8) 56.720 1 56.730 5.·721 5.·731 5.·722 56· 732 5.·723 56-733 I . 8" I SO.28

2'" JO" J6"

AUTO REMOTE CONTROL

:H .5'

CABLE AND HOUSING F.nINGS Eract dUpliratH for moll't auto radloll. Match old tittlnll: with 11IU!ltr.tiona and tef~r to list below for correct item . For . IJO'" cables. .

~o. T), p. NET StookNo. T),p. NET ii i · BOO - . - 6c 5 • 09 - . -. - - 6c 56·.01 2 6c 5 ..... 10 12 l1c 5.·&02 3 7c 56-.11 A 7c 5.-.03 4 6c 5 ..... 12 B 6c ::::g: ~ 1 r~ ::::11 g 8~ 58·80e 7 6c 58-815 E 6c 11.·.07 8 6c 56-61& F 6c SB·B08 9 IIC 56·617. Type II . For Motorola .. . 1.50"' . &.·.18. Type I I. For Motorola. .150".

~:JH .... . ,..... ..... 29,

56-017 " -all 56 ·019 5'-060 5'-041 56-042 56-063 n·U1 56-0U 5'-067 51-0U 56-On 56·050 56-on 56·052 5G·05J 56"~ 56-056 56-057 H-05' 56-159 5' · 060 5'-061 "-065 56-066 56-067 56-061 56-069 56-070 56-011 56-072 56-0ll 56-on 56-075 5'-076

'-'.55 5 .95 7 .'5 7.15 7.15 6 .60 6 .60 7.15 7 .15 8 .40 S.95 6 .60 9 .00 5 .95 6 .60 4.15 J .55 J .55 5.35 J .55 4.75 5 .95 4.75 J.OO J .oo 1. IS 4.i5 4.75 J.oo 4.75 J .oo J. oo J .oo 3.60 5 .95

S2.~ 3.50 4.20 4.20 4. 20 l.1I l .1I 4.20 4.20 4." l . 50 3.18 5." 3. 50 lJU 2. U

· 2. 09 2. " 1. 15 2.09 2.n 1. 50 2.19 1.76 1. 70 4.20 2. 79 2. 79 1.16 2.79 1. 15 1.7' 1.75 2.12 1 . 50

7.6 722A 725 G725 728A 742 74J 744 745 G145 M 1.5 148 825 826 F826 G826 839 850 G850

852/294C 85J 854 859 860 870/ 86J 866 868 869 OO.M 902~1 oruM 951P 952W 9.5JW 954

56-077 56-071 56-079 5'-OSO 56-Dill 56·082 56-08l 56-0U 56 -107 56-101 56-109 56 · 112 5'-085 56-110 55·086 U-Ul 56·011 56-Oil 56-0., 56-055 56-091 56...092 56-Ill 56-093 56-0" 56-095 56-096 56-091 56-098 56-", 56-100 56-101 5'-102 56-10l U-lG4

$..'t .I)", 5.95 6 .60 7.80 5.95 5 .95 5.95 4.75

1 .. ... 0 18.00 18.00 5 .95 5 ."0 4.75 5 .95 5 .95 4.15 J .55 4.75 J .55 J .55 J .55 J .55 J .55 J .55 J.55 J .55 J.55 J.oo J .oo J .oo 6 .30 5 .95 5.95 5.95

MOTOR NOISE FILTERS SINGLE

CAPAC.TORS Meta l· c:-a " efi com· p a ct b y-pa~\l c:-o ndrn!+t·rs de.igned. for inst a lla tion on all . ource ll of inter

5].50 1.50 l . U 4. 59 ].50 1.50 l.50 2.n 1.'1

10. 51 10. 51

l.50 l . lI 2.79 l.50 l.50 2_U 2. 09 2.n 2.09 2..' 2.09 2.09

U;j 2.09 2. 09 2. 0' 1.n 1.76 1.16 l.70 l.50 l.50 l . 50;

USE YOUR MALLORY ENCYCLOPEDIA

Sec lhe n~' M a llory Encyclopedla

~c;r3t~ ,,! ~~~~~ f't: r.=~: (Ion. li.ted on page 89, give-. full data. Cover-e lhou.sand ~ 01 model! ;md e ivr. ori&iaal parl~ number-s. ll)dud~ d~ar and ronci_llUllruc_ don~ Jot l ~ 10inaliatioo 01 ~xact duplh-atr vi bralor". Pro, id ..... accura te Inlormation about vtbra(or conn«tioD!t by lIIu!ttratiag thdr a c:tu;d ap~araDtt and ba8le-piD coaQl!'CtioDS. ~t ~'our copy of this v al uOible I:fC"f\"ice Kulde now.

FREE VIBRATOR GUIDE Wrltr for a FREE COpy of the Mallory Vibrator Guide. COD"iM complete Ii!ltina: by MU o( 'Vtbrator rrplacrmenu lor thoueands of auto radios ; valUable data OD vibrator aod automobile !IIIet

~~~I::!:o~rci::. ::Sp=~:: 37·012. Vlbr.tor Guide. S.nt FREE on requHt.

111,i~ A 8 C 0 [ ,.

ference. !!Iuch ::.., 5!enl!'r8to nl. ammdMS. horns. etc .. to rl imi n a tr troublesome noi~. Ulle 1 mfd . d irectly on r COf!rat o r. Va mfd . on arumet~. hom. etc.; v.. mid . On !lmall accessoriC'S.

KNIGHT AUTO RADIO SUPPRESSOR UNITS

Compact ("arbon type motor noise Imppn-"'4OrL For 1I :tC on a ny automobile rngin~. \\'111 cut out practlcaJl~' all ianltioD intrrferrJK'e. Wt .• 6 oz... ~I~I S ' " I Each 1'0 F •• 56-510 i1 tr"~" 15c $1.35

;:::I~ ~ •. ":~ ,: ~~~ ~:2~ 56·&13 1 1'A"&l'" 3Ge 3.24

DOME LIGHT FILTER

~::gl:; 1 ~ I I ll;~; I ~~~ I $~: ~ ~ -Choke and coadenll('r. tCondenwr only.

MOTOR NelSE FILTER Combination h i J:h-f~uency fit ter nnd adiulltable baJanc; nJ: ciKulL El imin a tOi supprC1l-!tOr~ . Int.ericrence i" " oola ncc:d out" n-aard leSll of freq u ency. b y m euu o f manual Induct a Da' control . Hou~ i n !lh id d ed m etal CG~lainrr J'.4I:2'.4" ; with

,;:"k~~~t~~,t~ . ..... Sl.62

"A" LINE RF FILTER Elill\inate. lIor Doil!lH !!Iuch a.s hum.

~h;~~.tt .rtplfin~::i~~~rU\~a~~ upecially ~uired for aUlO ~ ",;lhout bullt-ia 6ltrn. la mrtal

".:i2'l:';:~i .~'~': ~ .o.Z: .... . . . .. . SSc

Stook No. O •• crl ptlon

56-650. A. Spar" Plult T~. } 5.-.51. B. Di !ltri butor T:r~. EACH

~:::~~: ~: ~h:~ i Y::.. 11,

5.·.54. ,.. F.lbow ,/y~. ~~*:.-:~. C~~~rk PIUR TyflC for 10 For

56·656. O. $O.OOOohm _ Font V8 9ge DisL 8nuh T )·pc. 'JJ-'35 modd~.

5.· • • 7. O. ~Ial emaJllYpr . 50,000 ohm.

~nl:3,:c::~ , .I .~ .~ .~~~!I: ..... .... ... 11,

~~~. ~ @ @ ©

WIRE·WOUND SUPPRESSORS EJlmina\:e1l Dtotor noilM! . Low re.istantt. 601'. 56-.69. PinK type . Fill . A.

~:::~~ : ~l~!b~;or .t~f:: ~~Il . 8. 1. F., n .,.. NET nCH ......... . . 36. DISTRIBUTOR SUPPRESSOR 0

56-.72. R..atC!'tt a t IO.OOOohms.1deaJ (or uar whtte on.l)· one 8uppr_sor I!I

10::: sJ'.:;~u~~voEA~U: .... . 41 c

SUPER DISTRIBUTOR FILTER IGni tion n<>ier filler , Mount. In d illtributur lead

~~~7S~~·N;~· ' 80t . $1.62 58 F" 0 Reo M P LET E I N DE X 5 E EPA G E 9 6

HEADPHONES CRYSTAL SETS ~ THE I NSTRUCTOGRAPH

FOR LEARNING CODE THE EASY WAY

~d:("nt~~t~~:nl~~f= =-t:cdt:n~~'!~ rlt"flired spretj from 5 to 40 word" pn- minule.

;;:~"n* a"'lIre

, ~~c;r~."~rd ~1::~th=-~Kl:h~t:~~: but ,,"thoul Illatic and annoylnJ inlerierrnce. Ifa.!! control!! for pitch aDd volume. Four bioo.

~~s;h~~~m~~d'~ai!! ~k~:.ed!lO'~rh~D!~~~ COln Pf'actice :wnding while Uilltcnllll·in on hi' :oUlmals as profetSiona.l o~rat.or' do.

SPRINCO WOUND TYPES 76 - 1 1 0 . Inlltruct.oeraph with ::Iprinl' wouad

::::!~:'t~:na~~":::c ~~~~~. :u~I~;: type: JO IU~ (1 required), headphones. a Dd

';,"LT\\'L..'O '~ ......... . .. S21.80 7 & -1.1. 1 . Same:J.II 76-110 lillted aboYt. but NI~IT~~~~.uilt"n oedllator . S20.25

AC MOTOR TYPES 7& -1 12. Intlructograph ",ith I to V. 60 eye. AC motor. leo rolls of code practice t;iI;PC, built-Ill DIdllator. aad code book : hut '"" I)-pe 10 tu~ (I requi'M). bUdphoD~. aDd

~hShi~.in. ,,:,~.: .I.'. ~b' .... S34.05 76-1 13. Same 0l.S 76-112 lI~ted above. but

~itIT°.'~t. ~.~~": i.~ ~~.I~a.t:~. . .. s 3 2.50 ACCESSORIES

7 6 -00 15 . Famous McElroy 8>200 streamlined hilndll::~y. See pae-e 6S for complrtr

f~[T~p~on .. ~.P.': . ~'~': . I, ~ .I~ ... . . S2. 25 59- 110. Americao Bell H~ .. dphon('i'!. Stt

f~7t.P~~O~ a.~~~ •. ~~~: . . . .. . • . s 1 .05 TM inlJtrv ctogra ph b ovo ll o ble onty On o rdet- t. with priortty . JEte R.to n.

PHILMORE 1 TUBE BATTERY·SET KIT

2 TUBE AC·DC WIRED SET This 2 tvhe' "ired 5let o~aln Iron' 110 V . AC or uc.:. U-.ce 2 ty~ 16 lubn (I u .... t .. " fee:\ilkr) . W it" plug-In coli covt'finjl Broarl .. : ... "t b .. nd . Coil kit pn-mi15 tuning Amateur!!. Poli .. 'c ('"all .... ~e. ~ lu~ and phODes_

:;'!f~o~·.S~'[T .... . . ......... .. 53.41 .. 3 - 5 J.l . t\1I o •• c.oih, (,11-2 40 m ete,.) . NET, •. . 72C

AMERICAN. BELL HEADPHONES

CRYSTALS & CRYSTAL DETECTORS OPEN DETECTOR

UDiverul-ioiDl OQ swivel arm provid~ quick. accurate ad lu.lIDent OD a.qy ~int 01 ~n-

~::...~~~. oz . Dmes with 52·000. EACH ... 14. 11 FOR . ....••... . 51.26

FIXED DETECTOR EztnmlrJy IIIt1)sitl\'e". Selected ~rylltall1 are- lDC"trr·tt':!Itc!d and permaneatly atljulIled. H OUM:d 10 compact molded c:a..soe. Elim· inat.es bothcr of coDtinual arliustmeat for llensltlvc q>ot.

:~~6Jlr. u[1C8H~~ ' .46c

Thc~ crysta h. arc lolboriltory t~tcd OD very tK'n.\lIUve tn("ten. Cry.\lul ill of "mulne GiIleua.. Fit illl Cry.~

~~"oSc\'lI~ ' nct~~~ . .. 12. It FOR . .. .51.08

·PHONE CUSHIONS ld~1 for thOR who w('ar hl!'ad-

f~~i~~rc~':s'ttr~~~:uc~t1a=~i nnHt (loll IlPO~ ru b ber. Fit.--II

~9~~~o.-P ~ ltii . ".2 ~:30< 10 ItAIRS FO R.. ...... S2 . 70

"MONARCH" CRYSTAL

SET T '-I n~ alation, a5 fat OUI 15 n)ilev a""ay ",jth s;:ood tone and volume. Has dU!'Itprool. gl3U - eacloflcd cry"tal and caU. bratj!d dia l. Crystalline metal

........ 5·'.45 - - - --Du,t'proof. glas.5. enclosed crY8tal; cD,raved calibrated~ja1: bake. lite knob. ~l«tor· wil b "'"Ound aD aoltnoid form f~ bc-ucr rh"'C'Plion. In black. crystalline IDC'ta1 ca~. I lb.

::T~.~.~ : ..... ..... .... ....... s 1.32

MOUNTED CRYSTAL

:~K~~iM ~n~~d~ Ea~C~~lt ~:~~ ~1, 1/!.. c~fully selec-tro and pre-te.atet! for ~n"itivlty. Will fit all IIlandard

~-(gJOC:~~t A~r· .. ~.~ . ~ . ~' .. . 6, 10 FOR. . .. 5 4 c

CAT WHISKERS Set or three. Cornelly desia,.u:d and made of the finnt quality .prinn mt'taL Correct lcD:lioD

(~2 ~~~I~~~li ~tZT . .. 9, 11 SETS FOR .•.... .. ... 8I c

"DOOR·KNOB" TYrE PHONE CUSHIONS

Made o( ~t. flnible rubbtt. Fits all t)'~ 01 headphone..

~'::'~i ;~·. ~~b;. PR .. . 25. 10 ."1 R • ......... . &2 . 25

BRUSH "HUSHATONE" New. dfident pillow. type I~altrr. !.h y be placed under pillow O D bed, couch. or chaJr. EaablN u~r to rnjoy r&dlo pro-

~::~iD~'!'t::. Wl~~h! room.. AD invaluable aid

::~~~~~ ~-:.c~°lfo'~:!:i :c~~n~p~~iOml~u~ for fllmlizat-'OIl. Exclusive Brush princip le assu.re:s ezcdkllt ~roductlon . Will wor k witb a ny receiv~r. Only tv. • ;'1 .·1:;o~":~l·.~ .c.'~d: .'''~' .... 54.85 I.C.A. LOW.LOSS CRYSTAL SET lout)CQllivc low·loN CTY'8ta1 ~t provide'!' Itrnaitivc:" reception. IIOLS ad;ulftable cry:ftal and ldidcr turunKcoil. Cooncet aeria] ilnd .rouod. .lttat:h

f:kbci;:(~lli:~r ~l whisker. 83-052 • N ET •. • .••• •.•• ..• •.••••.••••..


KNIGHT TRAINING KITS ALL·PURPOSE KITS FOR TRAINING IN MILITARY COMMUNICATIONS

KNIGHT 5 TUBE AC·DC SUPERHET KIT Latest KNIGHT 5 Tu~ AC-DC Superbet R~lver til. Thou!'anda bav~ bero aold to radio ttaimn. echools thmuahout lh~ country for U~ u an educatJonal proiKt. Kit

f:;~~~lp~~t.r!.e~~. f~~~:l: formed and punched ch<Ul!lis (no drilling n~ry). ~U~II. s~aker. IK'hrmatJc and pIctorial diagrams. IDstruct1o ... ~ vny e asY to follow. AMembly and winne arc ftimple; no lilpeclal tools ne-toded , A .-,ewdriver. pUeR and .olderinl iron are ail that aTe needed. Tuot'll entJrr broadcast band from 540 to 1730 kilocycle!!.

~:-!~~~;tt~h:::::~~~e~~lt~~ ~~~ ~1:U~~t~l~edl. ~rnJ;hn:Jnf: connec-tioD to outside aerUl If prefNTftJ . AutomaUc volume coouol miniru4e. fadlo •. Includes ucdlcot 5·iocb Perma.aic IIp.:aka.

HIGH·QUALITY PARTs-lATEST SUPERHET CIRCUIT O9c:lllator bi~ RF and IF stagc:'!'li OODtaCt potential biaM':1I audio

~:e~i~~~~U?u~~!u~I\'r.1;t ~l~~dr~I~~:il:~:ron~~~n~~ alon. ai_na l detection. recti6cation. and filter'inK. Five lateft dealKned tJ:. II~A1~:::a ~:~~ri~l ~~ki'f!iF'~;U6e:~tnutrz~:~d ~~~t'1~z~~i-' ~~r6~ti:::~t:UfyO~~f ~~e a::e: rtt~~»!:i for bask ~ucationaJ pu~ at tht. lo~ ~ce. In.tructora. write

~~t ~~~~o~~~iAaT~lt ACC I~r ~=r:ct:D."uemblY lwttructiona.

:3~3;:;~ 6i:;~piete kit. NE T ... 0 ................. $ 1 0.75 83-308. Ca binet for abow • . Att.ractive tabl~typoe cabinet In ricb browD pebbled finisb front. NET .... .. ....... ............... $2.95

KNIGHT BASIC·TRAINING TRANSMITTER KIT An outstanding trainlns n~ for radio cia!J..«'8. D~.l:nrd by ALL I ED rneine"el"S r1IJ'M"dally for the U . S . Army Air Foru. A complete kit of pans. Includ ins: tubn. coils. punchrd aod formed chas.i!'l. oonden~r, . reo "d "tora- In faC't everylhin$: ,.weept mike. antenna and meteor .

~~~~~r::~n~lbJ:dt:!'I~:;lt a;~~ dummy antenna are furnl~hed.

~mi~~~d\\.;ig 6r6Gcomm!~~eoo!t("illator. 6L6G power amplifier. 6L6G modulator. 5V JG rectifier. includlnR antenna tuninl\: drc:uit. May be ullied with any Ilinllleo-buttoD carbon microphone . Includellll lI~ial jack for SiRnal CorPI' TI7 mhe. Operat" Into low. impedance airplane-type anteDlla. Covers frequeDCY raDa"e of J-S to 5 .S MC. &\"C'ry enllioeerina

ouD:l~;ra~ ~:a~hc!u~ p-T~~!::' J~ :~I~~ar~ lr2~8i':r '::I:::: ENGINEERED TO TEACH TRANSMI TTER THEORY

~:DbTt~n~u~ri~d:D"1~1 ~~ ib!u::';:'~f !~d~ m·;~~r:cr.°~r~ vidl!'d for using ~15 MA meter (met" not iDcluded)' Met~r shunts Aupplled for reading ~150 MA tD all cathode drcult. where ~15 MA meter haviDf 2-ohm iDternal reallltaDtt ill u~. Corner ~u OD chusi,. prrmh plaC1ng work I.D an y po!litlo.... Front-of<haNU!I controls are dearly marked. Chassis m~uurC1l 17· s I~ s J.j fini.hed in durabl~ amooth black enamel. Corner rb:tll ha\ .. ~ top ed~~ turned ov~r to reo-

!~tJm~tri~~ ~t~-ol~d!~~~f p~~~;:l:!~ ~~ Ilid ~~~k:!~nf't~,:p:n: trol. Clcoar. eaaY·l~follo .... · KhematJc diagf'am m~lIres Ii· • I.· and Indudn. ch&S.!ti!'l layout and lilt of parte. &hoolll und~r Army or Navy contract to tC"aCb radio \\i ll 60<1 thl!! kit idwly tlullf'd to their prot(Tam. Writeo for free COPy 01. dla.ITam aDd further ddail!l . For liS volt AC.

: 3?'t.8:CotJ~:·l e~lp.r;i.aNwt/~.t:.:~ .. ~: . . . . . .. $29.95

SIGNAL CORPS TYPE TRAINING KITS

I·TUBE REGENERATIVE RECEIVER KIT The fit'llt basic trainiDa kit for Slenal CoI"PfI J . R .T. COUtl~ . A oomplet~

~~e~~r~~~ t~~~~. alf~~[~t~~~m~~d~r;:;~~!:r8 ~r~~~~~~\~ det«tion and oscillation. Furnlsh~d with broadcut ba nd plug . ln coil. Long :J nd short-wave ooil, a\'ailabl~ for extra freq uency ooverage. Completr \\';th IE4G tube. batterif!'9. headfhone. iaatructiona, etc.

~'3a~~:. ~ . foN-:r .~~~ .~~~~~~' .. ~h.~~ •• ~v.t : •. ~ .. ~~: ........ S6.20 ® VACUUM TUBE VOLTMETER KIT

Complrte kit of ,.,-ta for CCDftrUctJoo of tllId~bal:k t~ \'acuum tube voltmeter . Slmpl~ to oon"truct and operat~. \Villllk'&.o.uft DC and rw-ak AC \'olt~ wi thout load Ina circuit under tr1lt. All parh furnlsh~ . inc1udiDI; formed and punched chassis. IH5GT tube. battc·riCti. nc. Requlr~ eoztrrnal DC voltmeter and ~I milliammeter. not fUrnlMhed . Ville It for teaching principln of de!Uatt and operation of \·acu.bm tube vo1tm~ter~ and as an in!ltrume1lt for makin. "'oltace mea!lUftmeDts OD

'1:~:r"C;~.C'Ct N [~I.~~ ... ~~. : .5 .. 1~ ......................... . $ 5.35 FIELD STRENGTH METER KIT

All paM!I to build oompact field 8tteD&th m~ter aDd absorption wavemNer. Built-up unit capable of maki nl comparative m~urrmeDta of trahltmftt.er camet' stftnlth. Four·loch tun1n~ dial ~Mly ctllbrated.

~tr::. ~~f.e "!~fta":!~.fY;,!'U:n1;io.~I"r:I~'m~~tt:; . crG.rbe.}r ;;ttt~r-:~ operated tube i. u!M!'d In modified V.T.V.M . dn=ult . meouurina:: RF "'oltaae QCrOillS coal Capable of accuratr freque-ncY me-iLIIuremenU.

:I~47~·.' ~"E'r .. .. .... ... .... . ............... 57.25

® UTILITY POWER SUPPLY KIT J-rovide-s tluftidrnt pow~ for ~vrnl, amPlifier. and !lmall tran!'llOittera.

Hur~f:.~ii8red ~~~n\I~Y~d:.e ;h'!~a!!t.io~u~:~~~.~~h~~f(":h~r~ ~mC'r. two J~h~nry filter chokes. filter oonden:.e~. adju!!tablr voltage divider. etC. Switch provided for cutting input filter f:Ondenoot'r In or out. AI!IO haM AC on-off tlwit.eh . OutPut. 225 V. or JOU V. at 100 MAo

fi~Y4 ~to~ ·5 N'i: ~~,.,~g:. ~ .. 14. ~",,: ............ " ........ 51 2.45 © UTILITY AUDIO AMPLIFIER KIT

~~a~~~~1 ~~~~!'I:~:~ r~~~iooc'rt+fi~u'~!~h a~~li~~. ~~~n:; coupled to 6Vcr.G T he-a.m pov,'e-r amplifie-r Mtage. Output tran!lforfn(':r hu 4. 8 . IS and 500 ohm tap,o. . I , ·olt fl("ak Input produca 5 .5 watts

:.~:gu~u:r~ce~l~ar;,o;~d f~*~:,~~::. ~~~i~~~~~~i r~::bu~::: mike and tran~ormer tocoovcrt to modulator or P .A. a mplifier : Complete

~~~a:::~. ~uW. ~~~ ". PM 1tJ)(':~~~ •• ~~~).~' . ~"~:' .~ ~~' ••• s 11 .25 @ SIGNAL GENERATOR KIT

~~Pa,:I~~nt:~~I~n:' !;1I:'t~~ cCc~~a'3:mt~~~tlr=i:n .be A~'~~ dt~~I~~!,,:I~!n~o::r':n~ ~"! . Pc~Tt' ~!I;~~Nt~t~~~:-~~~ tri ena l J;e-Deraton. Variable- output Dlay be \. .. librat~1 by means of V .T . V .M . Pro,,·lsion. for Hte-rnal audio modUlator . U*=", 6J1CT in electron· coupled circuit . 730 mmf. tunini: ooDden~r provide!! wide h<f.nd CO\l-

8~4:~~« N[\;-· .. ~ .I~.~ : ... . ............. . ... $8.25 60 LOWEST PRICES-HIGHEST QUALITY-BEST SERVICE

A PRACTICAL RADIO EDUCATION WITH RADIO'S GREATEST BOOK VALUES Up·to-<lat~. practical Radio and Elrct.ronic publicalioo! prepared by COR:llaat revision or all 'SSUt"5 as.sures lalCl tecbalcal data . Tbc:;e tbe ALLIED Technical Staty and leadiDK technical eapert..a to assh5t ALLIED boob an~ worth much mQre t1l4lD our Cltl~mdY low pn~ l~giDDcn. ~ludenla. Instructor\!. tcc:bnidaos. and advaoced radio mea. iodll.:ate Get all au: I Our EduCIluooal Olvi::aoo I. C'ODlltanLly LD toucb These books are an excellent aid durin& the puiod of education and are with the latest \'ocauonal lr.uDlng programs io tJle 6eld of radio an'] iouluablc foe reference duriD& actual work io the fidel of operation. decttODlCS. and wtll be clad to ... IU\\CT your qu~t.Looa..

Sptcial prices on ALLIED lOc publlcotions (singJ. tillo 01' asNHted) : 12 for $1.00; 2! '01' $2.00; Postpaid In U.s.A.

ALLIED'. RADIO BUILDER'S HANDBOOK. N i nth edjtiOD. lonluablf' aid for

f~~~~~D~grad'i!U:-tteo;;.rDl;jjfUO~~~': :! flilf't8 and funcUOtU. maancUam. n:-si!tance. cltttron thf!Ory . inductaRCe' aDd react..ance. caPad taace. how-to-r~d achematic diagr-ame. etc. Easily-built project, for lab. wort. permit

~ru::~~ti°r~~\.r,;~.io ~~~~~:,u~mUpllfi!!!~ ~~~;50~II~t:!:p,i~·lnII~~~: . ... 1 Oc

ALLIED'. RADIO- FORMULA AND DATA BOOK . Edited by Nelson M . Cooke, ChId Radio Eltctrldan. U. S. Navy. CoatalIUI CtIo8Cntial mathematical foc-muJu. table., miBCellao~u. data and standard!! commonly used In the- field of Radio and ElectroniCll. Indi!!pcn5able for all lItudeuta. teachers. radio t.ecbnidaaa and radio wart,-.Jnina cla.sge!l. Handy. poc:tct-eiu condel1M!d edition of 37-154 Handboo~ convenient ar-

~;~.;:;~ ~~l~~{, .rs.t~~~· .. . 1 Oc

MEISSNER RADIO TRAINING KITS Precblon·built receiver kits C'8p«iaIlY desiKned tor d~roolD U~ i n eveo a bel>inner can coostruct aod operate t1t~ kiu. Each kit i.:J a3 r .. dio training :iChoob. By lollowlIIg dia&rams and but..ructions furnished. carefully engineered a:. larget' .ta.odard production type tecciYCI3.

STUDENT MIDGET KITS

AC·DC KITS 83 .. 430. 2-Tu~ ..... ,t. As 83-420 above!. but

~\~T~T~.~. ~t •.•• ~~~~.~~~'.~ ~S4: 12' 83 .... 31. . 3-Tube Kit.. Ulr:e 83-421 above. but u~ l - i6 detector. 1-76 audio. and 1- 76

'~,!i~ .. ~.t.u~ .~ ~~ •• ... .• .. $4.70 ACCESSORIES FOR ABOVE

83-.25 .70-100 Meter Pllq:-io Coil.} E AC H 83-.26. JS. 70MetcrPluc·inCoil .• 41 : l::~~: U~~d.:e~~~I~.~~ ·.·. Sl.0~ ~~ Iro~hi:~ta~i.ti&~dpf~:'6~-6j:

S TUBE AC·DC SUPERHET KIT '·TUBE AC SUPERHET KIT F l • • C. This 9-tube 3-baod AC 1!lUperbet reoon:r ha§ be-eD dwgned to l!IIf!I'Ve the advanced

r::i:~d~~~~sfe~~ 8r~~~~' ~::V::~ etudent a tirst-hand knowlMge of pr~nt-day rtt'eivCnI. Diaaramll .and inatructiorul very nay to follow. I.arge: ala!lS-!!IC.ale alide--rule dial tUD~ the J bands: 185 to 550. 40 to 136, aDd 12.5 to 40 metcrs. Many other fcaturcs

~n:i~:r~r::j1~ub~;~U~~~~c!~~(} ~y~~ dynamic tlpeaker, variable lODe control. electric tuning eye. automatic volume control, built-In loog antenna. aDd push-pull audio out-

~~~. tk'fO ad~!! t~.T~n~!J: ~~S~lc~~ ~6Gj':;JJ1.GF~-;j~~ I~S~~~ I~~A!U needC'd parts and tube!!. Size:. I~YJ' L .• ~ D. 8 t.4' It , f' or 110-120 V" 5()..OQ cycle AC Oper"d.-

l:o;;4~t2."1.~ .... .......... $48.90 MEISSNER INSTRUCTION

MANUAL For beginners. ad\'aoceQ mudeDtll. and io.tructon. Contairu complete constructional data 00 Meissucr kitH. adapter units. elc. GivC8 operating irutructions and :oervidnl:

~~~ ~~I;Ct'~~~~!.~:~~~i~~!nil:~~~ menta and amateur equipment. Tcchni..::a1 ~tlOD iuclud~ useful data oa coil dMil:o. radio formula.1. de. Fully illustrated with ~ctorial :u:ad IIK"helllatic wirine diagrams. 168 pag ....

~i~lj!2·1~Wi' .. ~.~~· . ..... .. .... ..48c ALLIED RADIO CORPORATION. 833 W. JACKSON BLVD •• CHICAGO, ILL. 61

PHOTO-ELECTRIC CELL EQUIPMENT WORNER " FOTO-ELECTRIC" PRODUCTS

We ran supply \\'0"," "FOTO-ELECTRfC" uniu fOr todu~ial UlW'S I'w:h 3." automatJc sortin&:. KradlRi:. or countin.: fOt macbin~ry protection or control : for ht'at. llitbt or smoke cootrol. etc.

~~ ~:::I~!~~.o~o~:ri~~o¥O!~l~c/k~c!!'~:;~~n .=d~i~e:D U~i,:!P:'~~:a~f:~~ \Vorntt equipment on this pace jfl aIM 3\'ailable for otber voltage iDpUU. \Vrite UII for prinos.

ANTI . SABOTAGE E9UIPMENT .. \ hi.hly de~ndable and rD.tpmely flexible

r~: ~!::;:l~~ 1~~h~,,~:r P~I;~~.C" ,,~~: hou:M'. etc: . Con!&i8tlll of robot and light MUtee. illulOtratM at left with t)'~ of \~("athefl)roof ca..e u!ll!:'d on eaeh unit. Cases indude vi." (not illulltraW) to

f:d~" ~~n::cs:,~inu~.ra~~j!ct!tsn~w~~~ of Infra-ned (in\"IMible) faYS which. when

~t~'!ft~!t a~~Uyal:i~ t!:la~~~~u in :our::,'(" ~~~s .:ii~a~'!.'a~:e~~~.f 'E!:~:I~ .. ~~~;I:::::a3!~~ mod~l:I arc a'\'ailable with ran&~s :r 250 flo and 500 ft . rot'tlpectiYch· . \\'he", .Kt"~ater C'O\'rTa~ i!l r~uircd. ~nd d~ta.iled lnlormation and sk.etchMi !lhowin~ ar~a.o to be protKtedtand qUOlauon!!

i~i~ ~r:~r~~ll i~8P~~~.~C~:n~~~~~tl~:.n~nndeclre:r!~:u{~~~~a,~:~C~.r uir:e;/ :=:~~~~ ;:ht~· t~ .. V~;.I~~~"~;n::::t 11~5b=l;: tAr~~~c:~c.~·o:~~t.c(ll:ithUtr:.'bcA.~n-; whlCh accom-7 7 -007 . Mod.' 22 50. H.u 2S0 foot rang<': . NET ......... , .. , .... 124.95 ~~T~~~: , ~.~ ~.~ .2.5.0.0 . . ~~~~~~ .~-t.~,~~~~~~~~~: ~,t , ~~ .~~~(':. ~ .~~ .f~: S 194.77 :p~U~~!~:tB.:~~~~I~aNyO~~. \~r~~·ii!.i.!i;~/~~~~I~~>~~': ror ~~~e,m ':Qn.1:~~t.~VR~r.

"FOTO·ELECTRIC" E9UIPMENT FOR GENERAL APPLICATIONS

77-009. Mo del 2101 Rec elwer . C on"il'lh 01 I Ii~ht lM!ruidn· cell. a mplifier. ",laY a nd ~n · IIoili vity conlrol. Mountffl In 19--aauge ,;: raY crackl(': tllc."'l"l (:al9f:. 7" :.: 6'.4· ... IA ". E q uippr-d with wall btack (': f..,8 for e3JfY mountin,;: . For U!lle

I~[T . ~~~ , ~~I.t~: ,~ ~~.c~~ • . ~~:. 540.42

CONVEYOR COUNTER ASSEMBLY A portable photo cell IIY.tem which can b!-- at tachl"d to a IS Yi. or 17" Standard or LamMOn conve>'or and u.cd to actuate a count<"f" . Height can ~ adju!lted to count tall or short obj(':Ctl'l. Comu:lU of four ~if!'«'!I: an extension

~~dtiel~I.I·a:dt:n,;:g:n~:~R tpl~~r:: ~~:rc'hli~h~ t1-!rce abo'l.' (': piece. arc f jl!lt enefl and whiCh. in turn. clamp!'! to conveyor . MounlinR plate \\;11 al!OO aC<'Ommotiah" .... I«trical counter. For

W.O"i'i:. ~o"l:1'1Qii\C N[f .. $55.12 77 - 0 1 2 . Mode l 2002. Same a!'! above but for permanent mountifll.:. NE T . .. . S S S . 1 2

PHOTO.CELL MIRROR

v .... --__ =~ A .~ie_atiftc::ally

~:~i';,~ '1~r;;:: f~::; back and forth ... ('rOdiS a room , Ad;u5tabl(': lor maximum concen· tration , With mounting bracl.:et . 8" x .... :It

2Y,". Shipping wi .• 3YJ lb8, 77 :-001 . NET . ...

PHOTO· CELL COUNTER

The "rhoto-Cell Counter" i ll a two· unit !lYStem c."OlUIi"t i u/o: of model8 2801 rect'iver and 2802 Ji ,;:ht ~urcr. It hal' a multitude of ft)mmet'cial application. : can be Uflol:"ft to count traffic. to count anY type 01 product traYt!lin~ alon~ a

dtn:re::t ~I~. fo:oro:.di:: ~~h~~~ t~rt!l~r:~

turbidity. tran .. J)arenc-y. liquid le\'.I". tem(M"ra· tu~. tl3ret)" de\'iCft on punch pr ___ • CODtroifl nnd cutten! on prinunlZ prf"lt.'Iot"!-l. etc . \\'ill operate n:-lay up to 500 umc, pcr miDule.

77 - 0 1 0 . M o de l 2102 Light S ou r ce. For UIK' ",ith ~Iodel 2801 r-eot'iver at left or any

:~~ ~mi~r :!4-:!~t~~ ~~rb. &J;!~r:= co~ntri\ted ~am. Gray cackle nni:!lh .ter!

6t~y~;~, 7~ l-:,:-'~'. : .o.r . ~~~ .\:~It~ .. SS.S2

SCANNER.SORTER.LIGHT CONTROLLER

DfOSiI-:nt"d for countina. Mrtinr.:, lW'anning. Ii,;:ht control. door ofX'Din.:. _fety devkea. e-tc , Model 2104. the- ampl;l\t!'r . conlli"llt'l of a Ii,;:ht l'Il'n!uti~ ~J1. an a mplilier , rela>' , built into ray ttack.le--finil'lh metal COl~. 7·.6%" :It " \4".

;o;_~':3~~':'e~I~~:p~~ .S44.1 0 7 7- 0 14. Mode l 22 0 • . Extension Photo' cd!.ln metal ca~ . \\'ith pil~ mounl- . S6.23

~~~~I~me~~:ae! . ?\~i~~'Pi~~~~~~nsJ:i~~

STANDARD PHOTO CELL

A hiKhly IW'nllith,<, i:1oW· fil1t:'d photo ~II tub<- which can ~ u!M!'d 'or almo llt all electric t!y(': a pplh.:ationl'. Accurat.-Iy d(,:5ignrd anti ('OD5tNcted to re-.aL't ia"tantly to proJl(':'r value of lis:: h t t n teluity or color . Filii any 4-prone lOCket . M eiuurt'S jJ..i." hi,;:h OVf!T'

~\:_~O~P~'ET':: .8 .0%.- • $2.20

KNIGHT AC·DC PHOTO.CELL . AND RELAY KIT

~~P~~i'd~g~~~ ~~~:~I \~Itl~t~~tt~m Sfol:4~n~~ ~nla"~~iu,:~ ~bilitlt!'" of clktronic control \\hereby a variatiOD in lis:ht Inten1tit)r can br ur(t to operate burglar alarm •. for controllIna IIghh and brllll.

d~~'!.-:i~f Ir:hrin;~a:t~ ~:::~~~:~n~!~t:~:I~~Lii;.a~~~ ati !~c~o~~ induc1h'(': at 115 V. AC . Cha-.!!'! ~hield8 photo~1I from unwanted llg-ht. ..::h 1nclurtf''' all p;ut~. drilled cfla,,1ti,.. phot~lI. SPOT rel;n'. tube. disgTam and in!llTUctionll , Size: 5:.:".2". For 11.5 V. AC. DC. Wt ..

~l!ri o . NET . ........... .. . $6.2 5 113- 715. ECONOMY LI G HT S OURCE KI T . A C'Omplete. low~t k.it for buildinJ: a ctt!'prnd· able light :tOurcr' . Includ~ IIIW'l-'ial SO-wa U bilib. Throw!! <i concentrated Ix-am of lis::ht 50 f~t .

~Yu:: f~~di 1~~~~:: ACe~~l OC~St:p~,!lt~.~Y~le:t.le,!;[ T~~~ : ".~.". ~. ~~~ ~ .~ .~~,".-S2. 9 5

EBY P.E. EQUIPMENT PHOTO CELL

Exce1Jcct-'or UM: In an t y Pf!'!l of phOlO·drctrlc citt'u' .... 1% dia.m... v. . hieh , Fits four pron.: .ocl.;el . Shock anet moi .. ture proof . 'h Ib, 77 - 030. NET

. SENSITIVE RELAYS DNicned lor d i~, or for full or half-wave rectifiC'l't c::unent circuitll. wht-r~ ol')et3tinl: powc.>r is emall.ld(· ... 1 lor photo-

~Ipn~d:~i~.~e~~~ C:~;:. at'"" on a" 10 .... · ... 1 25 mi lli , watts of powt' r . Stf!'rl1n ,~ "ilv«

.., $2.65

A':::~t ?r;V~ ·b~.mlh"p:.t~~.~ ~·lb~ ·C , or 1.5

77 -050 . 1000 ohm . NET .. S5.00 77 -05 1 . 2500 ohm . NE T . 5 . 14 77 -0S~ . 5 00 0 o hm . N E T 5_29 7 7 -083 . 10000 ohm . NET . 5.59

ELECTRIC EYE IN THEORY AND PRACTICE

~b~h::;t;'b:v~o~i!t":!~t! on photo-c:-ell control theory and practice baM'll on years of uper{rnce. DHcrlb<-'!lln detaJl the unci"lyins: princil)l("!t of photo cells. Indil'l(M"n""ble fOT the dUdrnt. CO\'t!'flI thf" ba.uc:: I.::nowl~~ which ~n',"" a .. a founda

."......,.~

tion for und"r ~tandina the incrrasi ngly Important fit'l,j of electronic:: C"Ontrol by means of the

~h;~;;~~~ 2:~~~:.. .. ... . 44c

BRADLEY LUXTRON PHOTO· ELECTRIC CELL

Th~ P holo-Elec:tric Ce_II,. are 6ndinr.: .... -ide- application In the mra}(ureme-nt and control of lidlt and in the automatic contrOl of many indufltnal PfO("~'II("!II . They convrrt li.hl ent!' raY into electric-al r-nergy without audliary vol toUt" LIIOUU."'C'II , Suffidrnt cllrttonl ill de\'eloPl"'d for direct oprralion of iftMtrumeDh and IW'n!U · tiv(': ~lay8-no .;llDplifiet'!I arr n~ry. Dur to .~ial de\'elopmenl!l. thew cell:t ha\'~ e-Jlt~m~IY low ... arialionM in t!'1K'trical charactl!'ri!!ti ('11 with c han .. ,," in t('m,.pt'rature. Plug Into a !uandarfl 4 pron, tub!-.x-krl. Siae. 2l--W" • 2~" x 14 .. , ShippinJ:;

;e;~';:.~.~'ET . 57.25

PHOTOELECTRIC

CONTROL BOOK An authorita.tlv~. up-to-date

=\~~ !'ot:~!. .cali~~ ~~~~ :i~l~s~h,::at~r:!~~~ ~~~~:: r.,. ..... ~l!.l1""11 tiona ... "Ii ho ..... to Mlv(': com· L=:l!!!!!!!!C:;J r:'~ym~~~t:,o~A~;:::'ro. 37- 760. NET . ........ .

ICA CODE PRACTICE SET

:!~~n :::ro Ai~~ nals. tele'lrOl.ph code and blink·

~ralri~~;\·rl'\; thi~ ~l. p~.

:'~f;~~nv1~~'M'1Wf'ftl two stationA, CompriPJeS hi/o:h.frltquPncy buut·r. blinkf"r li'lht. k.ey. and telt"R"aph !!IOuDdt!'r. JDstruellon:t on !II'lnal bo •• Double unit conl$j"tl of two complett!' in!lUU' mentl'l and 50 feet of \\·it'f! . T\\'O "tanctard nasi,. light batt~1'"1' u~ \\;tll fOach &el. Le,.g hatt~.

;r~~~~O~·~~":I~'J.:1t."::[T .. S3.32 76-1 5 1. Sin~lt!' Unit. 1...-eMc .... ;re and bauif'riH. Wt .• t~ Itnt. EACH ._. Sl •. 62

62 EVE R Y T H I N GIN R A D lOA N DEL E C T RON I C S

ATTACHMENTS HEADPHONES ~oUes IUNDES SU.ERJOR PHONES

A blEh Quality, rug-

~eb1~-b~~t ~~se! f •• otit.e 'or yean. Outdde termlaal type. with metalcazte!l aad bakelite caps. Diaphragm dlamctcr illl 2",' , Has double coil • • t .... o iD each receiver; adju.table

~::~t!~~el~ t1r~~ cot.t.on<overed cord .

teaUyit)' an Y4- .. uar~"'\=~(.-e~K~;oo ~b:,,~.~T~:~:. ~V~ . '.~: ... . Sl.87

IRAN DES "ADMIRAL" PHONES Slmllar to tb!..r.bo~ above. but wlthtrrmlaab

~-:~:~~ . m~~c.&-tUd~k::r U:l:. ;:~";~~b:':~o':O~~t;:· N[T .. 11.97 15 ... 1.3 •• 1000 Ohm • . NET .... . S2.14 &.·137. 50" Oh ..... NET . 2 . 57

C ... PS ... ND DI ... PH .... GMS •• ·:13 • . C .... [ACH .•........... I Bc .... :1.:19 . Dlaphnl"'., (ACH . "" Sc

CANNONBAll MASTER PHONES AD Improv!NI hiahresl.laaer headset that faithfully reproducel every type of radio broadcast.

~.g~ ~d~I~:I:[M~:I~ laUOCU are required . C.~ are metal with bakelite C8p.3 ~d IMid e teraUDW to preYeDt shock. HOI!! • hlrdy tn a,net of

~t~:e~ ett!a~'ba~d ci~ ralliJy adju.tiNI by .pdq pressure cHj)tI. The-« ilradphoQ(' •.

~~g:~,/~wo~r~~ce~~ • . ~:~ f!~ rm~i~~ headphoDe .YlIlem!l 8ucb u arc ueed in bo. pital • • echoob. prif'ODli. sanit.ati1UD&. etc. Alf'O

R~!".~tdfo;o~ ~~-:!;~~~frt::,:Ji:J~ !~;~~&~t2;:;:o~t;::· ;:i:':. ~~.". '1.93 &.·:1.26. 5000 oh mlll . N£T ....... .. S2.43 5.·.27 . Replace-ment bakeHte cap fo~ above beadset. . NET EACH . ....... . .. IBe •• · :1.28. Replacement dlaphraa:m for abo vcbead!lf!t8. NET EACH . ....... .... 5c

RUBBER 'PHONE CUSHIONS F l n~.t qu",l ity ca l' C'" u ll h innll. Utre.I b y I~adlna: airlines. I '~ vick Dtaaimum comfon . F it all type: pholM:"'" Shj)g . \ \ · t •• 12 oz..

~:R:l.p2A~·" 6Sc 10 PAIHS . ... 511.BIi

llecallM of the many crftIcaf materials ~ In their consfNttion. heodpho.,.. of all ~ .. available only an orden with sultabl. priority toting from in. d",.tr'.s. schools. labonrtor ..... and othen ....... 0 .. directly engaged In .... W. efton.

AMERICAN BEll INSTITUTIONAL HEADPHONES l!.IpeclaJly deJla;nM

~~oit!J~~d~U:: In.tltutlob!!l w b ere lool·oroof.lllbt· weltht headphoD~ are NenJUal. Aa.o 'deal for uet' wltb cf"Yft.&l eelS. battery ratflN and low-coet hearinl aida. Evt'f'Y feature required for ttutitutlo.a.al u.e hu beeD h:,cofl)Orated:

mCUI ('ase!I and durable bakelite capa which an: c-aslly cleaned; Inside l.crmlDal CODDcct.iOD8. to prevent ebocu and tamperln&,; 411.1:' brajded

~~CoT,~~~ r:h~"a~. ~~nl:"Ja~::~lS ~~ dye', Here's eztra valu~ In durahilJty. Pft'".

~&'~:'n~~~'; a:1~~~:tc=~ characte'rt.tlca of thetMe' hudPhoDC1il mal.":c them p;u-tku1arly suited to p:rwol'al pUJ""pOflle UM' in

~ ~;;~~i~~c~~el=~rh~d~~= always lkJe8iblc . Shlpplna wel&'bt . t lb.

~:T~.~.~· .. 2~ ~h.~~ .. . ..... .. .. 51 .25 5.· .. 0 ... 3000 obma. NET .. ..... .. S 1 .45

:b~~~C:»':iE~kt~~ .~i.~~~~g.~ .f~~ .~~~ 59 .. :1.0 •• Bak.ellte cape, NET EACH ... t 2c

ACME DElUXE PHONES SCDItUlvc and roactlcaJ 'phone3

UO~.~UK~~a~:e! rcather . " Eacb unit ~~illh!l 1~ than 1 y, ouneal, lOlal weigbt is only 6 ouncca. Re'commendcd e s pecially for

~I~::.~r~d'!f-tipl~ phOue ioat.allatiOIl& c~;ara!:f ~tl:); molflcd of l>akdlte with Jiaht- tC1l!l ion Aes.ibl~ hcadhand . Cord I!I 4 ~ ft.; braid-covered. Phoge-

~~~ro7~~ lio::~.:!: · ~if:' ... . s 1.45 ACME SINGLE HEADSETS

A lIaht'A'~iKht alD&l~ unit he'&dpboDe. with

~.~~a.;t;ul~~~a~bo~£T ~ ~.r; : .... 89 c

C ... 'S ... ND DI ... PHR ... GMS

~!e1:bo~:I~TIet~~;r~m~~~r A~~ 59·07&. ~lacemnIt CaDII. EACH . .. 26c

BRUSH CRYSTAL HEADPHONES

SINGLE PHONE TYPE A

TRIMM FEATHERWEIGHTS '

;~~ ~yPh4on=: Have for~ m~Det3

g'.k~I'~C ~~:r.~\~!:'d caPt'. aad .diu.table spriDlbme'tal head·

r:.c:., ~h:e'~~r~';': weak l'Iia-naJs . 6 fL moillt ure-prool conl. Shipping wei&bt..I Ib.

58·000.4000 obm •• ·001. Z.(.OCK) obm NET EACH .. ..

:::~~~~~~r~ ~~~'t :::iK~

TRIMM "DE'ENDAIlE" PHONE$

TRIMM "PROFESSIONAlS'" A hlah quality. medium p riC'Cd Palr o' standard IDalnetic·type- head . Phone. for ~ pur Po.e duty. Bak.ellte

~n:,,:!~af.;!"J!· : : ShlpplDa: wch:ht. t lb . 59·020.3000 Ohm •. 59·02:1..4000 Ohm •.

~:J; .... :::S2.73

TRIMM ARMY.NAVY TYPE HEADPHONES

~~ A":!;tJ:!d :tar:; I'I peclflcatlonll . 1m·

~ruean:'eJr ~o: h~~~ :,u~r.t~~::!ofagcirf phoGe tip terminal!! . Inside terminals. \Vilh I~lh" hf!"adbaDd . 8i "Iar maaoetJl. 2 Jb~ ,

N'i."·""· .. S 1 0.95 S9~0.t.. Re-placeme'Gt Cap for above and for Wetrten1 Eleane headpboo~. £ACH . . 53<: .9-042. Eztra DiaObraamafor above .. t 2c

HEADPHONE CORDS Copper tJnaoel loner coDdurtol' covered with c)oacly-woven cottoD bnJd. ShP8. wt.. J ~

SINGLE CO.DS

1~~S":DO!'th!:.o;~~~!r. ~~ :t!~i::~~~~ ~:T2~:c:"~.t .~::.'~~.~ ~~.a: 14c

11 '01' SI.l'. too '01' 5U.lI.

DOUBLE CO.DS 159 - 205. Spade-Iu&~ Ob ODe eDd ; t ip8 on otber. 5 foot cord . For uee with pbon~.

~tT2~:C~~~.~~ .~~~~~.!!I: ~. f.~.t .~.~ :27c 10 'or 52.41 . 100 lor 523..25.

5_·220. Small apade lu~ Oft one end: till' ~~!~Ct'bl'~o.t ~;-10~~ =~r;~~' Cl~ly ~T . ............. ... . .... 4~

CANNON RUBBER CORDS DUr.:lble rubbft' double hf':ld~ cord. 6 feft Ion" , 113.14 ti ll!' on ODf! (>Dfl: sJXi< le-h.llls on olh.·I' .

~t~_g2n: ~~\ . 95c ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL. 63

The code transmitting and ~i\'inl equipment listed on th("sc facing pages is, without doubt, the finest apparatus of this kind a\'ailable today.

lon& 'P("riods of hard and constant tt9C, have ~n incorporated. These are the result not only of McElroy's JO Years e~rience in the radio.-t.ele· graph field. hut also the devt"lopment of specifica· tions submittC"'d o\~ a prriod of }"ran b)' U.s. ,\nn}' and Nav}' off~rs and men ,,'110 have adopt("d

* ::~d~i:ia~~t:!~~Yf:~~~CC:'\-~It. M~ Elroy, " 'orld-famous d(".!Iignrr and buildrr of radio.telegraph ('(J,uipment. Many outstanding featurt's, insuring accurate. dependable performance over ~_~Cr~~rof~tr.S:('A~~~:. ~~~~:~~rC~:~U:~~

IC!Y£R

MODEL G-913-A RECORDER WITH TAPE PULLER

G-813-A ELECTRONIC KEYER - TRAINING SCHOOL UNIT

MODERATE SPEED TYPE, IDEAL FOR INDIVIDUAL OR GROUP TRAINING Th~ Model G-913-A moderate .~ recorder i. dW¥l1ed primarily to r«ord code .u&nal~ in d~ar.

~!ont! ~:d: "~:'h ;(ey l~~buIET~~ro~~h~d~~~~

Nred practice ta~. lillted at the bottom 01 the pace . The ftwlQd nluhaGi.m. :00 often the

dV:~bjyi~~t~~t!~~IOft~'!!~~~~1 h311" ~h !'Itecl-cut £l"ar. approJ[im:ltely 1,4' thi~. The .,,' fIItecl !lhaft!'l ride on oiHte bearingll. The buill"'n 101lt' !WlUrctl i. eleclron-key~. I:i"'ill,j{ a !'Iilmal that iM ah!'l()lutelY fr~ fTOm annoyin£ chirl~ or kry dirk". Doe-s not gt'nerate ton~ C'Ondantly OIl thr t,..-."inninlit: of operatioQ or dUring adiuMtmeftt of the lape. put of a communicatlon!l ft'C<eI\'er for off-t he·air

rt1 . ."'Ordin&!t. Will operate at any dC'tared Mpc"td from 10 to 40 word! per minute. (For rC"<"Ot'ding at higher !lpeedll. u~ Model SR -900 RC'COIdl:'r. lillted on pa,.e 6S.) SuP"lied complrte \\·jth

AN IDEAL KEYER FOR GROUP INSTRUCTION

~i3.a~~81tl.rAdket::;e a~~~~ri~~e .. s furaimrd

RECORDED SIGNALS CAN BE REPRODUCED

Tape recordln&s made on the Modt'l G-913--.... cOla be audibly reproduced at Ilower. fa!'!tN. or rC'\."Orded .~d~ by runDing the recorded tape

!:~u:~ A:~y e~djo ~~~t:;llfrn:g.:::-iG"8tJ~~

The tone-oM'illatot t~rminatel into two output lo;&d!. one a hid, im~au~ of 2500 ohm. aad the oth~r a low im~an<:'t: of 15 ohm!l. A hndphone jack ill provtde-d for monitoring . Tta~ outPut powc-r b fluftident for !UmultaneOUll- opt"ration of from one- to three hundred pairll of headphones. The tape holdt'r will acC'Ommodate ... andar-d 16 mm_. 4OO·foot motion pic ture reel!!. Th~ tape: is drawn bt--t wren the ettitf'T lamp ilRll the photo cell and on to a , .. 'ltc-up reel by tbe tape puller. A "oo.lt. roll

M cElroy GI5AA -Practice tapr. if rUQ at the tfX'Orded IIpred of 20 w ,p.m .• \\'111 run for approl:imately oar hour , Will handle ,peed. from 10 to 40 w.p.m. AdJustmC'f1t knob8 for photo-

;:: ~3.It~~~1e::~lriatlh&n,'~:~l :-:-7yf7G1d~r 111~iG r tu~. T7 rxciter lamp. 930 photo•. .-('11 and variable !'I~ tallt! puller and I reel. For 110 ,,-olts AC or DC,

;V~-~i'::: NET . ... ....... S 150.oo

(I",ted at tile "I:ht). This Io:IVf'8 the .tudent dn opportunity to hear his own !lendinJt or to listm to oft-the-air re-cordin,1I and !lpe-cioal ta~ rrcordinc~ Qladt' by the io!;tructor or other tltudrnts. Th~ r~corded tape can alliO,. be ull't"d a~ a "'illU31 indu:atlon of !ttudent progrellS. Thill mrthod. althou..:h recrntly adopted by code train'ne .:::hool., h3l' alrf!ady beea pronounced alf ex treillely valuable i.1l improvinK tecb.lli.que.

MODEL TP-890-742 PROFESSIONAL TAPE PULLER

HOUSED IN PORTABLE CARRYING CASE

Til,. Mod,.1 TP·890-7<&2 McElroy Tape rulln- is a truly J1rufr!l~ional unit . Its Inany operatintl ' .. 'aturt-os adapt it equally well to comm~rdal and trainlnc !'Chool U!tl<e. The hu .. ky AC-()C motor U, housed in a hea,,'y dir<aAt ca~. The commutator and bruahe!l are over-!'Iized; the heavy die--ca~t fly\\h~1 ilf dynamically halanred; and th~ rotor i!'l mounted on oilile ix-arina:!'I. I::'Sprd311y ..dr!lilltnit'd for U!W'!' "ilh SR-900 Sil{Tlal Ret.'Ordn(pag~ 65) . Takrup rrd can be manually dlsrnKa2'ed for r'e\\'lnding or for rwrmiltinK con. tinuoUII operation of motor , .. hi Ie tape ill ~topped_

=~~c:r::~in:I~irk!1 i~~:r'!.i.ct~~~ffO!e~~ ~:~(Jsii~laintainffi, For 110 V: hl'. AC-DC,

Recorder, tape- pullcr 3nd built-In power supply complete with tubes in a b~vy ' ,\,ood C'aJ'T)"Ing ca..e, n;th lock-on toP. and mt'tal c."an-yiml: handle. BiDCUna: posts for key or bUIi connection!!; and for OUIPUt connections from eQn1munlcation .. re«iva- art' convt'oiently Ioc:-"ted on the rhal'-d!l (ront. Blan\;: t-apc:s (DOt included) arc hstti'l in the lower right·band corner 01 thi!'! page. Ottol". Hi..:ains India or equivalent opaque inlr.;. For 110 volt AC or DC operatioQ,

~ii~d~ ci~NET .. ,$150.00 SEE BelOW FO_ TAPE liSTING 7"- 031 . NE T . . ...... .. 90.00

McELROY CODE APPARATUS AC.CESSORIES HAND REWIND Fig. A

E.tremely durabJr. Ih.'l h~vy dir-

~,~:e~:u~n"£;thl~~<u~,t~!~:riP~~~:~ mountc-d on oilit«- ~arina;:!I . With 16

76:'o~:f~t[TeeI- . . $9 .00 7&· 130, Extra 400 ft. 16 mm. rrt'1. NET. 35 c

TELEGRAPH BLUE INK Fig. B. Ink-concrntrale C'afk'lule. Makes I

lu~~~:f;~ II~R~t ~~~~i,n.~:. S 3.00 TAPE STAND Fig. C.

M od.' T S·'1 5. Hall heoavy dil!<alOt ballt= and adju.'ltable recl holder, ) lold~ 400 foot roll 01 tape. Designed for UfIC ,.nth Sisnal Rec.-orden. ShpK.

7~'.:"°21~~ . NET .•. , _. 530.00

PRACTICE TAPES Mcfo:lroy GI5AA Code Proa('1icr Tapn are rC"pJ'odun'd from U.S. Atmy ma!'ltrr roillt and are ideal for t,..uniu/.:: ",-booll' of «'''.r)' type. Code "....-11 I" Intf'rn3-donal MorM'. and r-e<'Orfiinl.; ill """ily inked broad liQ~ .'ltlrle for U~ with thf' G-9Il-A Graphic Io::«-yil'llt Unit. above. or any photo-crll ke)'ing unit

:~~at!;.l~ col~~~!1 :3·15 t:&tft.~~l; which an- con"eni~ntly hOI'~ in a Mtronl.; !'Ilolte'fl-'WOOd can-ylOI{ ("alOe' with Ioc-k-on ('On"r. Rach fft'l !llot i~ num-

~G:'~ l\i~ · .iU'~· .. $45.00 BLANK TAPES

Radio. Tekaraph R«Of'dn-SIiPfil foran)' "-'Ommcrcial rt'C'Ordc-r, Each roll. ~. wtdr . 400 f~t lana. w,1I hold clOM' to ten thoulland word •. Packed 25

;~:~;;~~~!~. ':'~n~~~~ .. S7 .50 64 MAKE ALLIED YOUR RADIO SUPPLY HEADQUARTERS

a.l~ Puhlic and Prh-ate Schools and Commncial Radio and Te-leRt:lph Comp:ani~ all o~r the- world are (oda)" using McElroy equipmt'nt in the-ir e-veryday activitit"s. In addition to tll("lr many ope-rational f~d.turcs McElroy tr"msmiuinK and receiving (>(luilml~lIt is e~ally dtosilmro for fa .. t. easy lIIailltt!'nallct" and repair. l'rt!cboton l~"lJf' unit &:On. slruct.ion )Jermits the instant rel")\attlllC'lIt uj indi-

vidual part.~ or complete unit-a!t.. ... mbly compone-nts. McElroy Code Training Equipment. like all other apparatus using critical materials in tht'ir con-

~~ru~~onFi:I~i:!la~~r~~.y b"o~;:~~I~~9t a~~t'~~~ * Industry. and Traini'ng Schools. authorized under Priority Rt'J.!ulations to purchase these units. Our tecllnical staff ",;11 gladly answer any Questions.

THE NEWEST PERFORATED-SLIP CODE INSTRUMENT The MrElroy XTR ....... 2 T ran!'!mitter for Perforated Slip consilll!C of a variablr sprec:i motor-driven automatic kr}'ing h~d and a capacity· polarizt"d doubh··act.ing rela,.· '0\01th built~ln power supply. U .. "rr is the mo!!.L "pel"tacular advance in de.ugn. mechanicallY and elrctrkallY. in any inlltrument e,'('r dC8ixne-d for kC"yinx any wireless telegTaph communka tions circuit or audio Q9C'illalDr ... ·t up for training ~hool u!te.

~kle{~:C~,~i!l; ~PTrl~~~~n ;;t~~~~~ !Il~\fJ:I~I~a~~p~n !U"P~~':! tapes. cut from your masters. at $ ... 50 peT 400 foot rol l.

IDEAL FOR CODE TtAINING AND COMMERCE

ih~r a~di~~:~1~~ ~f~~c:l.~°b.t!:-:l8Y"~.PT:fk~I~~:t~~i:~ =~~;~nJhlra~~~t:~ ar:~tis~)~b.~~ :an:trllud:,l~n~~b~~n= accuratrly at anY "~rom 4 t o OYrl' JoO '\lord!'! pe-r minutr. This is a conM"rvath-e f"tItimate'. ThJ"elf! output t""minal!! arr pro\o;drd from t.h~ ",laY dreuit. Thr ~ntpr terminal connrcb LO thr movin..: arm. and tile out,.,. terminals to the'contact meDIOOII. Thl!l mal.:_ ~blr thr I.;.eyinw; of olK"illatorl'l. tape- recordeu. rtc .•. whiC"h an rithn normally open or DOrmaJly clo.~ typr!t. thu!! pTovidin& maximum 8w!Jility.

MASTER OSCILLOTONE MODEL MS-700

Thr Model MS-100 Mallteor n.cillotone- pro\"idl'1l an audio tODr lIOurce for operation eftht""r aM a practice OfICilla· tor for an indiddual atude'f1t or a!! a

:a':::a~::~ fs~~~~~~~ d:~~rU~:' The' clt"aJ" audio aianal prooul."rd is manually adJu.to.od 018 to pitch and amplitudl'" by continUOU!lllo' \'arlablr

~:If':'ol~ ~;P~::!'t~Y r~ t~ll~:5&; c=ycles. huulatrd teorminal. provided for output and krlo'lni: drrult con· nections. Work!'! into I S ohm load. or higher. For low voltaRfO krying, meaus are providrd feM" t."OIlfta·ting

k"loing unhoM in the Output drroit. Thr 4" Pft'manir IIIprakt"r u.-d for monitoring pu~ ran be- "ulrno.'t"CI whftl dPfdrt"d. The Ma!!tl"'rO!cilIUlont"'. l>tocau!W!' of it~ l"'2trt'mrly low pri~ and many out!ltandinJ.: ofX"rational featurf":'. mrrt" functional need. and budgl·t lK'hrdulM for training and rommrrclal UM .. All metal part" and terminal!' are complrtello' i~latrd from tht" 110 V. line. Cabinet j" molded bakelite , Jla.ot line cord and plUK and on.()ff lI .... itch . Furnlllhrd comple'tr whh

~u~·o~o;.,, ~oEi ~.~or, ~~ .~~r.a~~~'., :~t: :~ , I.~II:.,. $11.85

CODE TRAINING AIDS SL-990 SIGNAL LEVELLER

76 -033. An automatic audio vol· ume control. al~ blliCkaround noia;c eliminator. ConD«1.~ to output of t-ommunicatioD!!i re'C'e'h .. er for 11_ when makinK off·the-air codr recordill~lI.

lYh".'b: .. .. .... .... 590.00 SR-900 SIGNAL RECORDER

76 - 0 34. Dl."Signl'"d (or ia.k1ed. reo ~r~~~tl~!.~ra~g:al!l r:o~p k%. ~ word!l per minute. ~ .... ith TP-890-742 TaJ)(! Puller. Completl'" 'o\oith tube.

~hJO."'.': .. .... . 5 195.00 Sfond (or ne"\\' McElroy Code Equipml"'ul C'Otaluc, FREE .

Thr only accessory·requiftd to makr the XTR-<l42 a completr opt'ratinK unit is a re\\ind tape bolder. For thill WI'" recommrnd thr hand rr\\;nd Ii,tt.-d in the lower left-hand corne'!' of p::lge-64. In operation thrtape i.1I automaticallY pullrd through thr kelo·inK·head blo' a ,,,,"If-COntainfod sprock.rt·f~. Thr uso.-d tape can be fed iato a b:ukl"l or oth« con~niC'nt container and lat("r lIpoole-d on the rewind. In thill manner no u nd ue dr3.C i. ever placed. on the perforations. thus prt"\'eonting damaaeo aod

:Om!:~11~n~ !!~ ~~~~e' o~ a~~~i~o \~~chan ~~~~~~nu1a~lI of

VARIABLE SPEED ACCURATELY CONTROLLED EvetY worthwhile fl""3.ture of reliability and ru&Ke-d[J~ hal' bfoor-n incorporatro in the' XTR-442 which makr it the idt"al transmlt~r for U!'le in code training !K"hoolll and by commercial agencies a.q wrll all thr vital communi .... ation" circuil", of our K'Q\'ernmeot !W'ryi(,l'"II. Each oprr.ltina unit hal' been madr l'"a!lillo' rrmovablr for PaSy !lC'rvic:ina. Ship~d com· plrtr witll line cord and plug. Convrniratly mounte-d on' ht"a,·Y wood ba,,,,, 'o\oith woodrn ("OVe'!' and carrying handlr. For $37S 00 110 volt AC·De oprration. WI.. 30 Ibll . 7& - 032 . NE T .. .,.... . . .... e DupUc. t e t a p e. Crom your ma~trr6. 400 ft. roll. N ET . ..•. . . ,$4.50

THE FAMOUS 200 HAND "STREAM KEY"

A pror~.uonal tH>eo !l-tr~mlinrd handkry for codr training or com· mercial U!IIe. Main lever ill per· f«tly balanced and fully ad;u",· ablr for trruUon. contaC"l lIpaC;;ng. and sidr-play. Sih'er conta("(~ an'

;:;;~.iaC!~:uli~n:I~~r~ ~~~t~hi! r;o~~'iri~~~ti~rrc~i~1II L~~~~ 1I1"3\'y metal ba~·. blark wrinkl .. finillht"d . Moldrd pla!ltir knob of t<tandard dt'!l-ign for rftortle~'I kelo" in!!:. A truly deluxr kry wi th a ""frel" thal ma!.; .. "" Kood code tranfllmi!l...qon "a.'4y for any oJX>ra·

!7~ _~~~b'N ET .. . .. S2.25 76 - 0 2 0 . Model ] 00 . Likr Modpi 200 abo\",. t"l('-"Ppt fini"hed in polillhl-d blll~tingl'" chrome. Wt.. I~ Ib!l. N ET , .. $ 3. 45

MODEL CP-500 "SPEED KEY "

A truly profr'"!<. .. ional bua or sprord-1.("10' dl."':4i!!:o("(j to ,""Ouform with U,S. Navy IIprcificatioDIi. One of che finl"'llt ~mi,automatic keys made for IImooth, e-ffortle~ krlo'ing. 11l'"a\'y Par1.eriLed callt bast", gr("y CTa("klr finil'lh. Enure suprrlItructurrili finisht"d to match ba!lf".

~11~'d~erpf:'J~ i~o~ri:~J ~~i;:; paddles. Circuit dosing !I \vltrh. Sih-er contact point!! arr ' •• ~ in dia, RiKhl and left arm tension !Opring!! are tully ad;u!'Itablr. Size. ;\14" x 6Y." x 3VC... Modrrately

r~~ ':dth!=:~~~f ~~!lhpo:r~: ductron. the Model cp-sOcf ill tlure to ph'a~ r\'rn the mOllt a-itilOll ofX"rator. Shpg. wt,. 6 Ibs .

~:T018 - Sll.85 ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD_. CHICAGO. ILL_ 6S

MODIL 31G-FIG. A. Skeletop frame type; black wrinkle fioiah bOlM'; othft' paru llJd!:el-pla&A!d;

~: t~i!;'Ie:n c~~~!;. ~CUl~:,d~)~I\:f~! 7~~'C: 5~~tMHI:T .... .. , .. S 1.47 78·0 5 8 . JIO with c1rcuit clofln'. NET., ., ... . ...... " .. , ... SI. 76

MODIL 301-F1G. II. Sturdy nu.DdnnJ k~ with molded bur-lite baM!. Metal paru Dlehlplatrd; pllltaU conoectloo to arm; 'II. ~I.~~ ";7t_ttC;:i:::~': ,I, ~~' . . ~ 1 .26

MODIL 32G-F1G. D. PrO'~ioDal t'Jl)e' key. \!.I·loch coin silver COQuet •. BIOlC1r. bn~. All olh" ~h altroACtlft.ly chrome plated.

7if~o;ii·: 2~'rT .. ",. S2.06 BUZZIER. Fit. C. CoDlitant Ire-'J"Uftlcr.' Ope-rat.-- OD .) \lol(..lj DC.

7 ~_e~~o~e~.[ .r·~': . ~ Ga: . .7 3c

SIGNAL .·50 KIY Here'!! a rr-al v.lu~ 10 aD IQeJ[~-

~n:'i~~~r·i~u~~~ ~eliall~~~ caul metal ba.... In black 6ni"h. Nlckelrd melal pOttU. SU"., con-

~~O~~N[~·. ~ ".~ ' . . s 1.03 SIGNAL .... KIY

A ~ kw kf'Y tit aD omarhlllr1y low

~~:·fr~~~~b~:;C:~~~I~~i1.~~O~~ lever and lacquf'ft"d ,laI't.. All COD-

~t.~.~'\!j[~.~.~:. Sl.65

BUD CODE PRACTICE OSCILLATORS @ MODEL C'0·120

HIl.l'I built-till dynamic apesk:rr. SwItch for hleh or low pitc.h ""nal. Key jack on front . inc" 0.1. rf:'al' for remote ~r~DlIor:. a~. ~~.m~jw:b~; crac~ll4Imel fiobol!. V.'lth tube. For 110 volt. AC or DC. ShPM. ""t .• 6 It..

~:T4C)0: ..... ... ... ... SS.57 ® MODIL C'0·124

Hacdln up to 2O..t1l of phonf"S. AIIO ha.!I bwlt..in lP'"aker •• duch i, uutoDla· tkallY muted whea. pho~ are ullrd. Hu variable volume nnd ~.ttch controla. Aay aumbet'" of kpya maY be CODOectrd 10 parallel. For 110 \'olt" AC or DC. Comp~ete .,.itll tulM'. stu. 4~· It 71,0\"' :IE Jy.. ... ShhK. \10'1.. 8 I~

~[T4~~: ......... .. . SS.S2 © MODEL C'0·122

HandlN up to 20 •• U of phoDl"S or

~~riai3!al;':~&~ \!~IPIP~nt~~ Idw for code "ab,lna CablM with parallel k~'s unll htadphoD~. tVa"' :It J%. 7t Jv.,"', With tubfo. For t 10 yolt!l AC or DC. Shl)8. wt., 1 1~.

~:T~.~~: .. . .... S7 .59 OUTLIT lOX

For tnmlnatlne key 3nd ~hone

~D=I~:"~~of.:~::I~ ~;:; to mout" O!ICillalor. Bakrllte C1lW. 4 s'f 'I: 2~· .. J 1,1"', Shpa. 'Nt., I Ib.

~[T~.O . : . .... ...... " . Sl .06 CODI couasl RECO.DS

No\VJ.0u C"'an I~ code quickly nnd t'atdl,..

l.~ i8-u;~:!l.~~~f:~~afi~~u~::i album. Vou COn !lit at horne ~de your rn:ord

r.ta::!t?;ng/~~t~:S~~~.ly:al!~d::~hb! able 10 "cop~·'· code with ra... CaD br uwd with an elKtrical or mKba.n1cal phoDOKraph.

r.r.'9S'o.6 ~'['r .. ... ........ ", S9.00

HI·SPEED MODEL 500 fl • • A. Heavy. black wrinkle fini"hed !'lCel ba!le ",-jth rubllC"l' l~t . I'CrlK"Y aliln ... -d lrl"t"-actlna; be~rin.~. 1,4" com silver OOntacb. Adiu~table double ti n ll:cr-paddl~ . Witla ~h(Jrtint.: ~";tcn.

~'i:~ili"'N ET .' . S7 .94 7. -050 . M o d el SOl . Cn rome plat-

~i.,~;=nl~~T ..... S 1 0.29 AMATEUR MODEL 515

fig. B. A durable. hcavy4utY Speed KII:'Y. Bue and coutinl( fillillhco-I iD bl-.ck wrinlde eIlamel; all otner parU

='N:~ 5~atI1l~S~rk:~!~C:e,ii!: 'A" .11,'er Cont3CU. I.ntcord uDd plu~; don DOt h::r.v!!! .hortio" "wit.ch. An u· caknt .peoed k~ 1M Prof~,onal or

~;?~~'1~MHET ~ :·. ~ . I"~:. $5.44 MODEL 30G-FIG. C.

Ao ~ptlonally fioe v::r.lur in a wellm .. de tJ,:'a;iDner'" key , \V"lnut · bakeIItll:' ballr , Metal parts nic:ld.--plated;

~;<4 .!li~~~rC:::~~o~a=n:r;::!~ ~: If:~o~t3: ~~~ ,~'~ :' . ~ Ib : .88c

CODE PRACTICI sn f 'V. D. AD ioe&pf:1Uh'e .et with practke key and ad;ulltable buuer; Inoldt.od. ",·alnut. plastic b:ue. ProduC'e'S hh:h.pltched code sh:naJ.. Eseelleot. for cJa.<4l1 or individual eode Inatrue-

~C:~o~h.~ ' ~tT~. ~~~',.,. s 1.62

MODIL "J" SIND ..

DELUXI WITH SPEAKER AD ::r.udio OMillator ""llh J output (requ('ncirlt and \'ariable volume conlrol. I·rodu~ !lia:nal lik~ th::r.t of commHrial CW Illation . For u_ o:t (I) Code PracliCl: ~l",;th fadlitlMl for key!! and phone!!

~yi~!ti~~~~oer i~t~iflit~il~~ ~:~&"si:n~lll~ro;did1~~t~~~I~; modul3taoD level of a tranllmIUC'f': (4) Si.lilnal Trac:'U- i0C'8tC'll ddfCtA

Model ")"' ,. 3. almple. Hsy·tG-UJl!! dmce for code practice or la.t ru<:-tloD ,",'Or1l::. Can be uM!d whh any ptllCtJce 08Cillator. loduc:tJon motor permit. speed. of 10 to 60 words per mloute. IDclude. fh-e

fu!~' :;!11!~rb~~~ t~d-':::: ~~ghl~k~:DW~ b~=l1 ~ unit. For 115 volts. 50-60 eycl~.

~'::~'1'bd"~ :fESTA .. S12 .50 76-102, 1000 ft. rstra. blank tape. NET .. ........... SI . OO

leA SIGNA

TONE:

fOI PHONES Similar to delun model but dew ~.Dcd primarilY for dnuroom in~

~t'!c:.~ ~~3aIlg!:f:: fa~!~ru~ adjulltable J-tooe audio output. ,':uiable .,.'olume ooDtrol. and eztr.a tcrm.1nal. for krY. aDd phon-. lnclude. ItIeDd-rrt"ch-e praet..ic. in. struc-t.ion!l for elaSllroom U!M". "'ith tubr. Size: " " .... ide. "V," hi.h ... " dC"ep, For t 10 \,olt •• AC or DC.

~I!4~~·. J~rT.. ". SS.S2 :'S6:r.ft"t.l~~~t at':'~ ~':.r :~I~!i~ IIpc3ket'. 7 V .. " Z 4!-i;"z ..... For 110 vol u AC or DC. Wt . . 5 l~.

73 - 432 . S,.lIon Tum l n •• B... Con»!!t. of k~ and I~ne

i~~~ f::,~c;ti~:~cti~~I=: ~:;.4~O:" .. ". Sll.76 Wt .• I lb. N ET . ........ S1.47

66 FOR VICTORY BUY U . S . WAR SAVINGS BONDS AND STAMPS

MODEL SX-28 IISUPER-SKYRIDERII

THI SX-2 a HAS EVElY WOITHWHILE IMPROVEMENT fOI fiNEST PElfOIMANCE

• 15 Tube Circuit • Two Tuned RF Sta&H • Tunes SSG KC to '2 Me • Frequency-Meter Tunln. • Adjustable Noise Llmltet' • Six-Step SelectlYity • Crystal Ph .. lnC • 2MV Sensitivity • Inertia Tunl". • Temp. Compensated • Full Bandspread

THE "SUPER DEFIANT" SX-25 It'" a ""'Orld -l~ter·· for \'alurl D~hi:ned and built with typif'8.l Halli craftrrs precisioQ. the SX·2S U!M!S 12·tut:.-. indudillll: rectifier. and tunes from S50 KC to 42 Me. with Frequency-Meter tuning. Amonii: it~ malay d-irable featutt"S are: Iliumi.nated "5" meter, caUbrated in "5" unit~ and db.; Six-step ge1«tivity ";th crylllaifilter; AutomnUc.Noi~ Umitrr ; Drift-compen!l.3ted O8Ciliator; Standby ""itch with b~ak·ia rrlay terml-

~~:~f~r("f:~~~ rJ2~~:~:'5ci8~~~~~ ~d:!~-~~~~!;!~ =::o~ ~~:~~~~~I:h~ae~d~~iJ.O~~~~~i. ~~?~iPRF~(~:n~'o~d~~~~~~~I::: tkity and .... nsid\·ity . The SX-2S is "uppli~J vrith tubc-s and crylltal. ~paTate IlY PM 8JX""akrr in m~al cabiaet matches the recftvrr. Firusht"'d in attrilctive Kf'&y wrinldr. 19Va' lOOK. 9'11' hlah. II I .... ' deep. Ila.!I pro\'iNon~ (or opt'ratJoo from emt"t~ncy battrry bank or from elrc:tromcconvutrr . For operation 00 110 \"Olt3. 50-60 CYcles AC. $9450 ShippinK wria:ht. 4S Ih!a. 97-513. ~ sprilker. NE T . . ... . . . . ...... . .. . . .. .... . 97·572. MODEL PM-21 lr' SPEAKER. As de«Tibrd with ··Super-Skyride.r" above. Shpg. wt. t7lbs. NET • . . ....... . $15.00

PritKiti.r: Holtlcraften equipment i. ovoilobl. only on priority. For "-I .ervice pl&o •• Include yow high •• 1 oulhorized ratlnff.

'OR ADDITIONAL HAUICRAnERS

THE "SKYRIDER MARINE" S22-R

COMMUNICATIONS RECEIVERS

HAMMARLUND MODEL HQ-120X

NATIONAL NC-200

NATIONAL'S FINEST COMMUNICATION RECEIVER! Other Important featurft are: Wide ranee adJu,t3blewrlH·\·3h·~ooJAellm1t ....

~!~b~~~7~1 ~e;::a:'o.· ~~V:=!~rl:a~~l~':'":!~~~ ~lJl~:c:= dve modt'TD eatJinrt: finished 10 tw.~toDe aray and chrome. ~U -botlCUldoa pha-. iD~",OD circuit. 8 watu! UDdllltorted audio outPut. I~ ratio 01 better th;&D JOdb. at 10 m~('n. ~parate rllah frequency olK'1l1ator and fint dnector tuhrs, ab-lolute minImum of lnhere'nI drcuit noi!tle. and 3D att~uatOJ" t~ toDe control. CODtrol~ iocJudo!: Combination tuning and baad~an.ee knob. RF aDd AF a:a.io coDlrob. BFa on-ofl and \'3riable pitch. J po!lilioD til.·place-standby fI\\1.tc-h. Cry!lltal a.elecdvitv and cry~t.31 phasing. SU= complete ~'itb tu~

¥r.:l;~i~~~~.~ .i~~~.~~~~ •. ~o.r. ~~~ . ~~~t.~ : ... ... ~~~.' $17450

HIGH GRADE MEISSNER EQUIPMENT 14 TUBE " TRAFFIC MASTER" SIGNAL CALIBRATOR SIGNAL SHIFTER

K~ Sound Equipment

Serues On These Fronts WAR INDUSTRY

1. Factory •• me. and ston paging.

2. Air raid •• rnlnts. I. Pep t.,ks and m a "

mMUn,s. C. E ... Job fatigue with

music to Impro ... moral. a n d Incr •••• plant efficiency.

5. For penonnel training. 6. For "Safety First" In

struction.

ARMED FORCIS 1 . O"lu and barrack. pag-

Ing . 1. FI.l d m.n.u .... r •. 1 M ••• Instruction . C. Bugle Ullla. S. Sen-Ice cent.r ent.r_

t .. ; nmen t . 6. C.II. and .'arml. 7. Cod. tra ini n g.

SCHOOLS 1. M ••• Instruction. 2. Educatio n b, rad io. 1. Paging.

'0 Lectur" and special .nnou "cement ••

5. Auembly hall •. G. Athleti c .tad l urn • • 7. En te rtainment .

THE HOME FRONT

2. Clwlllan deh n •• m •• t-ing.. .

) , First aid and deten •• el • • ••••

t. Instruction, 'or clwilian campal.ns.

5, [ nt.rta l nm."t .or chIIlan mor.'.,

Knllht amplifiers are .v.llable onl,. on priority orders

Knight 7 WATT UTILITY DELUXE SOUND SYSTEM

Ht"re'. your "Best Buy" in a versatile Portable Systeml You get mon" (or your money in Quality. features. and ~rvice. PrO\"e it to Yourself - try this top-Dotch system under your own operating conditions. You are fully protected. by our guaraatf'e of complete satisfaction o r your money back. [ •• Y to Use . JUSt ~t it up and U~ It in 3 jiffy ( Vou dOD't have to be! an expert to .~t perfect r~ulta.

Un lwen.1 Input . Tak~ OlDY h ilh·impedaD~ mi ke or phono. Hall microphone-phono fader type volume. control. In wene F • • dba c k . P~it9 YOU to v.-ork system at b ilher outPUt wi m better quality and less distortion. T on. Control . You can emphasize bass o r treble to !lult youf!IClf. Helps reduce feedback. illuminate d Pane l . UIIf"d only in q UOI.llty equipment . Fully lighted !llant panel Il:iv~ yOU ~y "i~bility an)'wbe-re.

All T hen "~Iu.· · F •• turn, H OUI tllX'ket pro\1sio n fo r eztra p~{ or maanrtic "peaJ.:rr or ht"adphonr!'. You <."an't make a wrona: con· nection brcauM' both mike and spraker receptacle!! are polarizrd, Compleh Portable S ,st . m . ComPlrte in com Pact por t a ble

c::.g ~l '1 "w~ttl!~~lifi{'~?I~~i"th ~~~;.n~:;!&~~~II~i.:t!~~u~::~ fltand , with 12-foot cable and PI~; 8-1nch Dynamic ~praker \vitb

~~~~~.aShdp~~U:t.~t ~~~1 \'ol tll , $3035 93·01.3. NET PRiCE ... . ......... .... . . . . .. . .

~~t·a~!~~:.~p: ... "~~5fbs.u,:~1~~.e~: .~O: . ~~~ . ~~~. S~~3i5

AMPLIFIER SPECIFICATIONS O u tput: Full 7 wattll Mstlbk power (12 walts p<>ak); hum is inaudible (67 db. brlow rated output); Output Imped.nn: 4CJ()()-I.500 ohms dir«t. from plate of tube; supplies field

~~df~aJ~(!~eO~r I;.t~e~~r::e s~~h~n~)~T~~:C'!':t~~s~ 1 ;rf~-C: ba!l!l and treble; G.l n : on microphone. tOO db .. on~ phono, 70

~~~~~ U~~!Y~G~Pti'~: : ~D;~~ ~~S~'!~lI~·}uls-;::~~; W~t~~R~~~1! tll'!"el~~.~~It~ , 60 cycl~ AC. Si:u: 10'" J: 8 %" J:

7 WAn AMPLIFIER ONLY The Kn l, ht 7 Wa tt "Uttle Giant'· amplifier IS al!lO available ~parately, with all featuretl ~ dC"9Cribed abc)\·e. Makes an ideal nucleld for as..wm bling your own !IOund IIyst em, or a fine replOl~ment for ob!lolete am-

~:~rr:w:)\'~0~dle~~d1~ .Fa:t~;; diagram on ba!M". Two-tone ereycrack~ fini:olh . Size : 111"' :II: 8 7.4" :II: 6~". l.na tu~. Shpli: . wt. 12-lblol.

~ETO .11 . . .. . s 13.65 ~'~.:~: r~, ~£il:~.~,.~~~hl ~~tgo

JUST CHECK THESE FUTURES, • Inverse Feedback • 2 Input Channel~ • 8ass-Treble Control • Safused Speake.. • Speak.er Selector

Knighr 14 WAn

illuminated Panel Option •• Phono Top

• Dual Output Sockets • Fused F .... Safety • &e.m Pow ... Output

PORT ABLE SYSTEM lIC' re '~ t he kind of Portable PA System you'd plan (or your9t'lf-

;;~~ ~II t~!~:~t!~~.aT~e t;:!:;~n:ngo~JJ~U~~~\~~ me>ans )'011 gtl 14 'iDQ./{s without a mg" of "cracking up," Thi9 JX>puhu power rating co\'cn hundreds of important PA uses. Th~ fraturt's are pr:lctical. designed to give best results. and you'll actually ~ them o n the job . The system is cleverly desiKned for

:~lP~ct~~~~~~~ ~s~roZ'~~~ !!a~ ~ ~;'fu~e:seai:W~:~ posts, in indu!ltry. in war training schools. et.c.. E..sy t o s.t Up . n d U ••. The 14 Walt Portable III U Pa~y to O~le all

:l~I~~~rl~i,::!" ~~dii:' j~fI~Ua df~-:.:t~"u~:"o ~d ati.~~oo~hi:l t~~ i~ COQlplt' 1.~ .

Inyeu. Feedback. Au "e-Ipeu~~Uipmf'Bt" f"alaN. GIl"... you ~tf'f' o U1Pttt. lw1t« tone qua.!ity. You <"an ,",,'Or\o;; the "y"teDl Qt hIoahe-r output k~ls bro,'au!te di!ltoruoo actJ bum are cut tJOWD to • miDimuw. 2 I n put Ch.nna" . Vou C"aO uee- D.DY hlab-impedaoce CrYlltD.l. Dynamic.

:~~~=-r!~ :~~tl!~b=~,s~n~ P~~:ao~h~I::~!c.dlOll!~~~ B ••• ~Tnb •• C ontrol. GII\"'l'1I you the- tooe- f!Dlph:uh you ,,-ant.. 00 both mike ond phono. Helps cut do\\-o. feedback. Eaay to UIIIC'.

Unh.,...1 Output. Ampli6tt hou bullt-In outPut trandortQe-r with a wide- ranac of output impedaQ~. You can UM' any variHY and Dumbrr of utr.l .. ~r.n. Laoe-tap permits U8f: of speakull at ",r(,OItcr dhtancc.:t.

Output : full 14 watts lUable- pOwrr Cl8 W;ltts prak) : hum is Inaudible (55 db. brlow rated output); Output I m pe d a nce: 4 . 6 . A. SOO ohm!! 00 ~1C!C"or ; de · :<i.ned fof' fOM or for aoelf-9:dtcd lJ)' na mic Spcoakt'u ' Input Ch.nne" : l .. o. ODe lor mike: one for phoDO, 00 Individual

~:~f:;IIIt..1;:~:n c.:i~~~~!;:r 12~db. :a:! ~°sOOo ~pst;b:tu~:~~~J7~i~r 2--6\,6(; (Bc-am Powe-r), 1- 5Y3G; Lin. Dr.l n : 7S ..... 3ll!l; Fused : full)' fUM!'I1 for ope-rat ion from 110-120 volttl 60 ~cI~

~~~:~:I~~rC""n~d~: 16~· J[ lO Y. -% ~- .

~!;~~~. ~rrt!,~ £~ . ~~:~ ·. :2~ ~~t~ Thl , De l •• e omp liAer is u,ed in I"'. complele ' ound 'y,tem, de.~b.d below.

Spa.k.,. S.I.ctor . You c a.D match a ddltJonal d YDamic . lJI('a 'l.;e-u of Ol DY maklt Instantly by the- .pedaJ output aele-dor . S.'uu d Speak.r . AD e-%t'luJUW' Knl,ht fe-aturlt . SJ)ltakf'r supplied with SYlltem is llpecially lu~ for protltCtlOD aeaiDst overload. illumina ted P.nel. Another uclu!Uve Knl~ht feature that's a re-al

r:~i~~ h6~~~c!i ~a~~r: :: :~~~t~n l:~!:;k~lf:~.rotKtion. ~l~~I:.~~~,~~obnuil~t:p~~r:;!~t~: ::!rJ:~ }~o~f.~ ~~!~.e~y,s~~ t a bl e. Qe-w type: offll('t-brad Low PreflSure- Crystal p ickup. Iwitch. armr t'1l t. Dcrdl~<up. Say eoodbye to tra.iJ.i.Dc; wirn. uua phono ca .. ~. rtc . A n d Th ... " plu." F e.tu ,.H. Crip-tite ~t8c1e ~\'e-Dl' ucideau.1 hlike-plue removal ; Du.! Output Receptacllt1J-UK contact type. FUR-prot«tM the ampli6e-r ; AC iDPut Is fapped for l ine \'olta a:c OId iu!ltlDeDt to saJe&u4I.rd output Ie-vel; b.u diaa;ram On baac plate. Comple t e Srs tem fncludH : 1- Knllht 14 Watt Amp1i6e-r ,,--jth tuba (/("U Phono top); 1-Shure PA Crystal Microphooe- with l2·foof ~at"le , OD dt"1ik I'I t8nd; 1- 12- Satu!!ltd DYDamic Spc-akc:r with 20-100t cabllt and plug: colDplete Inal ructions. Allcomponenc. 6t IDcomPD.Ct spUtn.rrylnitca!t('. 22 Y.t- .. 19~- .. lS- . We-iebt 18 only 53 lba . For $4910 110 volh. 60 cycla AC . Lc&s pboo.o top. SbPi;. wt .• 6J Ib~. 113- 034. NET PRiCE •• •....•........ . .......•••.••

OPTIONAL EQUIPMENT FOR 1C WATT SYSTEMS 93 · 045. Phono Top for t4 Watt Systf!Dl!'. For 110 VOlta, 60 ~18 I\C . SbPa · wt .. 11 It,.. N ET .... _ ............... _ .......•.. . $9.45

rll!.·:[l.~. ~~~ . ~~~:s: .~~ .~~~~ .~.r~. ~.d . . ~I~: . ~~~8.5to 93-0.1 . Enra 12" Speaker iD standard wall bafJ14e'. 2O-foot eoI'd aDd p lua· Shp". wt., 15 Ib:s. NET .. . . . ... . . . ................. . S1 0.60

::~:U~!'b~~!, 12~f~~~ !~d~~K 1~1 .. -~~,1 .. ~~~~lr8jt~ c':.~1~) l~o~I~~~~~t: t.:. ~~dD:2.~~-OOO. :tt'C paae- 77 of thi.:t

Knighr 14 w~n ALL-PURPOSE SYSTEMS H~re ill Onr of the best ",alu~(I avail ablr anY~·he-re- . A 9uaJitY lOuod ftYlite-m fDr ~_ mOlnltDt tYI~!I of infttaliatioD" Jncorpora t('lt the- amphfier deM'1"fbN1 a bove . Covet's UP to 6500 ~uarr feet. Has the- iatll'et \~"OI'thwhllr Impro\·ltmrDU to brin& you 6D~

l~rlCoh:,:r~ed°{o~~rlnm~°a%iDl:~n!~~~:~I~o~I~,:nJ'~o:z~~nCV:!r. ('1Ct'llcd . PTov idc-!i d~pcDdable rr.."ll1J uDde-t tou&hC'8t condition.. Con-r,\,al1vely r .. ted. idea l for moderate pow~r l'eqw.rement8, ca.!y to install and oDaate anYwhere.

93-035 . hKlude. : Kni g ht 14 Watt ampllfif!'!' with tubet. OCS!!l phono top) ' Shure Cr)'!ltfal PA Mike with 12·footcabllt. on dC'$lr: IItand; 1r DywuniC Spe-dker ID St~ard inclined. ea.. .. y-to-mouDt WaJl Ba.ffle. 2t)..loot cable aDd plUM. For 110 volt~ 60 ~11t

~h~~~: ~~t:: ~~. I.~: .... ..... ...... ...... ....... ..... ......... S43.90 93 -036 . SeIDe a .. above- but without tbe waU baffle. For ID~aUatiolUl \\·hne batHe ~ rquiPlDeDt L' already a\';lilabl4e' or \\·he-ft aoothf'T fype hi bafBr illl d Mdrrd. For optional aCttMOry rq~me-ot. !lueb 3.."1 pbono top, eztra apeakf"!'. t't r .. aPe c l~

~"~iT~~. ~.~~~', ~h.~ .. ~~ :' .. ... ~~ , •. ..• . . . . . . . . . . ...... ••..•••• .. s 4 1 .90

Output: full .10 watts ,(Sable POwn' (35 watts JWak); bum Is inaudible (55 db. btolow ratN output); O ut put I m p . d.nce: 4. 6. 8. and 500 ohm~ OD sel«tor; d("siRned for UMr with PM or 8t'lf-rsdted D)rnamic Speaken o Input C hanne l . : thrtt : two hili:h-imPC!dance mik~. one phono. on individual controls; Tone Con. h o i : for ba~s and treble; C .I n: on microphone. 128 db., on phono. 80 db. ; F n qu en c y Re.po n • • : 50-I O.0 00CP S 'I ubN; 2-6517. 2-6SC7. 2-6L6G. i - 5U4Gi Line Drain: 185 waUJol ; Fu.ed: full»' fu~1 for o(M"f"atlon from 110-120

16~:; s ~O!4¥C!~%~~i:;. R~~f.I~i~~ n:!~~

30 WAn AMPLIfiER ONLY

:!~~~~!~~?fi; 19~I~~ h~~~hPO~ ::~e:tc.:l~~mv~· K~~ur~l~nu:;:bl~e f::' lurea. pl"nt)· of vpr!Qtility. dependable pow", and the kind of tone quality you nt"ed . Hou!Mffi In an all.atee) .~'-a.~f'. in two-

~~~~~!dY ~~~:e. p~!i. '1~~~~nf; f'asily rt"movable. For 110 volts. 60 c~des

~~: ~~;h~n~u~en!aS;c~:u I'Crec~~ from l!stines below,) ~ phono top and

~r~~~.~~~ : .~~~. : .2.9. ~~ ..... $3495 i'u~~~~:.1ir~!~~·Ef .. ~~~:sb39 ~~t~

ALL THESE P.A. FEATURES: - aass-Treble Control _ Silencer Mike Jacks • Speaker Selector - Beam Power Tubes - Fuse-Protected - Take-Down Stand • E.R.P.I. Llcen ....

Knight 30 WATT PORTABLE SYSTEM .. \\1tat ty"pe of Sound System do You n~d to fill 90% of YOUr PA J1'Quirements'" Here's the An~Wf'r-tht" Knl a:ht 30 watt portable. You get far-rm.ching power and the right lind of tooe Quality. 1 Input Ch.nnel • . You c:aa use any two hieh-imprda.nce mlcrophOnf'S

~~b ~al~:!1-i~::ih~~:c;. Ptf"":~' ~ti~~o::.t!~ecfu~~ "~ht~lr~ individual controls that eive »·ou aoy J:ec of bleadina or auDas;. St. blll •• d _"YerN F •• db.ck , Gh'f'S you lTt'atft powt"r \\-ith ie1'l!l hum and distortion-aDd that meallil remarkably improved ton~ quality. e ... - Treble Centrol. Give!! the rili:ht kind of tonal empha~I!I. MinimiutI feedback. tooi comlK'tUate!l for var»'ioK acoustical conditions. Simple t. Oper.t •. Vou dOD't have to bP an ~xpe'rt to ~t up aDd operate thi!! portable 8Y!Jtrm. It·s lW) nsy to UM". !IO lool.proof in operation. anyone can ret satidactory mUll". The 30 wan system is complrtf'h' boueed in a !lplit..carryinK C3lW' of c-ompact and handlIOme deNen. Me-asurrs only 22V,' s 19%- ;It IS-, Carn'int: wlei~t ~ only SS Ibs. complete.

s..uM4i S .... k.rs. E%CJul'live with Knight . S~ak~ a~ 8peoc-ially fu!lr'd (or protectIon against ovuload. Prevenu electrical dam<1ll:e to spraker .. Optlon. 1 "hono Top. A rral ad,,·antaK~. Vou can buy the 30 watt ~Y"-

~~b."t~~I~d!!.t:-irir:_~~nV°f' t7fRpoMes~~t~,~9; ~~~:~:~.g 1~~~P~~ Crystal pickup, 6~'itcb, arm-rest. nredle-cup and plua-io CODllectiOO!l. Extr.-V. lue Fe.tur ••. You Krt th~ advantage of a special uni .... enal outPut selector. whicb permits instant matching to additional !lpe~],;ers or lioe. Silencer-jack~ check bum wben mike is removed. Six<ontact .~rr 80Ckets make COnnection ca"y; have safety jumper. which autOmatically

~~rru~; "':'C\':~t";~~~~~\~ ~~::e i~lreo':i;~r~e~p~.'f::! \i!~~~:: varies. Wiring dIagram appears ios.ide amplifier b~. Lighted, S I.nt·Protected P.nel . You a~ked for it and hn-e It i~ fully Wuminated lnstrumeot panel. slant-tilted and set-in (or Protection. Fullr Gu. r . nt.ed. All Knight ampli6t"r~ are of mOl'lt modern d~illn. They are E.R.P.l . l1~n~ and carr»' th~ r~gular R.~I .A . warranty. All pan!! u;lt"d in colL.tructiOn are conaottVati\"t'ly rated. The Knight .10-watt Delun sYstems cao be depended on for y~rs of performance.

COMPLETE 30 WAn PORTAILE SYSTEM Complete .-y8tem includes: I - Kn igh t 30 watt deluxe ampHfit"r with tu~; I-Shur e crystal PA microphone ",-jth take--down mike IItand (can be u~ a."I shon or tall floor ~tand or a. banquet lit and) and 12-foot ('abl~ and plug; 2- 12' Safu~ dynamic !lpeakerll with 20-foot cabllM' anr! PlUg!!; and operating IrlIItruChon". Lf'N. phono tOp. EntirelY lleJf-<'ODtalDl'd In ponable can-yine calle as illustrated. For 1 to voils. $7590 60 eyrir.. AC. ShhK wI.. 70 11M. 93-134. NET PRICE COMPLETE .. .............. .

OPTIONAL ACCESSOIIES

::;'~.~.~ ' .. ~~~~~ .:~~: .~~: .1".0, ~.~~t.s:.~ ~~~~:.~~: . ~~: .~ .• ~~~ts 93- 255 . Knight cry,ta,1 mike and floor stand for RCOnd mike la· put. \\'t .. t71bll . NET ............................. . .... . SI4.95

Knight 30 WATT ALL-PURPOSE SYSTEMS To ml!'E't "ary'ing ~uife'ments for J)t'rmanent installations. we offer a choice of the carefully selected systems drscribed below. S ystem with wan "ffles. Includes: Knl,ht 30 \\"att a mpli iY-r with tube-so It"ss phono top; I-Shure crystal microphone on 9'-000 floor ~tand with 12-foot cablr and plug; 2-12-inch SafuSt:'d d:lo-namic sprokers in \\"all baffies with 20-foot cables and plua:s. \\'ith complrte instructions. For 110 "olts, 60 C)'eles, AC. $71

90 ShpR. wt. . 68 Ills. 93·135. NET PRiCE . ...............•.....•.. . .. S yst em Less Baffl~. Same a s 93-135., but does not include the

;~~r:~,:,,·:~·· .. ~i'd:. ~~~ ...... .. ... .......... .. $67.15 System with All-Steel Projectors. Same as 93-136, b ut "'lth

~~~·3t7.1 ~r~'j.°Ri·C~~~~: .':-" :. ~~ .I~~ ......... .. , ... $85.15 (For optional a('('1'~wrirs, ~ li ~ting abo\"f"J For special industrial or mililal)' applical ions, ,,,Tile to Our Sound DIvisjon.

71

Output: 60 w:llU u!l.-.hl~ poW'l'r output (lJ("ak 90 ":lIU); hum i!l i ll .audilll~ (60 till lJ4:olow r.lt4!'d u Ut· put ); Output Imped.nce: 2 , -l. 6 , 8 , 150 and 500ohlD!II on ~Iector; Input Ch.nnel. : :t.i • • fou r for hiKh ,i mprdnn~ m i k O: lI, two o n fatl ... " for phollt); Ton e Cont r ol . : at1~n u ator·typr. on~ fo r tr~bJ. .. . one fOf b.au ; C.ln : on mik~. t JO

1.lI.~:::!'.o:no.o.~O~I~ FC~~eCI~! cult : Srslarat~ mi k~ pr~· ampl ifit' r tl ta.l:l'1J, elfttrorUc muti n • . powt.'" d ri \'~t staKe, IK'l""ral e W ..... . !lCt~n a nd pla te \·oltouc .. , o n PO '1fn" IIt~; Tube " ; 4--65J7 , 2-6SN'7GT, I

~iU4b~r~~ ~~~';5 ~-;l~ '! ; FUNd : full)' fuKd for o(W'ration from II~t20 vol t i'! . 60 cyc:I<."1I AC; Am p llfter Sh e ; I '.JY. · .: U Y4 · • II Y4 •. [ , R . P . I . Llcen.ed .

SPEED UP THE WAR EFFORT WITH THIS POWERFUL SOUND AID!

PA IS VITAL TO INDUSTRY TODAY

Po we- tful

Paging

For Emergency Alarm'

Music fot

Moral.

For Army

Applications

FEATURES BI.-sed Powet" 4 Mike Inputs 2 Phon a Inputs InwN'M f'eedb,.c:::k Power Driver Spe_er Selector

2 Tone Equ.-lizers I"reu-t .... UIk SaletyFuud Uchted Pane. M,IIS ter Control Uni~1 Output

The Knllht 60 \\'att Industrial Amplifier IIUS ix-e n csppcially designed to r~t th~ bresent..<Ja y n~cb of our Armed F orcn and \Var Jndul'trie:i for poW't"rful high-Quality public addr{'ss equipment. Pto\'id{'s ad~ Quale eovt>f"..t.K{' for indoor ar{'aS up to 70,000 !:!Quare frt"t where noise level:i are 10\1,' and up to approximat~ly 20,000 SQ . ft. ",'here Itoiw l~\'els an high. Easily handles outdoor areas co'V{'ring uP;to 40,000 square fef'l, • MIcrophone Input Circuits . Each auto-matlcally Ililen~ whrn plu& ii'! witbd ra\\'U. Indh-idual volulDe ilIld IDixiq oonuol 0 0 rach . 2 Phono '"put Circuit. , A !llinKI~ fadn-~uota \'oluwe Icv~1 of both pbooo drcuitll . Si ngle M e .ter ContrDI rf"8ul atre o v r-r all "oluwr 01 all loput drcuiu. SlmpU6es oooUol . Sep.rete ••••• nd Treble Control' prnnlt tonal r~.poI1llC t o m ect \'aryin& rcquirclDrou. 1 Sep.r.t. Rectlfler Circuit • • one ffW p hlto: 'l.'oltaan. oo~ fOf ",' reen \'oltae~.I . &lid OD~ fOf l..Ma~ \'oh~ on outr.ut .t.a~e mran bette-r pow!'r

~~~~:~~~t:;~'~~ckin~~hp.~i:~fuil-:;'~~~: ~rit"~:~~ :O:~~fck ~i:I~~~&)l~kt:~!~ld~ for Madphone or loudi'!praktt monitorinc. Sprak~ .. lector .-witch allow. iRJIt ant linprd~ matchin& for anY of ~vrral oombina· lions oJ llpeakers. J 2"' permall~nt ma&net

~~=:~r·C::e-~~r-:::I~~I~ttfd::: · ':~~~~~r~~: lIOund projcctloo\\ith ma1imum clarity of to~. P.rtlcul ... I,. suited t. mod ... n Indu.trl., . ppllc .Uons: p L.Dt · \v1dr 1'U"allh a Dd Pt'P

USED BY Factorl •• Army Camps Sbdlums Th •• tres Audit oriums Athletic Fields

Schooll Shipyards • .-nd Shells Alr F ields W.r~houses

Armories

~~: . ~~~t~t~~lR~~~t:·= f:n:~~U~:; oj' mu!UC' to rrlieVC" monoton), - a mrthod aJ·

r:ac:~°.;;tu;~~~ a~it;:o!~cUc:~ f.~~~~: acddrDt. re_ullin!: from mODotonY of machioe operatlon!.

60 WATT INDUSTRIAL SYSTEM The 50 Welt I"dustrle' S.stern Cornplete iodud" I- Knight 60 Watt Drlu:rr Amplifitr \\;th tu~. 1t'1VI phOflo--lOP whleh Is Ill' tr-d _po • ratrl)'ntI an o p tional aC"~-.ory , l-~hurr Modrl

~~~~r:~~tl~il~·~~i~~,t.r;'J:i'':-:bir",::~aJ c:~: n«tor . I - Sh u", Modrl A .... A · 'preu· to-talk" .!'\\;lch . I - OrluKr ehrome-fiDiahrd 10'" ,I~k tl l and . 4- Knlght S. ... fu!W'd heavy-duty 12·

;!.>':uan~~ a'l;~~!lai'~I~~~~ i~f:~g~o~:).,,~ Umn-r"",,\ l lI ne-· ma tch in a tran ,.form",rA. \\' jth in "tructionll. For 110 volti'!. 60 ~d~ ;.C" . Wt ..

;~~r96_ N.t P .. lce Complet~184.50 93 - 197 . Same •• abo"., but Ie •• pro"

~E~ .. ~' .~~t: . IJ5 . 11~:, . . .... $ 149.8 5 For floor lIt a nd in pl .. ~ of dle'llk lIt:1nd add to abo"r pritt!' . .. ...' $2 , 50

OPTIONAL ACCESSORIES 93 .. 1.7 . Phono .. Top \.\-;th Shu,. loW.rrr:.

·N'r.f..~~~~: .F~r. ~ ~~. ~" . ~ .c~c. ,~~ , ~~' i ~ . ':0 47 - 410, Ruhbtor ~red 2 ,,·ood . Spt-ake-r cablr . pER FOOT , ... . , . . 3c SO O F.e t . .. ... ............ $12 . 01

60 WATT AMPLIfiER ONLY

~":. ~!:u .. h1·~~7r:!aJi=-t!6~r r:~thm=~i equipment I:trd in thit! c .Uaio lC for RlaidlllC up YOur OIAD PA flystrm" . ~ nlllOoptianall"qul~ mrnt abovC'. Houtw!'d in all ... teorl ca...... In t\\"O-

~:~~~~r.~ (T;:rklrlW"~id~·& .TaCo~::!:r La ::,~;::.: d iaaraw 00 bottom piaU of a m p Wier .

Knight 15-18 WATT DELUXE 6 V.-II0 V. SOUND SYSTEMS \V~·,·~ s:on~ "all-out" (or Volue in thi~ popular lowpricrd Mobil~ Sound SY!l~m' Carefully eneineert"d. IIlcorporating every worthwhile improvement it offen mort' features and more uuble power than other comparatively priced lIyt¢ems. It'sruggffl as a baltleshtpand has the kind of tone thal is "tops" in PA performancel Comp.ct. Com pie'. ' You ~ pVerythin~ bullt-ln- y,'hh Ilhono includrd- rleady to work: from any 6 volt I'Itoraae batter)' or from ltD voll 60 cycle AC Une.

[ •• r loOper. ' • . It', tallY to If:t up and Ul'C th i., Mobile Sound Sy"'t~m. \'ou dOQ't ~ technic-al Ic.nowle-d .. "l" Of" Itn'vfous P ..... e][~rieDOe. You can't mak~ a \Vf'Onlt conn«"tion. All ~1Il.'C~rie-8 plue in. JUlt art it UP :Jnd cet IMerfIKt r~ulu ti«ht from c.be "~ry start DO matter where you may operate .

• n· ... rn F.edb.ek . Thi. huponant f~ture ci\'~ YOlllrPater oUtput, bener tone fl,uaJily; rfiluct'tl Ilum :.&nd dt.tortion !Ie) You CaD operate at ~.lC.her volume. It·~ a Quality feature.

S.fused Speakers. Fu~ 1'0 they can't br damaaM by o., t'rload. An ezcluaJve ",nl.ht de\-rlopment that gi~ you at:MtOlute IIpeaker protection-a feature you'll be 1IUJ'e to appr~i.te.

Two ~n put Cha nn.ls . Amplifier tak~ any hiah -imprdanCl!

~~:'~di~dci~~ilo~~I-:'::: ~~~~ fo~O=.rn~k·::·bf~~~'I~~~nncl B ... · Tr. bl e Control. Givell you iu~t the tonal emph3.:od~ YOU \,'ant; alit!! down l~back; all8ur~ cit-are" ~lX'fth 'Y1th J:re-atrr pC'netr~tion for outdoor "'ark. N'ot jUllt • ~ach::et. but u truly u~ful fe-ature that add. to per'formanc:C'.

Sp.ak.r Selector. Ptrmit!! Quic:k. accurate matc:hlm:: of additional !!(If'akerll . Simpl)' tM!'t !W'1~tor whttl' volUme and tone Quality are at their best. No Ku~~nl- no bother.

S'-nd. br- Switch. Savr. the hattery. but kl"ep!l filament!! ready for Quick U!W' , Addl' ntra hourI' of UIW frOln bauC'l"Y; a val uOlble economy Iratun )'ou'" And u!lC'ful in the fu!h1.

And The • • "Eatra •. " GnP-tite mike IIOCket; ~paratlf'l)' 'ueed On 6 aDd 110 voltlll; C'h:lJl8C' O\'C'r from 6 volt" to 110 \-olh iu!!t by c:hanllin.:; power cabIn; lili:hl~ ooatrol panel. NOlhinR ov~lookrd: you 1:('1 the moAt for your mon(')·.

Compl.t. 15·18 Watt Mobil. S,..t.m. rnc1udn 1-",nl, hl 15-18 waU 6 volt-I 10 \'olt amplifiu with .tube's and built.in phono ~uipmt'tlt; Shure crystal PA mlc:rophon~ \\ith de~k IItand and 12·foot cable and plo.lI; 2-12" Sofueed 10M dynamic s(X"akrrll WI th 20-fool cabll''1'I aud IIIU",_: 2-~dl •• tft'l projKtor!!j C'Omplltt~ instruCUOnli. F or 110 volta. flO cyde-I' AC, or 6 \"0118 DC Shpa;. wt., 80 It.. $96

90 93-052 . NET PRICE . ..... ... . . .. .. . ...... . . ... .. . 9 3·053. Same ;L:j above. but leis pro}«tou. Sh~ .

N'i:"T6''.'Ir.'C[ " .......... .. .. ...... .. .... .. $82.35

Knight 30 WATT DELUXE 6 V.-II0 V. SOUND SYSTEMS This is the' fillf'!'t Mobil~ Sound S}'st~m ~vrr offC"ft'd at this pri~ I It·s .nl:inf't'rC"d right and bILiIt-ri~ht for Mobilt' ~r\'i(""f'. Don', confuse it \\itb ordinary ("(Jllip.. m<'nt that can't "13lf: it." Check the (("aturf:l!, t'asy operation, ruggedness, of this (luaJity systf:m. Wo r k . Anywher~. \\'ork It frolll an)' 6 volt IItorace W-Uf'T'Y; run It from 110 '·ohl'. 60 qc1es AC. Either ""'ay, we 5:uarantec full 30 watu oUlr)Ut. Four Input Cha nnels. Vou can UM" any ..... '0 hiab-impedarK"t!' mlkcs alon.: \\';Ih phono piC'k-qp on amplifit'r ~nd nne adflidonal phono pic:kup. You can ("Ontrol e&C'h mlkC' ~par.tely. Phonoa arc: operated by fader control.

In'nr •• F e~db.ck . GivC'$ you I:tea'rT output- brner 'ODC! Quality. You c-an work the .y~tvn at his:her outp,:" Irv4!l" bC'cau~ di~lOnioD and hum are cut down to a IDlnhnum.

Dua l Tone Cont r ol" . Help cut do'\\"n reordbac::k . OIU!'('ontrol "..n" bal'8; the othrr varin lrC'ble. Ba~ cunltol lUf"Oo:'d to I .. ft make." !lpecch reprodu~don crl!1JK"f' and cleat'C'T .

~~~~:~:.Ij~~~r ::~::i~:~~I~c::~~d:::~~~:~~~ken, , Volts or liD Vol t . In a Jllly. ChaDRt' the Sy!!tem from 6 volt!! to 110 \"oltl' in an InslaDt. JU!lt ~haD&e p1U811 at reat.

E . t r a Fea tures. HOUI illuminated control panel: SallI~

il,::k~~~~:t::'i~;b~u~~O~:~~'i!r:~~:~d~~~k:;~k; autlntl; fU~tl un 6 and 110 volt'; phoDC' 'acu: d1aanun. C o m pitc t Sl n91. Unit Onlg n . A m pti fi rr. phono a n d Ilow er ,"upplie. are a'M'mblcod in a compac-t, hand~me .tcd casco sUe, 19V." .. 14 ~· lIi 1J~" . Compl ote Delu •• Mobll~ Sr. t.,"_ Includes: l - Knl,ht

~li~~~t~ d~~~xnro~~~fi:~~~h !~~)eS~:k~::'~ ~~~nc:b~id \'olt pown !lUp~lilN' and 'u~; l - Knl.ht EI«tro-Vojce

~{~('~)'d~~c ,,':'a~dop~~on~l~~~;'; 2;::-utn~(!~~yPI~~0~'>~ 2_ Kn lg ht 12·inch SafDJlNtd PM l'I~ ... ken ,dth 2()"foot ('nrdll and plul:::II; inllructlo .... For 6 \'olts DC or 110 VOllS AC. 60 cycil.'S. ShPK, \Ift., 90 IhI-.

93· 2.52 . Comp'!h Knight )0 Wa tt Sr.· $12015 t C"m (1..,. .. "'r.-ll.r"'rl'I,.rl") . NET PRIC( . ,... ... .....

93 - 1. 53. Same as H·1S2. \k-acrilJcdutJ(we, but with 2"t-:' :tinrr IItH'1 projl"t·tor .. and .turdy mounting hr:lci.::rt" ;\11·

·~~Ts~RI'C'El: :.l.~~Lt. .• • " • •. • .•• ••..• ,. $135.15

AMPLIFIER SPECIFICATIONS Output : Full IS watt:t (6 \,011.), 18 watts (on AC) usable- power output (23 Wiltts

~~'!3:~ ig:l,!il~~O(~ J!~fA~,;:(~a~~1 °s;!:~~~.~,!~-:.\~:m/::'·::::,:; ~iA~i impedance mike. one for built...in phono ,,;th Individual oontroll; T one Cont ro l :

~~n~~IiII;:::':"~~t~~ICpS-." T~=:~~~!dl.51~·sC7. '2~LJ:,~ t!!:j,:;C~ ~IC.· !rliIO ~~1~3-:-MO~I~~S'A~~~:'16V:' ~otl·lliku:el-:;~~ r.R~~~~ ~lc!n~~I~

15-18 WAn AMPLIFIER ONLY tTt'e thi. uni\·en.al amplifieT' to build a truly all-purpo!lot' ""nem t.'l.ilored to )'OlU' .. pedi\c ftf!'Cd • • Amplifie-r hll!l all fr~turrM dr1'l('ribed at Idl. Supplirrl in "turfly. ~'rcamlincd Iteel c.a.~. With phODO top. For 6 volt.. DC or 110 voh:J, 60 cyclClj AC.

~~~~"r. ~"l'" n.itt'~ ... ..... , ............................. $61.25 93·050. Ampli.6cr u abc)\'c, but with lUbes. Shps. wt., Jl1lH. NET ... S66 . 10

'MPLIFIER SPECIFICATIONS Output : 30 watt:s IUllfl/1! (37 peak); hum ill inaudible (60 db. ~Iow raled output) ; Output Imp. : 2. 4, 6, 8, 250, and 500 ohm!' on !lClector "witch: for PM Spcakt'r!l; Input Channels: Four. two for his:h·impedan<-e mlkNl, eac:h \\;th indiV"idual controlll. ,WO for p hono on fad~r control; Tone ControlS: Two, on~ for Itrblr, OM for haK.~; Gain : O n mittophon:s US db .• on phono. HO db.: R u ponu: 411--10,1100

~~~~JA':~. 2ot;si~~~:19~.\ 11~~:·IJy;~.L~R.~7~i~.n~::~ n : 1010 watl:J

30 WAn AMPLIFIER ONLY 10 o;lrf'3mlinf'\1 nll ..... 'f>o·1 raM' . \\1111 VhbOO top. r.\lf t- ~'o.lt.;J Dc.: or 11U ,".:JoII .-\ $8995 W cyde'lt AC. LrM I\IW", \Y&.., 60 lba. 93·151. NET PRiCE ..... • . .... ... •• ... .. .. •• . • ... .••..•.••••• 93·150. :\"IpliflCl" ;l.:I. aoo\'c, bul. Q)Q1l'lcte wilh lu~. !:illl":. wt.:62 I~. N[T PRIC[ ........... . ... . ............... . .. . ............ ... .. . -S9S.3S

73

INSTANT SPEAKING COMMUNICATION-SAVES TIME, STEPS, MONEYDESIGNED FOR FACTORIES, STORES, OFFICES, INSTITUTIONS, ETC.

MASTER-SELECTIVE SYSTEMS

~ ~!:~~tO~~~Y:f ~~S; M a tlt~r 51 ;Ilion and up to t~n Sub-StalloD~ . You can build up your 5y~tem Jlrog1"~yeIY be. i naioR ..... ith tbe M3.l:Iter S(,UoD and oae Sub-Station. and adding Other Sub-Stations at' the n~ dryelop~.

call aDY Su~Station 11l~:'d\:'I~.t:~i:.~ym~ all Sub-StatiolUl !limuitaneou!lI)'. Sub-Station!l may call Ma!ller but not each other . \ViII Opel'ate ~'i lh a.!!I muc:h a., 2.000 feet or cable betWec!D IIIlations. Muter ~lectiY(' S>'stem. feature: SII.nt Op.r.Uon - .hu18 Out all lIOUJld!t from Snb-Statlon locatioDs "'hea not In UM'. Far-A • • chln, Po ... ....-voice will carry clculy 2.5 ft. ( SlaDdard models ) and up to 50 ft . (lkluxc model.) from Sub-5t.don ualt . PrrsoQ ('alled at Sub-Station may lhe~fore answer from any di.stance up to 50 ft . without leaviDR

~'~t:r.°l~h~ i!n!~O~~ n~ti~Vol~'!.eO~;~if; ~~:~~~ fr~r: ,:.;~I!i:r.r i~o ~::riUI :oe: I.."OIIU onl y IS to 20 cenu per month r;:-:rectric C'urr~nt . Oper.te Any w h.,. from 110..115 \ 'olu AC or DC. T u b.s-I - 12J7GT. 1-SOL6GT. I-JSZSGT • .I - L4OCT.

STANDARD MODRS Standard mod~11I have ' -,,"'atl outpUt; penoD

~! ~~tr~~~f:t:a~t~d!'':trDfrtc:,.'_~~t~::r-finillhed cabinet . 9 1';" z 8' I: S%' ; Sub-StatloDa ID attractive metal cabineta. 7' I: 5%' z 3%'. '5- .00. St. nd.rd M •• t .,. St. tlon . 'Handie. one to five IItations . With tubes and In-

1I~[uT·tI~AStW~~~~~· .. ~~t: .. ~~ .'~~ : .. $19.95 95- 80t.. St.nd.,d Sub- St.tlon. ShPR. wt., . I ~ . NET EACH ........... $7 . 25 .'-.00. 3...cond. cable:. P£ It FT • .. . . 2 ~C '5-810. STANDARD MAST£R 5TATI 0 N. Handles up to 10 l!Iub-eta tiOI\ll . UHr Sub-Stationll and cable U!!tc-d above . \\ ith

~~ ~~'It .'::'. ~I . I.~.: .. ......... . S24.95 DRUXI MODRS

2',4 watu output. Handles up to 10 Sub-Station!! . l>ick. up voice SO' from. Sub-Station. Ma.lfter StaUon in walnut·finishw cabinet. 12'z".S%': Sub-Station. a~ ' In attructive waln ut·6.ni.hed cabinets. 7 v.' a: V K .'". 95-815. D.fu •• M .... r St.tlon. Com~ete ",i thltubf-s. junction boll: and TrutrucUona.

Nhlf' £leii'. ~~ ... ... ..... , .. ... S34.9 5 ::o-:e~ ri'ft~:~ ~1~o:~!u~~:~t~;!iI~cl1=: i4~~ .loNI~rE~CH .~.I~g: .wt .,' ..... . $43.50 ~t~:: ~!: :trUt~~'H~-.~ ~~t~~~ . ~ .n~~·I~n .9-601. J.-Cond. Cable. P E R F T . .... 4IJic

SUPU-SELECTIVE SYSTEMS

*' ~~tJ;I~. arowu~~:~a::::

t~commUDication IIYfll-

IJ!i tern offerlag complete

'" ~d·a~~xi°~ll::70ga~!i all kind. of reQulremenu ia indulClf'Y. 01-fic~. iru.tltution~. etc.

~ lit ~f'::~tll~a~i'o~~~r.:! that lIeveral separate

t .. '()-.. '1IY COOVI!naUons may be- earned on "imDltaneousl)' \\:ithout C1'OM·t.alk . Any ooe Mastn StaUon maY talk to any othn MalCter StaUOD at wtll with aheoolute privaCY. Thne can be DO rav~roppina. DO interference with CODversation . Mcutertl may ('all one another f'eaasdl('M of whdh~r .'aUon bt-inK called hall power "on" or not. Sileactn& leatu~ eliminates

i~' ~.n~t~!uf.oo:;e,~:~/ocO;b~;e::~ ~U:~ betweea etations. Variable volume controls

~r:a:e~el~~~!.OOi!'t-:nd;:::":.al':u~~~lnWa: cabinetll. dedRned to fit iDto the tfiDf"st lIurroundlnas . Finished 8Pfll"3rence front aud rear. Compact construction. Standard Model~ arc

:'1;h~. 8;0~ !~~~t~U~o~tr:~1I1 ise \.~~:. I:A~ Y2JPJt. I~tsoL6G~. 1(~J1't~'GT:r~~T.

STANDARD MODUS The lItandard lJIodel~ 01 the Super-Selective Syltem.bave 1 ,,·.Upowet'output. V"t..l1l~ .5- .215. St.nd.rd Sup.r-Selec th. Unit . Two to 6\'e u.oJtll may be u..ed . Two lICP3rate two.wa~coDvnsauons may be held tl.imultane-

'Nu['.r £A~"'~~~ ~.d. ~~~t.~~I.~~: .$23.50 .9-602. 6--Cond. . Cable- for 95 -825 unlh. rER FOOT....... ..... . .. . 8 t-ic .5-.30. 10· STATION SU"E R- SELEC TIVE U NIT. Identical with abo\·e. but few

:!!'. ~tr;:~~~ iti~~n:~~T ~AC~ $26.50 " .-.03. II-Cond . Cable for 9S-IJO Unitl. " ER FOOT .. .................... 13C

DRUXI MODILS The deluxe models of the- Supe-r· SelectJve SYIItel1lJl have 2% watt II powcr output . Up to ten IItatioOll may be ullf:d to permit five simultancoul'l two-way conVC!'t'llBtlons with complete privacy. The deluxe lIIYlltrrn. are deecrlbcd in detail 00 the back CO\'er of thi. catalog. '5- .35. D.lu •• 5up.r- Sel.cth. Unit ,

:!:ahl:t"et>;~~I :~~?~::: I~rb.~'oot caSb31e , aad N[!fUCH.. .. ...... ....... . . 4.95 9"-.36. A •• bon but with prhac, •• rphon.. LiftinA; ~rphone di :K'Onn("('hi loudttPtak~r 100 th"t ··talk · lhnen·· Ilwiteh does not reQull'e- manualorx-ration . \\'orks like an ordinary

~lfh~A"c: ~h". •.. ~ ~ : . ~ •. "'~ .... . S43.50 49- 603 . lI-Cond. Cable for 9S -83S and 95.8 36 u Qita. PE R FOOT . " ......... " 13c

COMBINATION TYPE SYSTEMS Afford the ultimate

1* In flexibility. The eODvenienee and tlme·savinll adv3ntalln! of thew 6Y.tems are without equal. Ulled czten,dvely in InduMrY. ot-6ce-s. lIChools. institu

. lions. etc. COnsi~u of M a~ter StatioDII aod

combizaatlon desired. MaM~!bS~!~r!~IUIm':y ~ any othn Mallte- or Sub-Station; Sub-StaUoru may 8mwer but canDot orillu'ate calls. No ...... itche. to ope-rate III the Sub-Statio04. All M aster. may have Sub-SlaUoru In commonl or any Mastn may have indh'ldual SubStation • . DiallTam IIluatrate. typical inatallation: two ManN"1I have two Sub-Stations in common. and one Master has Ita own SubStation; first Muter c::a.nnot listen-Ia to the Ilin9:le Sub-StaUon at riaht . Standard Master !'ItatiOn units have walDut cabinetll. 9W.' I: 8'" II:

~~:. I:Sj':A!j~ag~r:l:~a~itr:('~~! ~~~~t~a;~u~ eablnH. : Ma.tIter urutfll. ai.ze; 12' I: ~ X S~·; Sub· StatioQ unite meallure-: 7V,' I: 6 ' I: . ' . Suitable for the 6n~t offiC"ell. For ope-radon from 110 vol'" AC or DC. Tubn u~ on both model!! : 1- 12J7GT. I - SOL6GT. I - JSZSGT. I - UOCT. With completle lostructions"

STANDARD MODIlS Staudard SYllt~auI ha\'e 1 wall output. 95 - 850. St.nd. rd Combl n . Uon M • • hr. T",·o 10 five units may be U~('II. \\'iI h tubes

l~CtH~t~~~~~.s: . ~~~~ ~ ~~· t:: .l1 ~~: .. 524.95 95- 851. Sub-5t.Uon un". Shpg. wt .. 4 It, ~ . NET EACH . .......... " . ..... S6.75 .9-.10. S.pair cable for 95-850 Mallttl'lI. P£R FOOT....... \ llC 49 - 611 . 2-Cond . ('able for Sub-Statloru to M3~ten . PER FOOT , .. ,..... . ... 2C 95 - 860. to - STAT' ON COM&'NAT.ON UNIT. Id(' nt it:a1 to 95 8S0 but a oy cOlnblna-

~~~g~~.: .~ I)na}s~. ~alT~AuCHI. .. $29.75 49·6 12. t o-pair cablc- for 95-860 M a,ttrs. pER FOOT ................... .. ... IGc

DnuX. MODELS Dduxt units ha\'e 2'-' "''alte outPut. Up to . ten unit. may be u~. in any combinatioo of M aaten and Sub-StaUoM.

~:;~~ ~·n~~llu3·r~.D;:~;.t';ACH . . $38.2 5 95-866. A •• bo~. but with prh.c, •• r· phon •. UftinK ~arphone diltCOOAttb loud-

~:.~~ . " .I~:. S46.95 95-867. Delu •• Sub-ShUon Unit . Shn~ . wt.. 6 Ills. NET EACH S 11.25 49 - 612 . Io..pair ("'able for de-Iul:e Ma.. .. er'. PER FOOT.. . .. ... . ......... 15C 49 - 611. 2-Cond. cable for Sub·Statlof\ll

.to M allter . PER FOOT... . ............ 2C

Eoch 01 Ihe altove [)elva Model. are rf'ailoble In .ystem' u p to 80 .tation. on .,.dal orde r. Write for d e tail ..

74 FOR COM P LET E IN DE X SEE P AGE 96

Needles and Accessories

RECORDING NEEDLES

S ... PPHIRE CUTTING NEEDLES fiG ..... 6S-S00. KNIGHT. Precision-around and POliAhed sapphire

'i~~". ~~I.~: .l~~~ .~~ .co.a.l~ . ~~~~ : ...... .. .. S3.50 :"!!;-I:b~~F:r"a~ISa~~~~i:dt 1I~::ai:~trY di~::rAb t:~~~i re $n6~'HO 65- 854. Pr~lo long·t\bank sapphire needle. .. . 6.00

w. resharpen Ilapphlre " •• dl •• at S2.S0 EACH .

STELLITE & ... LLOY CUTTING NEEDLES fiG. C.

~!;Ba~~'::1bf~~~v~~:~iai~.rmca~~~~l~~i~eHS 1 .00 65-S:l.0. Permo Point Profeulona' Recording Stylus. • orovidra l to 5 hours of ltefvia. EAC H ........•. S 1 • 1 8

STEEL CUTTING NEEDLES fiG. I. UnirOTm flat aIIank .t~1 needle.. Special alloy steel hand-

~~~egj~ ~ Nf~H1.gepa~:!K~~5.g ~IET.~trd di~~ ... 5 9c 65-900. KNIGHT. Single needle as above. EACH . ... 1Sc

:tt:'-::!~~t'~~~c;.~lO ~'. ~i.a.~~~.~~~~ .~I~~h.~ .. ~~.R- . 9 Sc

PLAYI ... CK NEEDLES fOR CO ... TED DISCS

~:;a~ ~~.,.R.:O~~~ .~~~~~i.,:: ~i~: .~ : ~~ .t:. ~~.~ 53.60 65~820. " W alco" Sapphire. Fig E. 2500 p lay!! . NET . . . 73c 65·11 2 5 . Red Shank St~1 NL-edlr. Fig. F. Pks::. of lOO .. 3 8c 65~853. Permo Tr.nscrlptlon N.edle. Semi-Perm~nt type. Giw:s approx . SO hourI! M"rvi«. NET . ........... . 69c

RECORDING ACCESSORIES RECORD THREAD REMOVER

Rotary brush sweeP!! up thread cut by recordin& stylus. Hal! Hance with hole to 6t center spindle of turntable. For aJl I(Y turntables.

:J)~92iJ: ~ ~~: ......... 98c 69·921.. 12'-1~!li.z:e. J...c5!lflanft(' and set'!"w adjustment .. . S 1 .50

GROOVE ANALnER For u~ in determinin. quality and depth of record IroovC!8 and condition of nC('1jles. EMily adjustable focus . ~1agnifylnl power. 15 ti~. Illuminates diSC" surface hy tllelf-containM No. 1 battery .. nd !'mall bulb. Flnlllh('(1 in black. \Vith complete inlilruction •.

~'li'~92'1i: I~h .... $2.25 CUnlNG LUBRICANT

69-900. Cultln, Lubrlcent. For U~ on di!tC bt-fore cuttlng.

~~~:C4-o~~r::boW~·~·tT .a.~~~~~ .0:. ~~;~.i~~~ ....... 29c RECORD MAILING ENVELOPES

Heavy enveloJX'"!I with cardboard in~rt!l . Mail di~ qfeiy. 65 - 500. Far 6' d i ... '"II. P kg. o f 12. Wt .. 2 Ibl! . NET . .. .. 75c 65-501. . Far 8' diso . Pkg. o' 12. Wt .• Jlb \!. N E T .. . .. 85c 65-502. For 10' disc:o . pkg. o ' 12. Wt .. 5Ibs. NET . Sl.05

RECORD LA'ELS Gummed rrQ)Td labt-Is: have blank space. ror titJe. No .• etc. 65-521. . Shpg. wt.. 2o~. 50 For . . ........... 25c 65 - 522. Shpg. wt.. 80z. 2 50 F or . . ........... . ...... 90c

... STATIC RECORDING HEADS A_allable onl), on eac:hange. Send old heed with o rder. 65-1.25. Mod e' X-26 . Crystel Heed . Siu.l% s ~ x JY4'. 65-1.27. Model X -2 &. A !! above. t'xce-pt ,dth Ra~ bracket. For KniJ:ht. \Vilc:ox Gay. lrt'llet"a.\ Il1dulitrit'S. etc. 6 5- '126. Model X-2!A. Cry~t.1 H"d.~. 1 ~ ~ % ~ :1%'. ti5 - 130. ""odel C-.t2. Cry.tal Head. Si.u, ~ x ' MI x Y.

~!lH . . ........ ..... .... 56.76

Complete Selection of Recording Blanks

HIGH-QUALITY PROFESSIONAL BLANKS

PRESTO DISCS IIGREIN SEAL" GLASS BASi

!~:;;'rh ~I~~~~tf..v~~~no~~h !tides, Di~. give cri!lP cut with minimum of suriac-e noi&e. Moi~ture proof. ,1 04· thick, Shipped "press only,

N o. I 0 , • • I W t. 1 N ET ~~~ ·Hg :;:gg~ ~~. ~ :~: 2:50

OVERSIZI uGREEN SEAL" For makinf mUler record!. in process-

~~. J!~~~~~;~ l?;a:r~~bs~~~1; coated OD botb aides.

69-0.0 111 '(1, ' 1 2Ibo· I$1.2~ :;:g~~ ~~~: j :g:: l:So

"RED SEAL" GLASS 'AS! High quality discs. same a~ "Green Seal" J:laaa ha~ typt'"ll above except varit'tl from .075' to .104" in thlc.kncS8 (no thick.ness erlt'Ctlon pog1ble).

69-0"0 I 10" ! 2Ib,. !SO' g O 69-0"'1. 12' 2lbs. 1. 0 69-0"'2 16' Jibs. 1. 0

We c.n supply. I Presto Discs. wrtte for quen lily discounts.

AUDIO DISCS

M~~~I!~~I~~';O~~~o~~~~~~E rc- ~ cordinl" rCQuiremenU. GlaM base ,,"itb extremely smooth coatJn~ on both tl.ides aiVCA superior frequency re3pontoe and minimum surface noise. Overall thlckDess. ,062· , Shipped e.xPreS8 only.

No, Dle' l Wt. 1 N ET

~;:g~~ IT- It It!;' $ I :~g 69-072 Hf' Jibs. 2.50

"YELLOW L ... IEL" GLASS I ... SE Especially suitable for studios and ~hoob. Smooth coating on both Ilides .

69-090 I 10" I I ~ Ibs. Iso•80

:::g:~ t ~: i ~g:: ~:8g Write for Au 10 I.e quentin dl.· count. to schools, studios. etc.

GOULD-MOODY "GLASS 'ASE" DISCS

~r~~~t~~ :~~lrna:~i~~f=~~ coated. Excellent frequency rcsponsc. .06J' thic'o; overall . 2 hole l)·pe.

6 9 -050 10' ! I Vllbs'ISO . 73 69·051. Iz-' 2 Ibs. .91 69-0SZ 16" J I.... 1.83

SEMI-PROFESSIONAL AND HOME· TYPE BLANKS Suitable for recordln!! hOlQe prolTam~ "off-the-atr." performances of s~b and mu!\ic IItudents. etc. For usc witli all rKOrders. Recording time in minutes at 110 lines per inch and 78 RPM : 6'-1 Yz. 6!4·-2. 8·-J. 10"'--t!4. 12·- S!4.

FLEXIBLE BASE DISCS KNIGHT HIGH-QUALITY

~!!~~!.~~~!. jOd~~~pa'"~_~~~ base. UniformlY coated to mlrrorsmoothness. Non-Inflammable: Underwriters' Approved. Low surface noise. A"'uage "",'t . • 1 !-'1 lb:!. per pac.kaae.

No. I 01"1 Qu." . I NET f::~~f 6ft ~t:: ~~ ~ SO:~~ 69-1.52 10' P k&. of 6 .88

RECORDISC "YELLOW LAIEL" Pa~r base. non-inflammable di!ICS. Coated on both sides. Uniform thickness. A",. wt .• 2 It». per package.

No. 1010. \ Qu an. 1 N ET

69-1. 7 0 6~· ~ SO.58 69_1.71. 8' Pkg.of6 .8 69 _1.72 10' Pkg.of6 1 . 20

PRESTO "MONOGRAM" Paper ba!te. double-faced (l igh-qualtlY

~~ri~l:e~~i~:~. ~1i5! . p~~£; recommended for home recordinGS. Write for Presto Quantity prices.

No . Ole. Wt . N ET 69-030 - 6"- ----:rc;;:- 50. 20 69-031. 8' 60%. .35 :::g~~ IT. : ~~ : : ~8 69_035 I J 'h' 9 oz. 1 . 00 69- 034 16' 10 oz. 1 . 50

RECORDISC "ORANGE LABEL" Excellent qllaiity low--co~t diSCI! with cel1ulo!lie nitr.ate coatinJ{ on IJro .. :clllliCd paper bond base. Double·faced.

69- 1.1. 0 1 6th' 5 oz. I 13c 69-1.1.1. 8' 8 oz. 17e 69-1. 1. 2 10' 100z. 24e

'METAL BASE DISCS KNIGHT STANDARD

Non·inRammable even l.."'Oatinl( on both

t;:':=.J~" A'!.~~h~. ~ .• iOl~ thick;

6 9 -1.80 6Yt· 15c 14c ~12!!!.. 1~1~ :;:~:~ t 1

8;' ~~~ ~g~

RECORDISC "GREEN L ... BEL" Oouble - faced. e~nly coated nat dilJOJ. Underwriters' Approv~ coating.

69~;i. O 1 :~: I 1:~~' I ~~; :::~~~ It. U ~~ : 3~~

KNIGHT HEAVY-DUTY Quality di!tCs for semi - flrof~ional UtIC. Nitrate coated 00 ooth :.ides.

No. 11\1.. Wt. N ET 6"9-"i"3O 6~' 10 oz. --rae-:::~~~ 10' Ii~: ~~~ 69-1.33 12' I lb. 59c

RECORDISC "ILUE LAIEL" lI~vy ba.!l(' nitrate coated on both sidcs. For all semi-profC$Slon<11 U:lC.

69-.Z0 1 6W I IO OZ· I 2 0c-:::~~~ 1

8;' ~: 6:: ~~~

69·1.23 112' 1 lb. 67c

ALLIED RADIO CORPORATION. 833 W. JACKSON BLVD_. CHICAGO. ILL. 75

SHURE UNI-DIRECTIONAL MICROPHONES Overcome feedback problems. Unl .. dlreetlonals are dead at the rear; e liminate room acouat.lcs and background nolsos . Permit more volume and closer placement of mikes.

"UNIPLEX" CRYSTAL "UNIDYNE" DYNAMIC M o d e ' sse . Smooth wide-anRlr respoose from the front. dead at the rear. Coven 40 to 10.000 CPS. Output. -55 db. Satin chrome

~~~!:~: Ne~ddsi~~I.t:~9~ig~ "J-~! wide. J '/z' deep. High Im~aDCe model. For input drcuJu of 100.-000 ohm. or more. With 25·ft. cable and Internal transformer.

~~·:~~'a'~NET ... S29. 11 Mode . 5SA. 35-50 ohms.

~:T3~7: .... . ... S27.64 M ode. 558. 200-250 ohms.

~:T~.~ ~: ........ S29.11 SHURE 556 SUPER-CARDIOID DYNAMIC

Sa~ apprarance a~ sse above. High!y unidlrectlonaJ. Re~ecta .,und

~~dr!~d~r:~Oi,!:sb~1.i%~~~~d~~:I~'\'lil~~~!I~{g'viD:p~fl ~:.~ immune to vibration and \\;nd. R~pon~, 40 to 10.000 CPS. EquiPJM!d with IS' 9hield~ cable. Standard 5,4"-27 thread. ShpK. wt .... 5 lbe. 99 .. 367. 556C. Output. -55.5 db. Into 100.000 ohms. 99 .. 366. SS6A. Output.-83 db. Into 35 -50 ohms.

=:;.3lA"C ~~~.~: ~t_~~~_~.~. ?~: ~~~ _2.~~~?~~~1I:. S44. 1 0

SHURE QUALITY CRYSTAL MIKES MODEL 708A. PIG . A . MODEL 7A. PIG. e.

Semi-directional type with I!Imooth wide-range frfilu~ncy ffllpon8e of 30-6000 CPS. Output. ----49 db. Dir-cast ca~ 6nisht'd in irid~scl!'nt

~7a~h,;;~~ .c~~r~~ !t~d~m~a~;: ~:dl?j~N ET ... S11.47 99 .. 364. As above but ",ith 18-foot cabll!'. N ET . .. __ . _$ 11 .94

MODEL 7 17A. fiG. C. [)('p('ndabll!' crystal halld-mkl!'. Ideal for use with Homl!' RecordI!'U. Window Dl!'monstratIon SYIItems. Paging Systems. Amateur Radio Tran!lomitter!'. etc. Plastic case. 2~· diam. lI: 6". Smooth n:Mpon~. suitable for botb voice

~r!8t"t:~!~al?dtRr.!.'or~~s~~: mrchanlcallY isolated. With 7-ft.

;I;~~I!':~~~I!'[~ . ~~: .. $ 5.85

A n~w economy microphonl!' hav-

~~ ~~~t!':.a;:tl~r:'8"tt: lCri&x; CP~. Output. -53 db. Idul for PA lrutallatioru. cal1-sY8t~m!l. etc. S~·_27 thread . With 7-ft. cabll!'.

~:.-:~~~ .• NET . .. . . . S9.70

99 .. 351. As above. but with 12-ft- cable. NET .. . . . . S I 0. 5 8

MODEL 707A. f i G. D. Iridl!'8«nt gray dlrca.st cur "'ith bJ~hly poli sht'd plaling on front

r;l!bc)t~~~~ !~:::i~.~~~i; ----49.7 db. Standard 5,4"-27 thrl!'ad. Diam .• 2J;. ... 5" oVl!'ral1. Moisture-

k:lll~i!::i~awm;II~~~~-:-:reid: gt9c .. a:~1~~·t?I.~~ .. . S7 .35 99-362_ 707A. A" above. but with 18' cable. N ET .... . $ 8 . 2 3

SHURE "100" CARBON HANDMIKES Single-button carbon type. Widely u!rd in Police tranamltte'rs and other eQuipmrnt n~ry to Ihe War PrnRTam. Have ez~lIent respoa.~ for cJrar voice rrprodUC'1.10n . Ught. sturdy CIDM" fila

~1f:f.1:d ~c~dn~I~lp~~~ro-~kk~~.;~~~h\\~..g ,"u!lpenAion hook and brackn for wall mountIng

;~ .. 3 ~~. ~O~~." Rt/~ti;:'ISp~.rn;t~~"~t~: normally OpeD. ba5 .. paratl!' Il!'ads. 99-369. Modl!'l 102A. Motorola type. DPST

~~~hi~c).i~.~ and rrlay . . ... $ 14.70

COMPACT LAPEL TYPE MICROPHONES

fl g. A. Shun 76B . tdeallor leetur~na. Small in siz~. I %c. dia. Liaht weiaht. onJy I ~ oz. lias

~~~~~:~. er~'; ~~~~h~V~:: r:. conllpicuoUIli. Compll!'tl!' with

~~Ja~~~p~~~~~r (e::bl~ ;';;':'3;~·: ~ ~~ ... S 14.70 FIg . B. Unh., .. I. Singll!' button type. 200 ohms imJ)('dance. II"" 10w-bilUl carbon button and pur~

t~~~k~~~ft~nct:!. ~:t~~r~!.j8 db. Scre ..... terminals at rear. Only 1 % .. d la .. Yz" thick. Net wt .• 1 ~

':9~lfo.'1i·E~.lb ..• S2 .40

ELECTRO-VOICE VELOCITY MICROPHONES F Ig . A. E IKtro-Volce V- 2_ Id~ for uS(' whrff widl!' '""PODS(' with 10\'11' feedback is required. R~spon!tle is t"S.!ICDtially flat from 35-11.000 CPS; OUtput. - 604 db. Ca~ d~si!n elimJnat~s CavllY r~80naDce . Cradle mount-':~; ... ~~~~ ~~~d i ~~:d~nfc':.t cabll!' and on~ switch. S~R' wt.." IhI!_

99-331.'0 Ohms. NET EACH .. .................. 22.05 Fig. B . Elec t ro- Vole. V .. 1. Combines hi~r.quaUty J)Miormance aDd

~~trn~ C'JS.PO~t;:rl~~i~~-:b.~:c?27 8ti;~':~d . ~f:,~ a:bll!'mil~ connector. Guumetal finish. Has buUt-in !lhoc:k-a~bI!'r. Wt .. " Ills.

:::~~~: ~ol gJ'hl':.~·~ETcEACH ..................•. S 16. 17 KNIGHT-ELECTRO- VOIC. DYNAMIC

Fig. C. Hl!'3.d has fixed tilt of 22° for proper U~ b)' s(X"akttlli or \"OC1lJists. Fiut'd with special acoustic baffll!' for u~ \>,;hl!'rc directional pickup is dnlred , Frl!'quenc), resp~)n>:lC!' i!l 40 to 10.000 CPS; outPut I~el i.s - 55 db. Light gunmnal finish . High Impedance. \Vlth 12-foot shil!'lded .. -"able.

~;-:ii~~~E~~'.)~ ·. ~~: .. ~.I.~: ......... _., _ ..... ..... $ 13.23 ~--

QUALITY MICROPHONE CONNECTORS Lamlnatt'd baitl!'lite insulation . %"-27 th~dll. Av. IIhpg. wt .• 3 oz. 41-955 . F ig. A. Mall!' connector. Fih 41 -951. NET .. ...... ... 2 4C 41- 958. Fig . B. Fl!'mal~ with coupling ring. NE T ..... 29C

~~.9~t~ '4r_I~SI~~f~fua~~8 ~~av:: hr:fe~n~ ~~~~ . ~~~~~~r: . ~.~~-~~or:r~ :0~-~~ :'~~t~~gChO~~it!14~Slb!~~~0~~tT~~ . ~~~~~. ~n~~ 41 .. 967 . Fi g. C . Like 41-966. but shorting ty-pe. Rl!'quirn; % .. mount-ing hole. Pu\'eDts Opt-D drcult hum. NET . .................... 2 6C

:~ ::~~ : ~::: ~: ~~~';::0~:~7it:7t[~~"HIH'£;- ........ 5 9C 41 .. 9 72 . F ig . F. Three-circuit chaAAili C'Onnrctor. F("male IY~ . Fit:olo male plug 41 -971. above. Rei:,uil'1's lh.· mtg. hole. NET . ........ 29c

SHURE MIKE "ON-Of'" SWITCHES 4 1-930. Tyfl(' AIJA. Plug-in rotary

m~!f::'Lo~~~I~~D:Oi~:l!r.~N~'k~J~ Fl h all mike litand!'i with 5,-i "- 27 Ilm"iI~. :::-:.'. ~p:,a!.il~~ /irbH~oNmE';-~~.i~~~~2 ."35 41 - 931. A84A . A ll abo\'e but has "Prrt1 to Talk" on-off llwit.ch . N ET . . S 2. 6 5

76 FOR VICTORY BUY U _ S_ WAR SAVINGS BONDS AND STAMPS

~C:n~~ s~~~~~~lb~:'~~ a;rgi~~;~~~Di~~~~hol:~r =~~i'i'~:ii~ r<l:n~ . . Euily in~tal1ed without tool!. Up to five Kontak mike" can be Wired In paralll!'l for complete control of all orchestra instruments.

~~'\~t:hi:~~:~~ r::~mi~r~ kOR6~p~r~~J1:re~:'~d'~~t ~~'!Ji6 mOst radiO '~ts (aftl!'T 19J5 ) or with low-&:aln ampUtier!. With IS-loot cable. ~ volume control. \\"t., 2 Ibs. Sec below for aCI.."essoriell.

:;::g;: ~':t~ 'H~h"'O~~~~~' N[T EACH . .. . . ..... . .•.. $7.06 .99-.08. F ig. B. KKH . Like 99·406 but ,,-jth volume control. lIill:h ImPl!'danc:e. Has 25-foot cable. N ET. . ... . .. . ..... .. . $ 1 O. 58 .:1.-900. Fig. A. Foot volume control. 21be. NET.. .. .$7.06 .1-901. Kont.k CI.mp. Clamps mil.:e to iD.!lt . " oz . NET .... . 59c .:1.-902. Kont.k Str.p. For Bat-top guital'!l. 4 oz. NET .. . .. . . 59c

ECONOMY MUSICAL INSTRUMENT MIKES

Fig. A. Can be used on any IOUNcal imtrumcnt . Reproduces vibratiOD$ a" in!'truml!'nt i" played . \Vill .... ,ork with all amplificrs and m<hlt radio :K:t:l . RcsJlOn.!IC. 80-5.000 CPS: output. - 28 db. IIh:h irnpedance. \\lith volume cOntrol and IS·foot cable. Size. J" x •• J[

.'% ... EOUIily mounted OQ body of instrument. Shpg. wI.. I lb. 99-520. NET • . .. . . ..... ..... . .... .. .. .. .. 57.06 !:~I~ ~Z:. I~i~; :t .. as~%~.bS~p~~wt~.U~li~~ NEI¥~~ .. . '5. 29 9.-025. Bridge Clamp, Sbpg. wt .• 4 oz. N ET . . . .. 59c

MICROPHONE FLOOR AND DESK STANDS

STANDARD ADJUSTABLE Fig. A. Tell!'9(-opin~ UPPI!'r !l«'lion is chrome finished: adjustable from 35" 10 68"'; ~/. · -27 lhrrad . Low!;'r ~tiOD is greY I!'narul!'led . Nl:'w " c3sY'Rrip," posiliv l!'-aclion clulch. 10'" diamel~. 8 lb .• thr~ ' !'tep basI!' is finished in grl'ycrackll!'. A hiKh Quality stand 31 low cost.

~l:':~~~'iUT .... . 54.25 DELUXE ADJUSTABLE

Fig. A. Chrome-finished al(Om ad jurt~ hom JS" to Wi has "~y~riJl" ('Iutch. Thrc-e-sll!'p to-lb. ba~. 10'" d iam .• i!lchromc·6.nishcd.

ht!:k ~~~I .·~~_i7n t='J~~~ in profrssional 3p(J('arance. Shpl; .

"'--Il'::' NET .. . ... 55.25

3-WAY TAKE-DOWN Fig. B. For uS(' as t·,· banquet .tand. ·U- or Sty floor !JtaDd. GrI!'Y ba....r h a s red enaml!'l ri nJ: . l.ower !Jtl!'m i8 dark Il:ft'Y; top allju~tabll!' 8t'Ction i~ ('hroml·. tuIlia .• 8-lb. ba~ . %,0 · 27 thrt-ad. .t:a.sy to take down and assemble.

~o~l; AH~ .. .. 54.95

LIGHTWEIGHT ADJUSTABLE Fig. C . A li~htwciKht stand for portable rrcordcrs. P A :I}'lItl!'mli. etc. Baked ('n.unel stem and basr-; with locking poshivl!'-actin~ clutch_ Te1l!'8C'OpinK st('m estl!'nds

{~:aJ.J~!~ l.r;: b::::.d::1n ~~.!~ ;::0~t3. t:EI~ ... _ .. $3.10

10' DESK ST AND Fit. D. A popular dcsk·ty~ mike stand . Stl!'m ill chrome 6aisl.J ; heavy l'd:lt-iron base is t\\-o-tOnc finillh of Kray crackle and baked rl!'d enamel. Standard sJi · _27

~4e~~O~'.t.N:+~: . . ~. 1.30 9.-006. As above"] but in all chrome finish. NET . .. . • $ 1. 7 5

TAKE-APART STAND Fig. E. A handy low-('Ost 8tan,I for desk or halld usc . One twist of thl!' handle locks itlM"Curl!'ly in baIIC for ~ 33 a table IItanri. or rrlraR handle for usc in hand. lla~ ml!'tal

~~~~ '~2~,.a~~:. :tll!'tg:~~J~ B~ diameter, -t y ... _ 5~t1· bandle .

~l:J~':i. NET ... . . 51 .09

ASTATIC MICROPHONES

@ QUALITY CRYSTAL MICROPHONES MODn T-3. FIG. A.

An excellent wide-raDlI:e c:ty:ltal lDike. R~:lpon:>e is substantiallY unifcna from 30 to 10.000 CPS. pro\iding ample rangl!' for all .Pl!"C'Ch and mu~cal r~uirl!'menta.

fi'c'!.'SU:r~~dl!'~ ;tf~li~e 'm!!I!!n~ controlling acousticfel!'dback. Bullct-tyPl!' COL'\('. finilJhed overall in

~il~i~T.:_f~0~cld5~-~bl~~r~; ~~~~'J~·~i~: .. $ 14.70

MODn n-30n_ PIG. c. Snni-directional ayatal type. Pro-

~;. l~po~:tf:::n~ t~t ~ cps; output. - 52 db. In a COlDpact. two-tone opalescent gray finished case. threaded s~"_27. With IS-foot cable and CODCl!'DtriC conDector. Wood hand II!' ana Intcr-lodooK metal base included.; pennit usc 33 desk or hand micro-

~h3~3'0~~" NJEt~s: 59. 11

LOW-COST MODEL no CRYSTAL MICROPHONE Astatlc's newest addition to the

~~~' -hc!~ ~~~d:~~ne a~el~:e:lde:! rt'Kular pubUc addre!l...~ USl!'. Fre-. QUeDCY reapon~. JO-6OOO CPS.

l:: ~= t;:bkio~b': ~~~~ High output; - 52 db. "Floating ('anridJ;c" reduccs t"fleet of \'ibra~ lions tran:lDUlled through C~ or gland. lIe3vy die-ca21t cartridJ;c housing. Equipp('d with wooden hOUldll!'. 7 ft. shil!'ldcd cable. and

~~'~~e~t ~;tb~n~a~i~.a~i~ ished overall in rich brown hard en3ml!'1. Shipping w~ll:ht. JIb!!.

~l;.~.1.0: .... ...... 57 .35

MODEL D-l04. PIG. I. Made es~iallY for voice repr..>duction. CO\'t"fS entire 8ptt1.:h

5~g~0 \\~~~riSbnp\.r~~uf:g:: level. -48 db. Shockproof mount'nfl- Quality Dot affected by clo!le

~~~f~hd~~~ U~ 7fif~·::hi~j~ ~a~I~3~~': 2~'Et ... $ 13.23

MODEL N-30_ PIG. D. Fca tures rJ[~tionallY smootil rc--

i!;oe:~~~d ::;:~~~.! r~rrJ8.t~~ CPS is :lub:ltantially flat and {ree from peaks. OutPut Icvel. - 52

~~-ivcri.tdj~:tabkforhdi"';ll~~ ?~ed~~~~~~i:.ac-o:~ltt':fc c~~~~ connector permlla Quick tnter~ chanltc of cable. Case. 2· diam .•

~~~ °H~~~i';t~;j";i~I~.;t: ~~:303. NET ...

5 10.29

ASTATIC MODEL DN DYNAMIC MIKE

A seml·direct1onal, al1-purpo~ dynamic microphone. Has "umtary" mo"inl{ coil together with Quality Alnico magnet!'!. R~ nance ~ks eUmlnated by.pecial

;~taD~tl~Ulka~uf~~;eaJcr.7~ CPS. Output. -55 db. TiltJng head. permit..s Sl!'mi- OT Don(Jlrect!onal positiomDS:; for tw:llt pic k.Up. T, .. -o-tone Opall!'1lCl!'Dt Krey and ctiTOme6nish. \Vithsland-typc pluJ: and coDnector. sprinR ""able PrOtector. and IS-foot shil!'lded cabll!'. Has %"-27 thread. ShPl:;.

;~·-~~~~ HI h 51 3 Imped.nce. ~ET 3.2 99-305. 50 Ohm • . . $ 11. 76

CARBON MIKE ACCESSORIES 4 S- gyO. No. 100 ~izl!' carbon gT3nul_. \Vill fill two buttoD~. NET 47e .1- 99:1.. Set of 8sprin&~for mounting mlke in ring boldcr. NET .. 17c

ALLIED RADIO CORPORATION, 833 W_ JACKSON BLVD., CHICAGO, ILL_ 77

CL·407 DELUXE PICKUP Lov.·-pn"~ure crytctal pickup with ba..<dcallv dift'erent de"llia:a rnult. ia D~ cooce-Pt. 01 pe'l'forman«. FuncuonaJly<urveci 08-«t arm a:Io:IUre8 low traclLlnc rTTOr \4i.th bal.aced 8idewall preNUI"e. Nll!edle pr~ure I.- 1'.4 ouo<..-c! for lonlter D~dle and record life and le55 surfaae DOi~ . Die-<ut pic.kup arm will aCl."OlDodaU any ~placeable needle. Fund.bed ~:ith both .Iotted .. I . 'rew and thumb n~lc krew. Ran"e:

~ .. ~~a!~~Z~ir~~~a'!~· ~.~. ~:;r ~i: lance, 8 Inches. Finished ia rich maroon. With .~ldrd cable. Shippin& \\t . , 21t..

=:T~.~-: ................. S5.88

ASTATIC TIIU·TAN Flg. A. A hlKh-qualhy deluu crystal "hODO piCkul; of the

~~,~~=~t gJ:t o~.~~ h('ad always allooou'ftI COrT~t rlof'CI'Il~track.in" for IIIIPro~ rrProduction and lo\\'ft' aur-1::K"r DOi __ . Rt"3pon~ • .sO to

~~ o;r~ut~~~lr:a~urS V. acroy Yz mc£Ohm load. W1th B-2 cartridae. lA-neth.

~~~~ :::t~.tst~:: !.~~hl: 65-112. II-lt. For lr

:~: •. l~T~~-. S 1 0.29 65-1.1.3. 8-1&. For r.cord. IoIpt.U-. HET .. SI3.23

MODEL AB·e Fl,. B, A cry,tnl pickup de-aianrc! to pro\'ide better reproduction and lowtt _urface nol~. Spring "':11 cu"hion r("(1u«1l dfeoct. of 3.IIy motor vibrauon. R_pon.ar. SO to 5000 CPS. Hf'ad ill otfar1 for proper lracldnl. Needle pnw.ure. 211. O&'b output VOIt:'fn'

~~~~il~·"I~ham~car:tdf:;.u~ pt'rmanrnc:e. "For all l()..locb or 12-ioc:h record •. MouaUng <:'enter dl1'ltaDC£, 8 Inchf';S. Brown .-tatuatY fmigh. With .lulj:le.eooduetor shIelded

~O~~r.: t:;~h~" ~~t .. \.e~e: =~;'·.~~· ....... ·5.88

SHURE "HI-LO" CRYSTAL PICKUPS

MODEL KL·407 S,uniy dle-cast pic kup arm ";lh oll~t cry.tal head a.:uuree mirumum tradlin'!: enor and "wi att noi ~. I::uy to load

f~~~~~~ti~~-~f~ 10- to 12- record!!. Rrspo~. JO to .. SOO CPS. Ne'edl~ pf"eol.'Iure. 1 ~ oz.: output vohaa:e, 0.6 V.

d~le ~ .hi~~m !;!~~ ~~~ =~fM!~FW!h~~ t~ I~ rooD. Sh~plD.& wd"ht... 1 Yi 1tM.

~fyl-.~ .. : . ..... . 13.82

ASTAnc CARTIIDGI SERVICE

~~ri:,~f ::ri~:la!i~:"c:!:d~~~~~a~ ~I~ Ix credit. YOlp' old uDh 14ill be ft':paired or replaced. Cann,lee .hJp("M!d. i5 luaraDteed.

Stoa . Mod.' ,.11 · U .. d 'n NET No. es-lSo "i:i'-6 A Fr·8 54.70 eS-1S1 Lp· 21 A Fp· 18 4.70 U a152 l..p-2J A FP-.l8 4 .70 U-lS. I..-lZ C .. \L-8 2.94 ,S- UO 1..-24 C Record c:hanl:ete

2.14 U-1 SS 1..-25 8 FL.-58 2. 4 SS-IS1 I..-Z6 C D9·SLB 2. 5 IS-ISJ L-4O A FL-48, CL-407.

KL-407 2.35 U-l" L·~ C Record chao~r" 2.35 15-157 M-ll C ()'7 2.94 u·n. B-2 0 5-8. S-U. 8-10.

8·16. AB.8. A88M ua 55-15' 8-4 0 Record c:hanleu

16" LOW PRESSURE Low Pno.aUft. CFY"tal pickup y,ith permanent ~~phire !!tylu&. UP·16 oUt'iut •. 85 Volt"; rance,

:~\,~u; r~oS·e . ..u:i~oOOutppai Couftlcr-bafaaced arm 'or needle- preuurr of only I ~ a.'lllur~ mall"iaaul'D record ute. reducer! nec:dl~ hi", •. For record.

l:h~. ~u:~='14il;h~:!:ld:J ,--able and arm reA. Fln.i~hed la rich marooD. Mtf:. «nter", 12 luehell . Gives r1l:cePtiooally faithful rrproduct..i.oa.. 2 Ibs. 85at.08. Hpa".

~:::'?~·ACH .. ·14.70

Cry"tal pic:k.UJ)6 01 entirrly DCW ba:!.lc: d~an. Ha\"e high outPUt. 10"' prrnure . New bcariu~ 8t"at$ OV1'!rcome "ploch" rffect. Off8et hrad corncu traCking e-ror . The f'ftulu are ioatantlY rtCocrU.l:able in the :cuperb HUSH HIGH.fIOWTY PICKUPS

~~~a~~~ to an ab~lute minJmum. andrecordlife"l~ matmaJly. PIa..tJc rna-

~OSi~~y or'f"',i~a::,hd!: for record. up to lY diu .

ungth. 8'.ti-. Mounu III VI- or 'A- bole. With .hielded cable..

!!-:::t~ 'b::~:~ !~I!~«&':a~::t ~~lst~l a~·:~c.C~~~~e~ D.nce. 60 to 7000 c./,'!!' Needle pr~UN!. I ounor. /lor PtttDanent ty~ needle.. UIW! 0 M't screw or thumb lK'.tew ~t!'l chanlf'inR

St~~ wt~.t~IU!.I:~'Ec::.~~. ~~,~. ~~~~~~~ ' ...... ... : .. 53.23 85-303. Mod.' 'SA S.ml-Lo·Prusu,.. Pickup. Same at! Mod~1 97A. above. but h~ 2-oz:. n~le pr~ur~ .. nd J V. output at 1000 CPS. For u~ with any r~mov3ble n~'e. U~ W40A cartridce

~~::~v~'~.·~~~t:T~.t . ~~.~'. ~~u~~ .~ 3.".~ .~~ .13.23 SHURE CRYSTAL CARTRIDGU

65-352:. W U A. For Shure 971\ and similar l,i~1r:up8 with 1 oz:. prrsaurr. I~ needle. Wt .. 4:~ . H IET . . . .. . ... , . . ..• . 52.35

:~;.!:! ~ :o~~~ri::;p~~Ujv 9~~a~~~~a~~~~u.r .• ~~2 ~l5 !~::~~I~ .. r..ei.f."t~,;:-I{~t~~t'~I~~~~t~~~. ~o.r . I~."srn 65a354. W20C . R~'.lC?ment nylltal ~rld~ for Shu", 98A. QSAW, 99<:, and 99CW crystal t'lickufl::! . " 0.1: . N£T ........ 52.35 Cartrldg •• aN said On •• c:hange basis. Send old c:artridge with .,........15c: a.dlt allawed. Your aId unit will M repairocl or ,.placed.

:::!'n:L-~:t ~~::I :~:skdf; from 5()..6000 CPs. tIlillht ri~ to 10,000 CPS. Sapphire stylull 1-0.1: . necdlr pr~urr. For 10-'·12-

~-~~o~ l!:"iT ... S19.40 ::~!!~~':fo~~C\~r~ i,t~li ~47

Brush Madel "L-H. Cryst., Pic kup. Needle pr~ure of 1 OL OINCurea leas reot.'Ord wrar. I.lcp

=!e,:caKfthir!ttflhl)~Ug:i:2.:-u~~ from JO..6OCK) CPS. H_ slight

. ri .. to 10,000 CPS. For to"· 17~· tft:'Ords. Taupe fiabh.

:;:T~()·: ........ '26.46

78 LOW P RIC E S. HI G H QUA LIT Y. BE S T S E R V ICE

QUALITY PHONOMOTORS

SPECIAL VALUEI

GENERAL INDUSTRIES PHONO MOTORS KNIGHT IIIM-DRIVI MOTOR

HEAVY- DUTY BLUE FLYER Mod~1 E. Hea\·y-Duty 78 RPM i ndue-t ion -t ype mOlor for recording and playback. H~ wc-iJ:htro 12· turntable . Speed rontrolled by lever-type regulator . 7~" L.:I J~' W . lt 4~· below plate. For IIOvolu. 6Oc:y.

'i:~~i~t5!5,.trT $15.45 8 5 -226. Same as above. b u t

~~~~t~~b,~~~:i:~ S 12.90 TURNTABLES ONLY

MODEL LX 111M-DRIVE A Mpl~ndid value in a compact. dependable 78 RPM rim-.driven.

;If~~~~~~b'~. i';.1~~~Oins~f'a~~ for quirt operation. W ill DOL ov~rh~at. I>rive pull~).'.idler. and turntable mounted ia o ne plan~ for pn-fect ali gnment. 2" d~p ~Iow mounting plate. For 110 ,·oll , . 60 cycl~ operation. Shpg

;~_;1~!J5. NET . .• 53.33

IIM4 RECOIIDING MOTOII Rim-drive h~a\·y-duty motor with 10" weighted turntable. Ex· cell~nt for recording or con~tant·s~ playback . Selfstartinf':' dyuamicall:v balanced motor 15 rubber insulated. Oil -1{"S8 bronze ~arinlo:!J throughout . Depth below plate. 2 11 ..... . \ Vith mounting plate and hard ware. For 110 voll8. 60 cycl<'S.

:'::2;~: '~~~· .. $7.38

Here'!! a n A LL IED tr ade!' we are proud to ofler. Sturd Y rim-.drh·~ motor at a p rice ~ 8C'n$ltlonallr, 10\\· that it 111 the most o u t -

:~~ino' \~~~p:~t\~~=d-~?~~~~~~ ~rUi~ ment . Th~ 9'" turntable il!l rim-driven at 78 RPM by a constaDt-llpeed M'lf-8tarting motor _ Sub!ltantiallyuniform l!lpee<i i.8 maintained ~~o with variations 10 record draa or lioe volta~. Motor .. shock-mouDted to pr~vent Vlbration reaehing t Ul"lltablei

~nv.l! r\v .Q~2\,:peD~t~~owSi;'~:te~ ~:r L j 1 0 8'~t~4~0?'~~T ~~:'. ~ . 1.~ ••• S2 e7 5

For u:>t' with all GreC'D Flyer and Blue "Iyer motors. Average shps . wt. 4lbs.

FAMOUS ALLIANCE MOTORS

~:T~~~: , I,e:. t~rll~~~I.e . ... S 1.05 8 5-23 :1.. 12· turntable . . . .... . 51.50 85 - 232 . 12- ~iehted turntable. Sturdy . well -made and accurately balanced . N ET . . . ... ...... . S4.05

MO D EL 80 RIM DRIVE MOTO R. A d~ndable fle lf-::!tartin J.:: 78 R PM frictio n -drive motor suitable for most rttord playing nreds. SturdY motor with O\'~rsize bc!aringl' hag fo~J v("ntilation and ex~Jlent rl'KUlation for uniform 1I(l("("d . ~Iotor and idler-wh~1 plate are rubbcr·curdliooed for Quiet o peration . With S· turntabl~ . Size: 4~· L . x 3",· W . x 3'A · D. below

~5t~4 l3~ ~1~T~·olt !J . . 6O .CY.c ~ ... ~\"t .. .. ~ .I~~ .. . S3.23 69-500. Auto m .tlc S t o P. F or U!IC with all G. J. T urntables . . . .. . . $ 1.08 69-501 . Autom.tlc Stop. For 8· , 9"' or 10' tur ntable,!. NET . • .....• 72c

85-. :1. 5 . Mod~I80. for 110 volts. SO cyd es . NET .... S3.88 85- .:1.6. M odel 80. for 220 volts. 6O cydes. NET .. 3.88 85- .:1.7 . Model 80. for 220 vol ts. SO cydes. NET •. .. 3.88

.. -~_ STROBOSCOPE -~~=~ Ch ec k s 7 8 W aDd 33J.i :;.. RPM ' !>«d.

=~~ :~~ E:o~o~ f~~~~:n~~b~e R~~~!:~a::!~tac:r:!~:J: ~J:~~ f:';~ h~~:g:U~3r f~~~ o~~ti~~ti~~~~~nftOroe~ heatlq. Size: 4 1 .... . L . x 3 ",,· W . x 3 Y4 · O. below plat~ . li as E~Dtial for

~t recording and play-back results. Utn di;a.. Usc under neoo or incandescent :~~~~O~leN l-i~. ~~~. ':' : ' . ~ .c.~ ' .. \~: t: .. ~ .~".~s: .... $5 .50 ~K:~:18? fl~T.·. ~~·:.~~: ..... 7 c 85 -.21. Model 60. \\itb 10"' t urntable. NET . ... ... . 55.82

SPEAKER BAFFLES AND CASES DELUXE WOOD BAFFLES

Fini::!hed iQ hard wood walDut veoeff. Gn lie is prot ected by reiDfordnR: ban. Size: 1611,· high.

~~~I d::eat6~;. d Wt_.atlObib::

:;e~~~::: ~~T~:' .. $4.65 93-501. F or • • SPeakers . 12·

~~~~.~ 5~ . . 6Ib~: .• S2.7 5 • 5 - 845 . BaHl e mounting kit . Con~ishl of t\ .. ·o 8C~W ~y~s a nd

fb~ ':W.i~ . ~' .. ~~ .~~~~' . . ~'~1 S~ DELUXE FABRIKOID

W~lI dC':UllIIed bam" finished in attracti ve taD fa brlkoid covering. Sturdil )' built of lW'lected plywood to prt",·ent rattle. AUractiv(" black and gold grille d oth. Wt. S ib::!. 9 3 - 51 0 . For 12-lnc h "pkr" .

:.:~ ~:X l~".\\:- .X .<Y .D: $ 3.25 93-511. For 10- spkn. 14·

~iK3';p~ 2·N,~~e .x . . . • $2.70 93-512. For I · spkr" . 11 ·

:!)(~'l.~P~ :'~"[T"i.~C. ~ . $2. 1 0 STANDARD FAB RIKOID

EXN'IIC'nt for all indoor In"lallatlon!!; p aJ.:: l ng "Y8trTII!l. toIchool roomt'o !ltor(,!I . offi~. auditoriuml'l. etC. \Va ll mounting type. Provid~ Cfh"C'nuo:r over ~rf'at~1 3rPa. Huilt of I'IlronJ:: plY9o"ood c:"on!n.-rl wilh dll r:l blr dark hro~"1l leatllerfOur. Iit.i ~:d t;Onl'ltrll~tion througho ut. AVl'r:ll;e !lh~. , .... . 61b!l. 93- 520_ For 12" " p ku. 11·

~~~.lt ~ ~'.r .wid~ x .8". S2. 1 S 93-521 _ For 10" "pkn. 14· 'I:

l.'~.; ' ... $1.95 93- 522. F o r S" ~pkn . II " lC ,U~ " x tJ· NET $1 . 7 0 93 - 523. For ' " "pkn. 'J. \: 8" x 5·. N ET . . •....... SI . 49

SINGLE SPEAKER CASES Of heaVY plywood. Removable back . Rub ber feet. Hand !lOmely covered; "" ell built. " 't .. 91b8. 93-801. F or 12· s p ea k e r.

l~: ~:c~ YN·[~~.~~~· . 54.50 93- 602. Fo r I I sp e eker . 12~· s 12 1 .... S 9'h·. Will al .!IQ

~~i6~~lg~~f:~·~~~ . $4e50 Ou.1 sPe.ker ca"e. As a bove • but for two Ir llpea kers. Divid~s into separate units which aerve as baffl ",". Siz~ insid e: 20 x 12!-. x

~'-i:·6~k '~ ~';· .... . $6.85 SPEAKER-AMP. CASE

For Kni ght 14 or JO watt deluxe amplifi~n and one or two l2-ioch IIpcaken. H~avy plywood COQIItruc:"tiOD: bot h parts M"rv~ as

~~~~\ :~~.!:bf~~·~lf~~r~::~ P o.-\. sYlltem. Inl4.idc sizc: 21 \.1: . s

~8i~~~~~· ·Ni} . I.~: . 58. 15 AMPLIFIER CASE ONLY

For any ' 42 or ' '' 3 Kn ight amp li f ier . Hal'! com pa rtm~nt for mictophon~. cabl~ . etc. 11('31,')' pl y,,"OOd cov ... red with airl)lane lug-

ig~. c~Otrb ~~:Ut\'\.~iZ{5 ~t!...~'1 x

~ :T~.04 ... . .. ... 57.1 5 PHONOGRAPH CASES

O f 'lluniy ply wood to \\ilhlll a n d lon~. haftl U,.aJ;::r. 9.1-605 ha...'l !lloraif('" COmI13f1m('nt for about IS rec:"ord!l . Blank mOlar board. II andliOmr airplane-lulol:~aJ:::(, fini!lh Wilh Ian IwC"Cd ... lTect. In!loidr ~ze; 16\-i " x 13" x 9~". W t .• 14 1b5... 93-605. NET ...... . $5.75 93- 606. " ... :\blwc. bu\ :\N"Ommfl".!.· .. 1",1 I.honn mulor:'!. SizC': -'C, ~-, - 11t .. • It .,.- . I.f"M r t"COrd

~.I.'~:S'II~~n~· E~~I:~:. S7 .3 5 ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL 79

BIB PROJECTORS '" TB1rMPITS

KAINER ECONOMY BAffLE t:.t""m~ly rUKKed. 2.piK~. t:" .pt"ake-r battle:' "pun froID 20 ".lUKe alloy-metal. Ha!l.crr'eae-<i br~.thf:r for efficient bac.k ·prf:!Io:U1re rrJf:~. ·'Air-Foam·' In.ulated. Overall

~~ttri· ~'!:·e. t~I~~gi:~~untli~-~ brAcket b .rcun::I)I' "" .... Ided to Lafft~

t:e~h~::~~t %;.~t~~Ck~~ ilnd !lJW'ak~. UIIIH 95·207 ero\v.

~t_'2~O: ~~T~~~·. 57.95 95-207. Adju.tabl C! CTOwfoot b, .. cket . NET . ... . ...... Sl . 62

KAINER DELUXE Eztra rul.tRrd. all· ... tn-I projector batflt ... ; for .. ny 12" aPl"alr:.er. Spun from 2O-2all"C: IIt~1. Has 8CT~ned

~~tt~~r~:. J1«!'AIr _ ~:-a"m·P'"r; .ulation. Ov~raJl I~ns:th. 20-; btll

~h~!~~ r!~·~·ft:t~.IB::~d Ir~·Y wrinkle 6niah.-~ bra.ckrt . S~PI ' 9'.i·-~~"5. NET . . 58.95 95- 208. Ukr Q5 ·20S. but ",-ith .ulI~na.ioD eye-rJnt.!~ Inlitrad of mounLJnl fiatWIt . 8Ilu. ,. S8 . 62 95-207. Adjudtdbl~ C1'o\\'foot IJr .. cket. NET . $1.62

JENSEN PEltI-DYNAMIC

AIMOUD CONE BAffLE AlI-tlt«! proJector baffle few widt'beoam proiectioD. Take .. any 1 r lIpt"aker . Bdl. 17· dl.. Overall lconKlh. 2<T. G~)' tini"h. H;,u "u ..

~~ (~~) rot;:a,i·~~au~!· t~~ ;~~j'O~ . w,.·d~ ~~ '. 57 • 3 5 81-580. R.('d~ ria .. for u_inc S·iDeh .l)ea ker iD above t.."Ie- . 81 · 581 . Reducer riDil for IIY. Sp:aker. [ACH . ........ SSe

93· 303. BAFFLE MOUNT. Bracket for abov~ NET .. $ 2.35

KAINER TRUMPn For dill' ant .ound Pl'o;«don. Iak("1l 8- driYrf unit . AJk", ,,,

':::t~~~~~J~,.jlto:ti.~U::..u:!"f~: i;t~h ~u:~:m, tl~ ~t~.t~":J hr-aVY'l{auce st~l. Th~adll!'d for 'h- ~Ipe , GrIT. enam~l . I ~

~';"."il;~· Nk~.ho: '24.55 911 ,;221 . Trumpet all "hovr. with ""I.ht IS' ~'lltt d"v"r ullit .

'>:rT ":~'. ~H: .'.~ '.':- $29.95 95-22~. AdJuM.lblr CTo,vfoot brack.rt • .5llJll. NET , .Sl . 94

DRIVER UNITS lI::n1ght 15''''''att drh-er unit!t e!lpc't'ialh·d~ .. at:'d.forPA u • . 8 1 .. !S 40, 1S· ...... lItt ,. PM dynoamlc driver ualt , a

':!'~. ~C: 7 . '~.56.59

95-031. Uke a bo,,'e but ",';th JrnlM'a I)'pe FA8-8 ueit. I~_ stand. ShpJ: . wt.,

~ .. ~. . .. $36.75

81 - 841 . lS, watt S"' ~I«'_ tr0-4ynamic driver unit. 6-S ohm VC; 1500 ohm. tl ....... U 'I:~d.r ....... 8I1M. $4.62 64-903. Une Tnan:d'orm · ft' for ritlier 01 abo,~ dri",.r

95-032. :\dhoUltabt~ ca"t·tDna \ nft""· Unit" . WI.. I~ It.. fC)Dl.tand . SI~ . hllT .... . 52.94 hilT ....... 51 . 53

UNIVERSITY BOOSTER SPEAKE. ~"rnC"d for UlW' as inteftOt1lmuniQ\Of'" .. pr31.: . rr", in 1000aUDNi ""'h~ noi~ level", arr f"!Ipt'<'"iaily

~~·\~~~~~lo~i"A:!st~: 1'!,!:d'tt~~I==~ National 1)efr:nJ'r Plant"_ \\<i', drlh'ft Iliah,., undi .. lortrd acouslic output than ordiROlry ('Qnr·ty~ ... pral.:~lt. 12 WOItllI; Input Impit'd:II')(:t". S ohm". Brll diamrter, S". Ovrrall drpth. 7-. Witb driv~r um\. ShPi' wt .• 4 Ibt..

~lT~75. MOd: .1B-••.•..• . .• S15.S2

IULlX TIUMPnS Uftft" all the afivantal:cw o. "!IItrail:ht" tnlnlpM ... . b"t rrRr:a d",,,u nodu(;U Ir.nath to a minimum. Produce mOre lM)und for .... mr ",<ltta" input and proittt IIound in a narrow 1W';lI n for mo"t dfici~t CO,,'ft'il&e. Rubber rim! dlmin .. tr '",onaner, .Indlc.t~ acoU!ttic I~nltb.

UNIVUS'TY IULD TIUMltnS. 'IG. A. Sc:ienlillkally df'MiKnM .. llpon .. ntJal prn,ft'lorl. (lfft'"i"ion COnluuk'1of'd to ~t.un th~ corrr.·t lo.:arithmic tapPT for uniform r"production of tht:- full f'"Jut:'ncy , .. nlte Non·t"r1IOnant I~;&turr ~Iimjnat..,. raUl". With lOOuntin~ lKacuu.. but ,_ driY~ un;",_ '·ftmh full u- of :amplifift' output.

S~e. N~l T~L.n!l th; I-_i .l.!..-. _C"t Dft I~ 1 ~~ ::: ~:-: ~; :: I ~~: ~~: :~ I~ $~I:g8 75 .. 157 5MB Jr ,... ~ .s 10.53

KAINER .nux 'RUM-pnS. flO ••• \Vutherproo{ ~h ..... 1 lrumprt", Gfty han,nlerlol.t fin;~h Lenplth: RT· 21. 19"'; RT · 2S. 20"". With UlOunLlnlt braclflll hilt leo_ drivrt Unit s - 95·200 RT:fi-, ••• , 2'-' , '40<:1'5 -, '6-,"4.90-~5 . 20 1 RT· 25 58- 25- IUCPS 10 2 4. 18

UNIVIRSITY 'M DRIVIR UNITS. FIG . C. F:ulu.u,·r rim~ntmnl frature ~ur~ permanent alianment of .... ~C'C mls; adds 20'7, to efficirncy. r.ctor, I)u.r.ntud .1).lnst b,..kdD..," 'ar <In . " • • r. lSohm Y .. ~. Fit tlnu,"e'f't.lty alKl ~aillrrtrumpna.

S hek N° · I~I __ Re .. pons!... I wattSj

W t . -I N~ 81 · 5 7 0 MlJ-S ~SOOO CPS 12 .5 S 12.94 81·571 SAil 1fI·5O(JOCI·S 25 7 19.40 81 · 572 P ,-I!. 6O-5500CI'S 25 10 3 1 .1&

UTAH BI-DIIlECTIONAL SPEAKERS Compl"~y dU!ttnronrtd. bi-dlftctional P\f Itpraken rmbodyinc the latHI in !llll'"ak"" dr,,;,n. for t"a11 and r>fl.,pn« IIVlllemll In <l('"hoob. factoriN.

~~~i~:tii:~~'. ~~ld~~~n~~~: ~~ t::r:e~th~a~t.i!::'~e r:.a~~ clarity. l..ow freQUftK'Y f"l'!!lpon~ ha" been rrduced t o pr'f!'VrDt voice dilltortion. The IIturdy ~ivel ba~ lDake!' ill!ltallatJon e-asy and prrmit.t M1Jr1lkft" to be turnt:'d. 10 any d lrrctlon aftrt' moulitinC. Model W -800

~hmli n~: .ra;t~:iv. !:Ot'ha'!a~~ .. f'o:!! .r::-'9rr:o a2r:-:r!a~5!.:r \~~ ra.ul)· handlr up to I "..Itt. normal. 12 wattlt ~k . StIllE . wt., 6'A 1tJ...

:~:~~~: t:~=; ~~::to~: hilT £4CH ... ..$9.11 81-052. M odel \\'·110. WBII rd)fodueer lIi.n ... to th~ .hown above r:acrpt that the frequf'1lcy rrtlpon.r hu bftoll ntr-ndt:'d. to I'e'Produce the musical ltC"al~ a~ wrll a" voitt. Ca~ Is of "re-y. molded. non· mrtallic material. Idr-al it" an additional "JM""8krr til the home. for coin ..

1.=~::::u~o~.!:~:~!e~~~~~d,~~.84\lb~~ ··hI~o~~ ~~il 6 .' ~hmll·$8.08 64-909. Uni .. ~llinetraAaformerlor above. NlT " 76c 64-90 ... Ulli"t'Tllal outPUt tran"rormM' for~bo\.'~, hilT SSe

SPEAKER VOLUME CONTROLS

W"h-QuaJit)" "L" Padll for audio

!:tp~! ~l~'!:h~~("?::'~~: ... ~ And to ~ and 15 walt .U':'I.

JIN5IN "L" ItADS . FIG . A UTAH "L" ItADS. 'IG. B

80 EVE ~ 't t H I N G , N .J.t A D lOA N DEL E C T RON I C 5

TYPE "J" COAXIAL HI-FI SPEAKERS-FIG. A /\. ne\\' achip\."t"ment in .peaker d~1(1l offmng true hisch·fidelity rll"pro.Iunion. Each fPproducer coORish actually of two P\1 "~l.:eT,, \\il h 1"liI~-in fr~tlf'ncY didding nrtwork. F...,.,pec1ally n!("Ommended for F M r~·"\·Pfl(. hlRh-quality pllono If''Quiplnf"nt, and fuU-rangr PA "Y!ltrms. For full fn .. ,uen("y r~ponlOe. tI~ , ... ;t!l I.)a~'i n-fln cabiDrotll ~klw. 82-0$0. JHp·52. 15" pM "WoofM'" handlf'Sfnqul"ncif'Sfrom so.S.OOO CPS. SVZ" r»M "Twreter" handle!' 4,(}()()"12.000 CPs. R anRf' control

~J~~I'i"14\~~~~;~:~:=~~ sOO':i~'~,J~~2;~~~·~tT'-. $29.11 82.0S2. JCP-'O. 12·jnch fl.lwakf'r . Frl"QuPnC"Y rl'MJliOnU'. so to 10,000 CPS. \ Vilb C'f'Ot&M~\'rr Drtwork. Handl", 8 to 10 watt". Impedance. 6

~'::dIl~:~r.:!~~~:~-:~ri~.u;:J)~·.h~. h;~~bt.fi~f'tii-~ .i~ .~~. S 17.35

Stock M od.1 No. I 8"2-0 7 0 -,, -, --IS-CT

RT ().RT e a2 •07 1. I G8-e.2-07 2 GI

a2-073 )' ~ f12-CT - a2-074 C I 2· RT

Volc. Coli Siz.

Oh~l~ ---so • 5 II'" 6 5

10" o 0 12' 6 7 12' 6 7

n.ld Wt. R.I . Watta Lb •. NET PM -I-···· . -. SU9 1250 S 5

~~~ ... : .. 6 IP~ 7 7 .35 - , eU~No.I2·UO Model FS-10Fleld SuppJy.Wl.,2Vt 1b1t. NET S2.50

POMANENT MAGNfT DYNAMICS-Flgl. I, C FllW"fIt quality ~produ~9- ""ith PM field a..._mbli~ of highly mag-

~~~II~~J :.,~~I:.:m~I~ ::r1~~:ihrnJ~l:n!dI::~e~~~~~ "ide frequency !\.tatchina: transforWH9 are li8ted brlow. . . Stock No , Model Size ~~--5'-82-021. 1'!\.16ES 0' 82- 022 I'M SU S S' 82 ... 023 J' MBC S' 82·024 PMIOGS 10" a2-025 P!\.IJ2C 12' &2·026 PMJ2GS 12' .2·027 PMI28 12'

V.C . -..-• • 6 6 6 0 S

I W.tt. Wt.~be· 1 SN2£.~i 2:5 .1.5 2 2.59 5 .1 3.70 8 • ~:H • 5

10 7 9 . 11 • 0 6.47 I' \J 18.52

BASS REFLEX ENCLOSURES

MODEL BR The BaM-RMlex lIpt"akrrrndo!l'u«" ha:i l-~t.abli!lhed new I'Itandards of l'lpeaker performance. Type BR unit.ll are ideallY tlUilC'd for U!M! in the home. the studio. or for KIl!IJ.craI PA appliC'atiorlll. Specifk·alJy

~==.fobUi~c;;th J:b: I:~ \VithothM"~peakt"r"ifdetined . Will J,tn-atl,.· improve nliddle and high frequency ~ponse and add oc-

~a~tifUI~~efil:i';h~~erid: b=~ lacqut."r. Shipped in knoc1t~~own form and can he eaJtily 8JI.."tetDblf!'{1. All nect.'"SSary hardware 'neluded.

~I~ISP"." 5, •• Enelol.," SIU ILb .. , NET :g~g~ :~~1 1~ ~ty.:~~··:g~ ., i~ Sl~ :JJ 95-000 BRl21 12' 2J~'X30~'Z 12~ • • n 15.51 95·003 BRl51 IS' 25 xJJ . 'xU ., 60 18.2 9S·004 BRlIl I S' 27% ' xJ6 xl5 ., 80 26.9

PERMANENT MAGNET SPEAKERS Knll ht d,.-namic !tJW'3krr" art> baC\::M by OUr One V~ Guarantee. These Mplendid uniu are buill to pro\"'ide faithful reproduction of both "'cia- anti mu.q(," at high \'olume le\·pl". Have remarkable po\\"« handli na: t":3P8city and t"xceJleol frrqurncy ret'lpon ..... f-t>ak efficiency and M"n!litidty are achie\'ed through lhe U!lt· of carefully eoKineered "'oice coil asAembli~. Voice roil. b-8 ohms. I~ outPut tranaformers.

S~",,~· I~I~I N:;:·V:I ·:::· I~I ~~: I~ 81 - 521 12" 8 lJ 20 20 oz. 6~ .4 al-500 S" C 5 8 12 0%. .. St· II :: :~~: g: ! ~g ~ Jllli;. Jr· 1 :~

FIELD COIL DYNAMIC SPEAKOS tFor AC o~tJon. u_ with fit""ld I'upply li!ltrd below_ e[)esigtx'd c'f1iK'iaily for Knight 1-watt amplifier listed on paa;e 69.

Stock ... _ I V. C. Wdt.t F"leld Lb • No . 51 •• ~ No .. rn.'1 P •• k Watta l R.a. Wt·. NET

81·50. s" C 5 S 6 t2SOO .. 2.55 ".-505 -..- C 1--s-C1-'-T'--6-'~ S2.55

::::~~ g; g ~~ ~~ ,.S .~~ :~ 3:~g a.-526 12"' A 20 JO 10 . .1 itl240 I tJ , 9.73

ADJUSTABLE TlANSFORMUS Stock No. Type For Spe.ake,. Wt. NET 64·91.0 UDi ... . Lint" 81.500 SI -505 81 -506 1 lb. SO.68 64-91.1. Uni\". Plate 81-500 SI·505 81-506 lib. :Bi 64-9 1. 2 UDiv. Line SI-520 SI-521 lib. 64-91.3 Unh· . Plate S I ·520 8 1-521 lib. r ..... - 91.4 Uni,,·. Linl'" S I -522 8 1·5 23 21bs. I. 9 ........ 1.5 Unh·. Plate 81 -522 SI-523 21bs. I. 9 64-.1.6 Univ. Un!!" S I -525 SI-526 2Ib!'! . 1.41 ........ 1.7 Unh· . Plate 81-525 SI-526 2 11)M . 1.41

KNIGHT FIELD SUPPLY FOR DYNAMIC SPEAKERS al. ·552. Knishl Unin"r!l3l AC Field Suppl)·. Strop mounting type . OutPut. IJ watts (100 mao at 130 V.) . Fila any S'" to 12· 8~dker w'Ith

~~5GT ~~t:.o~t~oJ Il!? ~ t-i?:?? ~:. ~~·~t.~ .~ ~~ .. ~~~ .~~ .~'i~ .'ag

ADJUSTABLE TRANSFORMERS UniveNlal plate anfi line trantriOrmt"f"lj, Cor Utah lIpt"akers. LIDe type are tappt"d at 500-1000- 1.500-2000 ohm!'; OUtput type 2000-25.000 ohrDA.

Stock No. TyP. , ~ Li ne 64·901. OutPU~ 64-902 Line 6 4 ·90 3 Output 64-904 t.ine 64-905 Outpu 64-906 Line 64·907 OutplI.t

For Spnkns S"'~.Wt. NET GSP. E12P. FP ~rif"fl I lb. i'f:11i"' GSP. EI2P. FP 8eri~ I lb. 1.11 HSP I ~ I "'. 1.5 HSP 11 Ibs. .1.5

FI2P.GI2P 11 Ibs. 1.53 FI2P. Gl2P l' l b,.. 1.53

g~g~ ~~ :::: 1 :R~ PRIORlnES: 8ecau.e of W.P.B. limiting orde~ on a .. enlial war material •• uch o. ~oppe,. d .. 1 and m a g net., we moV nol be obi. 10 .upply , .A . • peaken wilhout priarill • • . We, therefore, uttila ex· tendon of hlghe.t priority raling. with your arden.

ALLIED RADIO CORPORATION, 833 W, JACKSON BLVD" CHICAGO, ILL. 81

MAGNETIC & DYNAMIC SPEAKERS UTAH SPEAKERS

Only the fin~t of m :derialll and ski1l~ ~:~kmllD.hip II() (DtD the manufacture of Utah PM Dod Field Coil IJPi:."ilkcn . Each component part ill carefully i Ol.pt"Cted aod It-"SlN ID the Utah laboralori~1I bMore .. ~mbly to

~~~::l:~tl~~b~b~~ ::bi! from every speakn-o relard· Ic.~ of type.or co",

PERMO· DYNAMIC SPEAKERS STYLE A. T he Utah Pcrm()o O)' namic (P,", ) spcaken U.ted below are ,.,.pedall)' dClillne4 for latCTcommunJrntOr'. ponablc and ballet')' IIe'U

~~~~~~II~~~:~:r!.·fe';!:dabf:::-~~il~~C~=h~~i\~~\ill~i:~~=~ d looeiq proper l!I~ak.tt for any application.. -Magpet v."(!ia;ht..

Stoc:k Mode. V. C. Normal Shp'ill . NtT N •• N • • Sb. Imp. Wat .. Wt .

'[It ~ ---:TP ~y.- 3.5 2 .5 t lb. 81 -081 51' 3.5 3 2 I"'. 81 -082 61' 6' 6-. • 2 I .... 81-083 8P 8- 6-8 ~ a::l: J Iha . 81-0S4 Ell' ... 6-8 J lbol. 81 - 085 lOP 10" .... 0 9 51be. 81 -0SS 121' 12' .... 8 10 61ho

UNIVERSAL TRANSFORMERS FOR ABOVE

~ ~:~:~: ~~~ t~:n:'i~ !;:~~w~~~ · i;.~~.b. 1 ~~~H .... 88, 6:2·34:2. For lOA ~d 12~ .~krn. Wt., I lb. MilT....... 51.18

MODEL 9 FIELD.COIL SPEAKERS STYLE B. TM b .mou$ Utah ·'0 " line of !lJM"3.krn rrprCM'nt!i thf' hhchnt

~:ral~~lli~;kt:.~':ahli~::· 'Zi':~:!r I~ :;r :~~rr~~ Pt'::~:~ brlow to match 90,. of tbe !lCl. .. now In U~. Uah·t..-rlal outpUl u andormcn "uppl~d .... : ilh ::LI1 .Pf':t.k~'" esC"r'pt •• and 5· model~ (- ) . • • antJ 5· ~pr-am tr;uu!ormCN li~led below. All ' '0'' !lpt'akrn havr 2~ obsn VC.

S toc k M o d e ' Sa.. 'n "'eld Shpo . NET No .

~1ij-;- Inch •• Ohms Wt. Lba. EACH al·IOo - -.-- 2750 1

TIf 81·101 J...aS- 4 450 al·l0:2 ~06- S 6 2 81·103 530- 5 2750 2 81·104 Sill - S tl800 2 81·105 $45- S 450 2 81·106

~r 6 1000 J

81·107 18 6 ,,800 3 81 · 108 25 6 2500 3 81 · 109 10 8 . 000 • til 81 · 110 18 8 t l 800 • 81 .. 111 02S 8 2500 4 81 · 11:2 1010 10 1000 6 81·11~ 1020 10 2000 6 a'·114 102$ 10 2500 6 81-115 1210 12 1000 7 5:1~ 81·116 12U 12 ISOO 7 81·117 1220 12 2000 7 ~. 7 81 ... 118 IllS 12 2500 7 5. 7 -OUtput tramd"Orn::lt!f littrd below. tTapped at 300 ohma.

SINGLE TUBE OUTPUT TRAN SFORMERS -For • • and 5· .~krn, alxwe. Ah,o ideal a!ll repl3.C'rfUeDU 00 all

old '(K'a'''~r !l. Built for eff icient l!IC1"Vice and .plrndid toOre. Wt.. a 01-e2"'320. 2000 Ohm • . For 2SL6. 2586. J5L6. rtc .... f .2-321. 4000 Ohm!ll For 6\'6. 2SA6, 25A7. 43, nc... NlT lACH

:~:~~~: }~:~g~::: ~:~ ~~~G~~~·4~11F~~~tC· .. :.. 62c

WALNUT CABINET Solh.1ly MnfltrlK1ffl, hand!lOme w3lnut-fiolllhtd IA'OOd ~pt'a k ..r f' arnne1:. Buill for U5le with ("itb"" 8-i n~h Or 8Va· inc h ty~ sprakrrs . Expt(.' loI:lly d t"!li 'lnf'd fo r r~lrn .. ion U~ and for all RlultJplc lI (W"ak r r (n"t a llat ion!!: . lIa!l: ~utJfull»' C'arVed tront ,-!ri11(' pan('1 and attrotttivC' matchln~ .,-fU" ("10111 . ~upPllrrl with fC'lt b tJm pt'r-iC'd

~r:!~ur:!':' cr-!. "!ar9~· ~ral~·.a ~4:.rf~C::: ~ ~'=700. NET . . . ... ...... . .. -1.40

KNIGHT DYNAMICS

,~r~ !:~ 3~tJi~~ ~:-~cr~:'=!'~ rrvwberc for U~ a:I rrplacltmrnt. or oriltin31

::\~:r~~'!!t R ,::t~~(li:D:::rc:::I:~dCO~.~~~ mall.hlp produce .pt·ukenf 01 racepUona l IjuaUty. R"pon~ charactc'ri.Uca mal.:~ all Knll ht topralu-rs idral for u.-e In 011 ty,... of AC. AC-DC, aQd auto-radio Ik'tll, a.>I ..... cli U 101" PA in~lal13tJoQII and va,in.!.: svstema. PM dvnamlc, !lupplirri 11'"-,, o ut· put trOlD5Iormcu..liatrU Ik'par-01tcly below.

PM DYNAMIC SPEAKERS S t D •• N o . S I .. Voice Coli W atte S h p tl . Wt . EACH ia· ioo ty.- .l·S Ohmtl --p ~y, :~: S~:8J 81·.01 J..5 Ohms .1 .... 02 .. J-S Ohma 3\11 2\111"' . 2.40 81·803 .. 6-8 Ohm! • ] Ibs. 2.g' al·804 0- 6-80hlull 1 4 II..... f. 4 81·80S 10" 9 Sit..... .38 6·80hmll 81·80e 12- 6-8 Ohms 10 6 I.... 5.35

UNlvnSAL OUTPUT TRANSFORMERS FOR

:~:~g~: ~:~ !~~;!;~ttl~ral~; !~~h:iY.CN::T :. .2· 302. For &. mudd; t..& ohm vo in: coil. H£T . . ... 62 ... 303. For 10-' and 12" modcl lJ ; 6-8ohmVC. N£T ..

KNIGHT FIELD COIL SPEAKERS

ABOVE

': l~~ .. ~c: . 6c

NI[ T (AeH . '1.88 s 2 .4 • ...!9~s~3:..:..=2~O~s~5.!... 1!..:O~ .T IIIPprtl al ]00 ohm • .

CINAUDAGRAPH SPEAKER 2·INCH PERMAG

Medel 22 MP. Thl. 2" PM dynamic lrIM' a krr 111 tht' hllf'1ll dr\·rlo pmrDl 10 compact I pt:"a.lcr r d e!l.il:ll . C a n be u.,..1 a . JIIprok~r and m lCT'Opho~ t il 11 111:111 i nlrr . com mu niratJon a pparatus . Voter coil tm.pCtja nc. ill J to • ohm • . A sprdaJ voice--coil·to- RTid nlalrh in J,{ tra.D"'ormrr I, li!lted below. Modrl 2ZM P ilJ id r .. 1 lor Inllt .. llalloD ID compact b~ttery and lJaucry-AC-Uc.: poI"lablr IIIPtII; for UM' lUI t'Ombinntion ,peal.:r:r -mlno-

~b:~24b~·_~~tr~~=:: ~~TSbP' . . ~' t .. I. I~:.. . Sl.29 e2·3 ••• Unlur .. _ OutPUt Tnnsformer. J ib. NET .. ...•. . 73c .2·]..7. Velc. C.a'·To·Grtd Tr.ns'orrner. l i b. NET . •.. . .. . 73c

KNIGHT AC·DC DYNAMICS

3V •• INCH DYNAMIC ParticularlY adaptablr lor Jrplaee-. m('nt of old "peakrrll to ImpJ"O\'e midll'e't AC-UC 1It1 !11. Kuurdl)."

~n~I~:Ji~~"f~~t:~~J:!.!:::!~ Balalk'ed coor and \·oi«-coil a. ... IItmbly ~111 handle up to J V, wath. Voice ~I imPl"d3~ I!' 4 to 5 ohm!'. FaCT plate 11_ four moundn. holC1l. Supplied 11'"98 out· put tranqformer; WW' 62-JIO II~ at rh:ht . Shplil. wt .• 2 Ib!l. 81 · 680. 450 Ohm Field.

:i~d6:h2m~~~S1.25 w. ('0" .uppIy odditlonal .~Ir;en 0' many typ" • . for compleftt Ilttlng., ... pav.' eo-a 1. FOf' .~Ir;., repair po rh .... ch a. field ColI~ Cone-s. Shim' and Cem.n' re-f.r to pag e aJ_

82 FOR COM P LET E I N 0 E X SEE P AGE 9 6

REPLACEMENT PARTS FOR SPEAKERS CARRON EXACT DUPLICATE

QUALITY SPEAKER CONES Duplicate rrpI..a..~rull'nt co .... &«ul';I""' ly rlHh:.ncd and carefuUy C'OD.!IIUucted to ruatcb tb: ori.iulWt. OnlP pin.'"'e .-amI"", Dlata'iaJ 1, u»ed; notai for endurin. oud I-Jlea»inJ: qUil.Hty. An iaC'Cur"tdy wound Yoitt coil hi att..c~t to eacb co DIP. Cob~ 1&1'11' precf.ely

f=:~,Jf:'\J;:i~,~~:r:~:: :-~~~'" ;~~~!. t:~a~l:!u:iit,:;D~~ For imlJl"ovoo tone quality. fl'-place )'our old tllk·akt.-r conc.

~~7i.m:~o~~!~'i~o~o~JJ!~1~1~:~t'\~~f~~:;; 13" and o,,·tt-not to eJ:C'e'ied $2.75. Send in olel CODe ..... ith

:U~:!!k~' ::'nd~~zewYII ~pk~ :?!~~ °fa':t~;r:.~i:~ rntire 8po-akl'r i8 ""'nt In.for conlP in..'Itallation. add 15c to

~~~ -ft!r:!t.~~~~ln~·~!rl~~ ~~ ~:~~:::. ch;~!~;.!.~rll::.u~~ of PM'iI.if Det"lled. Av",~ ""plot. \VI . of ("One!'. 2" II",.

Stoc. No .1

4" SPEAKER CONES 8 2·502. 8elmnnt 510. • 2-503. Ulall -IAIOc\. .2- 500. Z('1l iu, "'AGlA..~. 49.·\("',.403 . 82:-501 . Z~lith 4'.1AGlH.

:~y5:?tOz:.tl lN~¥~· ... 59c 5- SPEAKER CONES

8 2 -5 10. Airline 62-274 . -350. -351. -352. -436.

82-51 1_ AirliM 62-518. 82:-512. Airline 62-236. 62·26.1. 82-510_ Rt"Jmont 425. Pt. . ' 114- IOS. 82-514. Ik-Imout 0580. J"-"11 ... ·D 1'l'5R.. 82-512. ~llUont 666.600. 82-516. Chcv. 985426 (l ilah). 82-512_ CheVTOh't 985200. 82-517. Ch"vrolrt. 9a.1li425. 82-519. Chl..·\rolel 98558.1 ("1(}.45). 82-510. ero"lc')' 648. 1I SC. .2-511. CrOlllry AIS;. !'11 .• 1Ii"7. 5!'17. 82-521. Cro"I .. y A366. 515 (~IaJ(na\·os:.) 82-522. Cm .. l,oy 516, 82-525. CI'"~le)' 719.-\, 82-511. 0,,1<"0 KMl. • 2-521 . Delco MO, 6.l1A. 4099 (Yaanavox

\0·76.) 82-512. Of!'lco 640.631:\ «()pl--racllo..)

:~:~~~: I=;:~ i~~~:i l,SH. J21. lSOL\V. 82 - 526. Enwf'lIOn DI..4.1O. .2- 527. Motorola 9-21). 82-510. 1A'flhh .. O-lU. "0-237. 49·2JJt,

:~y5 5~ ~Oz:n.I.t.h N4:-i .. ~. .7 3c

' " SPEAKER CONES 82-537. RO'lC'h ~().s!W'T i ...... 82 - 544. Buirl.: 9HO"J5. B2-538. CadillacCS-S6-52.;I>3.

:~:::~: J~::'~ ~~rRS. 82 - 539. Jcn:oot·n I'M6C. G6R.. 82-536. \1uluml" 75 . 82-546. ~Iulorola 258-6, 82-547. ~lutorola 2~M2-O. 82-541. Mutolota 2~F &:: 280. 82-548. thail 6810J, 82-537. \\ l"fItin.:hollll(' V':R209. \\'R211.

:~~5,~ ~o~~t~!~~I" . .. .. ... ' .. 88e 7- SPEAKER CONES

82 - 552. Motorol:. liFO. :~:~ ;~: ~~~ti~ho!Q~~kr, SO'S50BI8005. ANY 7' CONIC. Nn . ........... 1.03

8" SPEAKER CONES 82 - 581. C'lM!"TOIt:1. 9852It..l . 82-562 . rl,t'\'rolrt. 9A,."iS.\b.

:~::~~: {ro~:oia~~S' 82-568. ~Iotorola 500. 29B. 258.-59.-61._64. 8 2-587. Stewart Warner lOlA. I04A. R110.

ANy,'CONI:. Nn ........ . . . S l.18

9" SPEAKER CONES 82-580. M:li~tic GI. 11. 12.

:~y5:. 1C~t,:~~t~c£~~ .. ~~. 92: ., S 1.32

Stock No . I Set. Of' 5p •• k.f' No .

U" SPEAKER CONES .2 ,600. G.£. EI t. £26. £61. E68. £8t. E86. ElM. EllS .

82·801. Gruno ..... Spkr . 12...\1. 12.'\2. 12,\4 I2G+1. 901-2. 1101. 1191. H-Il.

:~::g~: j:-: ~iit~~. 82 -60 •. JroruleO PAU2GS. 82-605. M3;est.ic GUB. GIlC, 315. 353. 82-806. Oxford 12AMP, I2MS1. 12MS2 . • 2 -607. Rola GU. 82-60B. Utah No. 1220. CU29. .2·609. Ula" 12PGI7.

:~y61~°i:g:rt'. "m .... ~5C .. . . .. s 1 .70 FOR PHILCO SETS

Stock I S.t Mod.1 or 01 •• No. Sp ..... ,. No.

~82-620 ("hiko TII-4 . . . 4 .2-821 f-hi!co TP4-t2-2S:. '.: 4 82-822 Philco AR 1. _ 4 82-630 Philco 39-6. 39-".: : : 5 82-8 31 Philco C32. FT9.

Fonl . 5% 82-832 'Philoo'pt, 'No', ciis6I·.

Mod. 5 . 48. SO. 80. 81. ...... 5% 82-63 3 Phi leo Pt . No .

B~~~~' ~ti:! \!lc!J: C;608: . 5'A 6

• 2-•• 0 Phflco 17o&-FI 140, . 7 82-841 Philco AR 4.

' !iio . 7

.2-.42 Phi.eo Pt. 36-JI59. Mod. 6. i. S, Q. '0. U. U. 15. 19.".\.41.11.89.91 7'.0~

82-843 Philco .-t. No . 36--3157. Moo. 3 .. B. J8B. 6OH.. 668.848.2608.2678.6258 . . 7\1

.2-6.5 Philco 90. ~6, 20. 21. 70. "70. 490. 650 .. .. 8Vo

82 -•• 7 Phlk081. 65: 95: '16. 96.17.45. ttl. 90.112 . . .... 10'4

FOR RCA SETS 8 2 -650 RCA9TX3. R2 .. .. ', 4 .2-651 RCA rt. No, 902J.

8~:~S~ 'I:~I~"N~:'s987: 5 ~OP.~l::.I. ~l~~i. I~::~: l M1I6. JOO, 301. ... , ..

82-853 RCA I"t . No. 9 .. 28. Mod. R.n. RJ8. USP. 112. Ill. 122. 12~ 1268. 241 8 .

{!?o7.J f?s .. A. ,~~~: . ~tl.l~ 6 Vz .2-654 RCA-Victor R32.

RE"5. ecrll..'fI ••• , 9

NET

SO.53 .53 .53 .59

.59

. 59

. 59

. 59

.65 . 65

.59

.59

.73

. 82

. 59

. 159

. 59

. 59

1 .03

KNIGHT 6H PERMANIC SPEAKER Mavlo2 armat.ure t.ype-1IPf"4lk.en.. SuItable for UlM' ID

f)ct"!..~!: i~~~.o~a~~~ o r c:lJ1 IIYrlt.ems. and many

~::r:~ar noaPtllida~~~t :n~ no out.put. lrao!lo(ofms. \,'ill rnalC!h anYout.put. t.ube with ,llat.e impedan~ or 10.000 t.o 25.000 ohm.. Shipping

;'~,:t;:9~~~' £T S1. 2 5 CENTERING SHIMS

Fll"xible cdluloir1 fI~ far ren-

!i:!n:fa:~~I~ .• ~o:b~~e ,"~r~r lhro (0110,",;011 fliz~: .005; .0075; .010; ,0125, 10 haQ,ty lraUtt!I'C":L"C.

~~i.;;'. 5 No;,. ... , '., ' .3 5c

' .101. AND DYNAMIC ' SPEAKER REPAIR AND

CLEANING SERVIC£

EXACT DUPLICATE FIELD COILS

61-102 U-IO]

U-I04 51 -'05 '1-.0 ..

UNIVERSAL FIELD COILS For AC-DC mld8~ 5' and 6' l'lpeoak~ . I · intidedla..: r outAidr ,tiL. 1· hi .. h , Supplit"ll "'lth 3 .. ""kC"bt for (,Uin. any poieo-pif"{"t' . '1 -'15 . -4~0 Ohln, I '1-'11. 2,000 OhI"D, '1-'1'. 1.000 Ohm. 'I-ItS. l , ~nUOhm. 11 -.17. 1.500 Ohm, Cl-l20 . J .OUO Ohm .

~:lH .... ...... . ... 97, FOR "TINY" SPEAKERS

Uni\"r'Nal Fit.'l,1 Coib lor t.OOk'" " Uny" dy-

bi~h~c\V:~ ~:~~eud~~ 1:~~~~i2~ ~~ .• ~: ~~~ii5~P:.s06·h!.lb·1 0-128. 2.000 Ohm. '1-.n. 1.000 Ohm. 61-'29. 2.500 Ohm. '1-'27. 1.500 Ohm. '1-130. 3.000 O h m .

:-!lH ... ....... ........ .. ..... : .. .. 65, COILS FOR GENERAL REPLACEIo4ENT

Srrvicr an)' t).pe of !lpe'3Kft', Coilt have 2 " .. iOflinl' which may be CODDCCte<1 in t'leriea or parallel t.o obtain the rei~tanC'e' \'a!Uf"tll MOwn. Siz~: T,p. I -inside dia. I ',i • • ollt~idt! db .. , 2%·. lena ttl IY,' ; T ,p. 2~n.. .. ide dia.. Oil". outAide <lia. 21,4", If"ftlt.h I 'AI'; Tr'p. l--inl'ide dia . I,... ... ouulcte dia. 2(;1··' )enlth 21,4 0' ; T,pe ~lhfUii~I~~~li~'~~.A~!:~~ ~~p~~ .~,~Il:~I ~:

PARALLEL RESISTANCE RANGE

Ohm> Til':.: 'I TII':.:2 ITII':.:3IT;:':. ----:iIH6O 51-13S 'i1-iiS "i1-iSS 61-i6S

56fJ.-690 51-IU '1-U' 51-'S5 51-15' 6;5-825 U -IU U-I" 51-157 51-'57 9(JO.1lOO 51-UI 51-'" 51-IS' 51-I"

1125-lJ75 'I-In 51-.. , 51-ISS. 51-I"

SERIES RESISTANCE RANGE

1500-1800 I U ~US • 51-"S I 51-855 161 - 155 2250-2750 U-UC 1 51-.. ' 51-1SC . 51-I" 270(kUOQ U-U7 0-1" U-IS7 61-1" 36(JO.4400 Cl-UI 51-.41 51 -lSI 51 -15' 4500-5500 U-U' a-I'" 51-'S' 51-I"

~~: ~AO~~ . . ... , •.. . , S2 .03 SPEAKER CONE CEMENT

Ccmmt spt'ak.cr COnctl. ~

~~;if~~": fcl8ri~~ oClli::::JIL:L.u ~~r~IJ!z~·~:be~t~~io. wt .• 6 en, . 43·101. NOCT .. ................... 24,

ALLlf;D RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, IL". 83

FAMOUS MUSICRAFT RECORDS IN ALBUMS 8-90S. Unfinished 5ymph. (Schubrrt) . SYmplJ. Or-ch . 3-12- records. NET . .. . S 1.99 8-902. Symph. No.tlln G - Mlnor. (Mozart). ~1~ record!.. NET ... ... . ........... SI.99 8-903. Str.us. W.ltz ... 5-10-- ~ords: Blue

~~~~~\\~~0C!'a1~~. ~·nt.s.;. ~Si':99 8-940. F.mous PI.no Solo .. 4-1(Y records:

r.i!:~::'in A~i~~~J:~~::, ::'9C~E~~.~\ 1s:71: 8-941.. WlIII.m Tell & Sorcenr's Appren_ tice. Symph. Orch. 4-10- records. N ET S 1.71

r<y9~!;r:::·sU~e!a~u:~ ;V~!~e=r~sISp.tn; ~Ef: . ~r.a.Il.~~~~~ .. ~ .. ~~.s •• a: .. ~ll.Yl 8-9t.0. Nutcr.cker Sui". rrI'C hai kowsky). Sympb. Orch. l--I2' records. NET .... . $1.99 8-942. F.mous S,mphonle Suite •• 4-10-

~8s~~r:~~I~~i~s D~~.S~c: NET ...• •• .................. . .• . .. . SI.71 8-9t.2. F .. Uval of O per • • 5-1()1' records: Vesu La Giubb:l; La Donna E Mobile; ee.. lcst e Aida; SaIu l Demeure; M'Appari; ttc. NET ..••..••• . . •.•.... . .........•. . SI.99 8-9t.3_ Gem. From Gilbert & Sulll".n. 4-11Y records : Mikado; Iolanthe. dc. NET ...................... .. .. ..... $1.71 8-9t.4. Mend.l .. ohn Violin Cone.rto. 4-12· r ecords: Violinist & Symph . Orch. NET . •...•...••...............••. . • $2.46

8_943 . Olnner Music. 5- 10- t'!'<.'Ord.: M OOD_

~~in~~i~u~:;Gav~t~~~C.S~n~T:...~ *u,a.t~9i9 :.:.~~4~~st;er&~~; 0Lu:~~.~ ~!:!: drina; Q\'er the Waves: Caucasian Sketches. NET ............................... Sl.71 8-945. BHt Loved CI."jca.. 3--12· ncords: Hunlo[arian Rhapsody No. 2 , ~tc. Symph . Orch. NET ......... . ... .... ..... . ........ $1.99 8-92'7. Great 50n , s_ 4-10- records: Ave

t!n~~; O~dl~~~dt ~~~ e~u~~~" .. ~S 1 :71: 8-928. F.mous Rom.ntle Mu.:l c . 4--10"' records : Song of India; Lion Du Bal . elC. NET ... ........... . ............ . ... $1.71 8-929. F.mous Concert Music. 4-10"'

~or~~~Nn~de~ ; "~~~le lDCa~;al>~e~n~ NET . .. ....... . .....•.... ....... . .. $1.71

r..:~~~~d~~::~~t;rc~~::i.V.~~~2~o9·~ 8-933. Symphonic M.rchM_ 3-10- ft("fJrd!':

~h~:~iR~d~~hkt':;~I~~~~~. r;:rP.',;, ~jli~2~ ra:~~H~r::::~t!°R!!g:.-;:c~ ~S I~i 8-935. Carl S.ndburg. 4-10- record .. : C'rl\I. lows Song; I'm Sad & I'm Lonely. etc .. $3.32 8-936. B.eh. 5-10- n!OJI'd!l : W achM a uf ; Wer

~~n~j"es~:r~~a~~l;u:e~ J~c~E~~S4~Od~ 8-937. Negro Sinful Songl. S- llY rt"COrds:

Complete album se's o' the world's £elt - Ioved and fines. musi c! Recorded by top-ranking artist. and concert groups. All NCordssupplied are double.foced. Averoge shipping WI., 4 lb..

8-91.5. He. World Symphony. (Dvorak). 5--12- records. Symp!l. Orch. HET .. .. . $2.94 8-9t.7. Viennese Wain ... 3-10" records: Evenina: S t ar Wallz: Valse D'Amour; L ea Sirenes; Skaler·. W altz.. etc. Concert Orcb. NET ............................... SI .23 8-91.8. B.lle t Mu. lc. 4-10- ~ord!'l: Swan

~~~ ~~~~:As~~;h~~~~e,;. r~~.c.a~~r:~~

Frankie & Albert i \\"orl,;. Sona~. etc ... .. $4.03 8-938. F .... orlte Hegro Splrltu.' •. S-1~ records: Goio' to Shout All Q\'cr: Reign. M~ Jesus; Uttle David; De Ole Ark.. etc .... $4 . 0 3 8-939. Amerlun Folk Son I" 2-10" r ecords:

~~_~~!~fB~~ayn!'J_:S~~!. ~~ l~i9S 8 - 920. Cuban Rhythm .. 4--10- n"Cords: Bolero; Conga de 108 Dandys. etc . . ••.. . $ 2 • 1 4

VALUE LEADER Coaven.Jeat protection for 1 ()I' or

g~~rd~~:~~~~~!I~i!d~ ~ attractive two·tone fini!.h. Opens nat for ea!.y 8l"lection of desired n"COrd . Record3 are held ia niae

=tXt'dK~::;~t1C:\i~ogr~d:: In a~<IOrted colors of our OWD I!'ele..:tion. Wt.. 2 lbe.. each.

~:;~d!~N~T~ ~~ ...... . 31 c ~e~;~d~~N~Tr. ~~ ....... 42c

STANDARD Iterp your records safe and orderlY ia thiit economically Priced album. It contains complete lnde:'!: for notJn,: Title and Arti"t of records

l prrmltt.1ng the instant select ion 0 the record you may detcirc. H.u 12 record pocket.a strongly bound into the attracti,'c co\-e rs to withstand COn~t:mt u"ngc. The durable fabrikoid COver is finJsh("(1 in rich \\;ne

=~~~~:,n~!ra~c; ~rds.49c 96-851. For 12- r~rds .. 61c

MUSICRAFT DELUXE ALBUMS Buekr.m round·back delusr aI· bum. Protects records against martinI( and breakage. 111is sturdy, good·looking album I!'J SUbstantially coDstructed with a wood reiaforced backbone and he~n-Y doth binden. H:15 12 !'turdy krnft l"n\'elopes. Contains convenient indes on front cover, For 1()1' 01' 1~ records. Shpg. wt,. JIb!'. 96-900. Blue . For llY .. 95c 96-9 01. . Brown. For 1()l' .. 9Sc 96-902. Blue. lr ., .$1.15 96-903. Brown. U· ... $ 1.15

TWO TONE You will ndmlre this new 12-POCket record album. It'll an casy~tJng binder that opens flat. Complet~ lodes fo r listing Record number, Title and ArtI.t as.. .. uretI fast .. Iection of the record yOU want. Sturdily constructed fabrikoid blader is attractively fini..!Ihed in beautUul tweed,-("fTect with rich dark-brown, gold-

~~n:~7~a;~ i~~rds . 59c 96~868, For 1~ record s .. 72c

~~!l :lb~;.~nRei~or;':!!J : durable cloth baCkbone attraetivrly stamped with gold leaf design. lias 12 kraft.paPl"r eDve-lopes which oPl"n ftat for your coa"·l"o.i~ce. Convenient indes: on front cover instantly locates the n!COrd )'ou dffire. For IIY or l~ records. Shipping \\'t .. Jibs. 96-905. Blue. F orl lY .. 69c 96· 906. ~laroon. ForllY .. 69c 96-907. Blue. Fort2- .. 8Sc 96-90S. Maroon.Forl~ .. 8Sc

CORK·GRAINED Here is a smart, IIturdy album. The solidly made binder- ia finished In attractive matchinR corkgrain material. lias s tiff back CCWeted ~;th neat brown lIwirl cloth.

~~1\~!."OI~i8=~ t~~~~ kraft envelopes well bound into

~:v:d~~~.'1:~: ~::'d~orl.!t~':. ;~~8~~', 3F~~i;~rds.77 c 96-853. For 12- r l"COrd!l .. 91C

• DELUXE SPECIAL

Our finest albuml Roundt'd wnoel ba~k COveTed with DUJMlnt Fabrikoid, stamped In ~enuln~ Rold I("at; s:ide9 COV""ed in IInen-crash. Has 12 kraft·paper envelopes, " lbe.

For 10" Records 96-869, Brown.

~~T8lfc:~~~· ...... $ 1.35 For 17 Records

96-871.. BroWtl.

=:T8lfc: ~~~: .. ... $ 1.49

PADDED COVER This delus:e album was dNligned for the di!k'riminatJng music love!' who want. rtch bt-auty a.a well as

~~~ry u~~1~ T::d C;~ifscl~U: bound with a durable rich bro'A"n material which hna an nttracth-e ~wir1 del'igTt. Tile back i" ~racefully rounded und artilltically Roldstamped. HOlds 12 elweiopc!i.

:~·-~~.e:~~·I~ records. 99c 96-866. 12'" record s ... $1.19

84 FOR VICTORY BUY U . S . WAR SAVINGS BONDS AND STAMPS

MUSICRAFT

RECORD

ASSORTMENTS

AT BARGAIN PRICES

WHILE THEY LAST!

lIere i .. OJ oD~in-Q.·IlI\!tim~ off4."rhu: of I(t!nuill(" ~lu"i'-'T ... 11 10-' rt ... ".r !l,.1 I<ec:urlled on both ~hlw ,,;,11. Olin""", r .· .. li,.." .Im( faill.fully rCI.r()(l.w'Cl'

:~ .. :Jr;~:::':~ ~~:\~C: ;'~\I n~~;'l,. ~~117.'i:'..i:.~I ~: 'II·;'~':~II",,~·~~tl :'~f,-':";~,~::i~';'~ dalllUC" ru("IOfU~ ;,1 lwi ..... ~ uht.·li .. ,ahl) I •• " th .. worltJ ",.. lin.· .. ' .. nol '_1 _

:.~~r:~i~, 11~:ri~~:~odu::r~:~'rnn~h(:~~:::'~r~:':~ , ;~'~~~j\~::~'':.ilt!~I~~:;j Ubrary contain. .. n ... ""rdlnM" of vl dd. ", ifl,ula,illl( 'Dullie' thai livt"11 fo~\"~ . kft"orrlint.! drtilOt.ll. althou.d1 nOI m'"III :t.,ned It)' 1I~1I1iC'. ~ IOl)oor;lnkintc nllltroi.; ~t.n". know'll I hruuMholl' tlu~ t"hl i rl" IIIU.uC' world. 1~U""h a......."lmt·1I1 .-nn t:uIl.II :a "·ell ·halan~"t"d .roup uf '""I ... ·,iull .. whit'l, C'a n lw _1W"rl a " II ... I"l~"of a. ,.,'nrl! lihr!ll')l' '''QII~uon. k ... ·onUIlIl:" illd ud .... 1 .,f'· fmm St ron . ... (.01111 ... 1. ' · .. n IL Ra,·h. GllllOI'n and :-'ull h·all. (.rh·",. l.i!U!l . 8, .. ,110\"1'11 . ,,(

, "" n" II .. o".,.Io;.> . " "" .. " " ,· 11 a>I nn .. ~ o r I"" • • 11I 11In-n·,.. da" .. i.., .. "" wh ; .... t ·i n,''''- ' II .• . li lt· :-'1 .... ·11""1, Hl"aIlIY. ,-'1, '. 14.,:au~ " f 'hr 11)\,' Vri~ .uolo;. ,'d. 11Ot'1 .. . u·· , .I 1111 ..... i .. ,lIo_ih lr. IlOr "0..11 w" "uppl ) alil'l ulillUfOf" a\'a.ilabl.·, In,l hi,lu .. 1 Ijllt.,. in " 1011'11 .. _.flUI .. nl a~ , liR·.,rt 'ni -t hrrr arr I'll) tiupli . ... nionll .• \~II",UI"an: I~""' .. I. k"'ad)' I .. r ,.l lI lJ lDrll t , (J1l 11141itMS /;,";t .. J '

10 IlECORDS-20 SELECTIONS

PORTABLE RECORD CASES ,\inJlaIM' 11I~ru:r mal\:rial ('O"("'f

U1K; h.inKft1 lid .. uri , ' lIrOlIl(' d :L"IJ. FrJt-Uoal for prOl"",ioll . Ilold,.. 25 - 11" recurdll. For ,oa(rly Uatb<--

~61_i;~~d:-T~ I~ .. ~ 1 .29 96-891 . SantII' ",.. abo\'('. bllt h"ld ... 2.\.-((r" n .. -or.I .. , \ writ · t.uih ,'a_ OIl a \ 'ery 10\ \ prke.

~tl ' wt .. 7 II~. S 1 .1 5 96- 892 , Sam.~ "llII abo,,, hilt 1001. 1" 5c~ l r ta'Orol.. . II f'":H 'ily f~ll ' ''"'''' fur ('!It I ra l.ruil,·1 ion . ~tr- wt .. 1tJ1I~. S2.55 96-893 . Felt · llor., ra,," "OIl abm c'. but hold!! i{)-- IO" n .. -ord".

:tl .':~: . ~ ."':': ... .. S2.1 5

Nrw WALCO fLOATING JEWEL NEEDLE

CttuI""~11I' i"n!'J and reconJ Jlrot~ LlQn III DO"" providrd by the ne"W a.lco T)'~ WN-15 floating jewel JlI.a,yhac k needle. Spring a(,lion r~ ""Iiro.·)· and .. \o\-id~l.:uaJ'd ah90rb all ~blc .. hock ... ; prevrnt thll' chip. plnt IIi 'ewel or th .. damaginll of C'h.-ri .. h.·d n-cord,.. from a droppt-.I (1\..:10,111" Thi" economical 1'lyll1. ft'dll'·'''' .. "rial"(- I!oi .. anll df'HonioQ lu ~ mini Ilium , N.·"" d",.iJ,n minimu:~ t'-. rK'UTtI \\"~ar . El ilninal" trouhlt.. ... IIOhle n\ ..... I1~ cil;.mlirinK by a..!lurinll lift'timC' """""ice whf'n uJOt'd w;lh liachtwMlChlIJirlo;.It,.., I m{tro\'r your,..,,.,..

~"II~li~~r::r.':;:~I~!u'!!i::i~~ Into!: ,(>,,,'40" no'f"fit(' . 8("auufully p."lC'ka.ccd rnr pml",lion i ll a modnn pla-

~~d.o:':2:'"-N t"f. ~.~' .. '1.47

,.Ig . A. W.tco WHSO. 1.011 1{' life IJrnt ," h anl.: 1)'11'1 ' .. :.pphirc n~lr. Play .. " V t"f' l.uno n"'~ old .. ", . lIlenU '\I'1lr . .(Iul; · nr.d1p-JlOint rl .. llIl~ nu._ IU "' min imu m . ShadowI.:rapht."d.

FI, . C . Knight ~ulne l':lpol ,hlN" n'''''III_ art" I.:illtilo YOUf C'lll";lIlw.' n'<'Or.I:oI and pril't!d 1IIr.\("t·P': HJnally l o w. The)' arr pn-..,~jon-cut 10 p rovide- lh~ lOW_I IIO,..jbl~ lturfLk"r Illl'~ and to ~linlinalC' f"C'a)rd w~r . WU! pay 0 \·...... 2,000 tiUW'1I w;' hout nol ir~~ble w('OU" . F.w: . ttll",1 for \1 .... In a.ny aut .... lRalic.-rn'Ord chan.,'r . '"mdfle ..:IOriOIl!l, futl-bocli,.d 'nn~ quality , Idral ~plac. ... m .. nt tor u~ in lill" ' ·wt'il<:ht "'.h -ti.I"I .

Fl,_ A. PfansUehl . Pn!cioUIi <hruiu m m e13.1·3I1oy Ilft'd l(' pai o t offr,. OVI'T ..& .000 p lay". Id~ for aUlt)oo

Flg. D. F i.I("llton e Deluse Floalinc· ,.loinl need lll' ~\'~ 5 ,01:10 pl"y" l·rlt"'t;ou .. ·mll'lal~ ti p , Sht!al h eGn"u ucCiun ill-10\\'" frn-dom o f X'lionr .... hl~ ",,'Orrl wrar . ~1f1C.

~ntl·~8 2"'o·.lHO:T .. ... 73c

::::::i~~17~~~~ a::;=~ir~;c 1f,~'t\~~~lr :~.apaJ ~gT~1o"Fl~~~M,1.47 .$1.25 FI, . B. Per mo f' ld.IU one, Flnntin..: pni nt. filteorlll rf'NJr.1 ...-rntch . Gh'"", \III to .\000 plol)'!<1 \~' hrl!. u~1

6i~'~J15."'N~'f' .. Wt .• 2 oz . ." .. 50c 6i·.~1~j ... 98. 1'1,. E . Nr\\" \V .. lt:O Iridium

:.~I!'i_~rl:;t ~W~r:"1Wi pia)'". l 'ro\·i'I.~ hheft fid("li l Y

FI, . B , W.lco WHSS . Sua ll: " , II!. .. n" "apphire Dft'cllfo . l' la)'", 0\""" 10.000 n'C'Or"!<I in I oz ,. or 2.000 in 2 .... l w , pickup. Nprf"ial'K"Wdl""" !dan mmimbd "urfan" rlIli!'le.

~5~82ti.~ 2,:.[ ·T . ..... 73c ~)~~M:~-~~MI~ ;;: .... 59c

FI, . C . Knl,ht , rrrff'rTt~d~ualhy p A!dout o-mi \lm · tip m("tal alloy nL"f'dlr . l' la)'"o"("r 2.000 re('Ordl'l. nr ".uoo ~dll"4, WI .. 2 o z .

~~T~2g .. ~:.c~ .. t.t.c: .... ............ 39. t;~:;!.~·'i~'~f:l~::I:= 6~~B\~~',~oz . . $1.10

THORN NEEDLES FI,. A. K a ctl . FarDOu.s pf1.('I'"

~~:,elo:~~~:!; nf Ul~. ;::1i':~fl'!:; quaHty withoul "n",.yinl( IIIurt;ll."'e .!<IlI ..... \Vill 1I0t ",·r;I1('I. or daAl;ut'l' rrcord>l . Shil'lwntj: WI .. ~ !.N .

=~;.832 . Pkg. 0' 12. 29c FI, . • . C .. eytho .. ne . p"," c,..y 11 .... ·,11 .. ,. Car("full)' "'\""'<"'11 an.1

~::=;I~· I:r~~r::~!~ . I(i\·~\{i)rf~~ .... -ratch. Shl&.lol.iu, WI. ... 04:.

=:;.~.~~ . PII, . of u . .. 33c FI, . C . F:1IlfM"('iall)' dll"otill:nM nt~lC! madll' from "'IK'tiI"CJ (':\A·tll" . E x. ~11r·nl "uality. flndy llOintl"'d. Pnwi,f"" minimum rn-oM w("at und "w:,"l\lionalJ)' finr tour. Elimi nat_ lrouhl_~m(' nf'Tclle I't""1"atc:h an" ""rfat...: uoj ... A .... ur.·" YOIl nl ouulandine ,......for ma.DC'C . .. oz.

=:;.~31 . Pit, . of 10 . 23c 11 packa," f., ... S2,01

VALUES IN STEEL NEEDLES fig. A. ICA STUL HIIDLES

65-881 . &il Tonii'. 65 ... 883 . Loud TonI', 65-882.110111 Tun.'. 65 -884. Full Tone. 10 i:"'k;~.t:o~ \';: £~ oz. ~[T 75: 65-885. FI, . B . RCA R[D S[AL. P \:.: . of .~. Sll l~ . \\""1 .• J oz. H[ T ., .. 15C 65-825. FI~. C . Ac tone. Shl.Klo, vlI(Taplled. I l i~hl)'

\Ol ;~~t-.~.:! f~~of 100. 0 0%. H[.T 53~:~ 65-930. FII . D. R[COTOH Autem.tlC. !"it er!. Play" 11 to 15 rKOrd .. , 1I 01: . l ' kaI; . of JO. . 23e 65-931 . Tin of 200... . ...... 51.22 65-932 . FI, . [. S u p.rl o ... 51ft'1 allo)·. P lay" tlln I.'i I'et."OTdll , Pk,;:. o f 11. iii 01. .. . •• . ... •..• .. 10e 65-933. Tin 01 200. ..... . .51.22

PETER GRET KACTI NEEDLE SHARPENEII For u-r on :"III non·mf!'tallit nf'f'dIN fluc-h a.- ("an .. ", thorn. lMmboo. or k,u!li . SharPfORJI nrc-dl_ 10 pt·rlra· Iy rounfkwi painl. \~ou c-an !'Ihaiprn n~I."!I and U!'IC 'hem 0\'"" and 0Vff 3Jl"ain . SQ, ..... you mont')·. Top of box IOl"n'_ all bruah for c1c-anlnc fft'Of"d!JI. Ship.

~;': 9~·5 .1 ~b(T .......... . 51.32 fo9i~~~' . ~.x.~~ . D.i~:" tor, ~~" e, . ~.~~.H ::: ~&~

RECOID REPEATER Rf!'tX":It" 10"' rfOC"On) .. alltoIDBtiC"ally. M:\lk of dllrahle t"C"lluloid. will not i n jutf' r"'Ordllor n~le". For U_on

~nl_~h30~~~~~~: .. \~t : .. ~ I.b: . 8 5c RECORD ACCESSOIIES

nt . A. Rec ... d Cle.nln, Cloth. Sprrially trt'atll'tl frll c loth rlraM anti r .. mov .. \t dU"1 an,.·Uflllllalinn" ,'1(' .. froll! ~roo\"'" of phonolCroaph f'n"Or">I; r,,' h·OfI .. r,,",rll lift·. 1\ nll"<"t"NlilY fnr all

Fl, . 8 . W. l sCQ R.cord."e . Remov~ dirl. rtUII' or JCrra- from ft'C'Drd!'l and rK'OrdilU'I'I . Lea,·1I'tI p la"tk film which ft'itUf"'NI ,.urian" nm,.,. :lnd prolong" rrrorcJ lif(" , II." won! fll'lt dau bt-r. F or U"l" on "hY rll"nJrdinll,. r~ttpt thoMe ~:~OlS.r>l~ .. : 4;, .W~[':. 0I:. 12c

69-906. 6" J; 6- . H [ T , 8e ® ma,l~ ui rthyl nollulO!'*'. 69 - 910. H[T .. ..26.

ALLIEO RAOIO CORPORATION. 833 W. JACKSON BLVD •• CHICAGO. ILL. 85

TWO·SHELF RECORD ALBUM TABLE DELUXE RECORD STORAGE CABINETS lIf"re is the JX"rlect an!lwrr to the tffOrd'!ltorage probI~-a t wo-.hrlf table for holdln" record albums. Ik-autiful wn.lnut finish on !ldectcd hardwood vrn{,,(,f tOP. Ilid(":4; nn.1 back. with ~lid gum-wood. IriS. lIolds 16Iull-!'izcd Ir rt-cord album!!. lias venicnl separator Jlartition~ to hold all.lum~ rigid and prevent rKOrd

1\5~S'~~·. "~:":;"~f~a~:: ::'i:;.Ii!a~!:Jf:ri~\\~~~r. ~8_~tso.al~~T~·!~t~~ .. \~·~.: .~.I.~: .. S 11 .75

Magnificently IItYled and ftawle-a!lly ron· structro throuli!'hout of hea\"Y wa lnUt ven~r!!. and fine cabinet hardwoodll. lhi!!. Record Album Cabinet conform!!. to hh:hc~t stand· ard. of furniture construction. Blend. harmoniouslY with an)' interior Aettim:. It!!. e:ll:tra large capacity of t wenty·four Ir album~ provides spacc for 288 record •. Finish is beautifullY hand·rubbed. walnut . Ha!!. t\\"O partitionll in each st."c tlon. Size: 33" hh:.h; top. 28- x 16YI". (Le!l.S albums. )

Luxuriou!l RlI'C'Ord Album Tabte providl'S maximum album !ltorage facilities. Con· \"(·nlrnt·sizr top ha!!. amplt" !lJ)."lCt' for Your table.type Phono·Radio l'(·t !!. or Rf!'C'Ord Changers. Con~tructed of fine walnut ven~ and cabinet hardwoods . Contain~ flpace for nine 12·inch !ltandard size albums. lIa!'! h\"O partitiofUl. GracefUllY tapered legs of cabinet blend \vith any style furniture. Walnut fini !lh. Size: 28Yi" high; top measu res 20Yz" :II: 16-. (Less ONE.SHELF TABLE

An unu!lually attractive !lingle.dlelf record album (aLle at moderate cost. \Vith fluted gnmwood. ("Orner prnlU. walnut \'enet>rM top !luria«. and attractive o~n grille-type side panel!!. Holds fiV'e full-siz(,,(J 12", rN'Orn albUMs wi th vr..-tu:al 8t:parator paru tlorul. 25 ° hlah. IS' wldt", 14' deep. H as lV.' storage .pa~.

~:'-: J~ ll'.' · NET .. .. ....... . 522.75 The c1~I-d model ill in~t dew ha3 double huna: doors of hra,\'y %.inch walnut venerr with genuine inlaid mouldinK. Size and capacity !lame as for 98-955 aDOve. A pnien Rrcord Cabinet for the diACriminadnll: bUYN.

~~~9~7 ~V~i~~ .I~.s: . . -' . . $ 1 0.75 Clo!'led commode model Ahown in In.ct. \;ew h35 \Valnut Drop Door. providing:

~~iacati~~"'dO:~~n~rZ::~"fr:n':'.ula~ibua: capaci ty and !lize ltame a J' above. ([~

~~9a~~.m~~T~~~~: .~: .2.5, ~~' • • , • • •• $4.70 g'~~',,';l'-:l'.mHh ....... .... . 52 9.95 ~~u..;!{B~VtN·E~. I.~~: . .... . S 13.75

DELUXE RECO.RD HOLDER Accommodatt"!! fd'ty r~rd!l of either toinch or 12 inch size. Has ht'a\'y rubber· co\"ered IIturdy wire ~parato" which prevent rrcords from bei na: scratC"hecf or marred. Handsomely de!li~ncd wood base is attraetivl"ly finished in walnut . Sup~Iied \\;th handy Inde. card and .tickM1!l

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COMBINATION OFFER 37- 940. ELEMENTS OF RADIO (Part!! 1

~ta:~~:rit ~y ~~~~~IIP~l1al~~~n~irN.lIlJ~~~ Secretary of War. Pn-part"d under the direction of Dr. Ralph E. Horton. A basic cour8e on the fundamentals of radi.o. Require!! no adv2Ince knowledge of mathematic!! or phy~C1I. \\'rittm to the exact prt'llCription of U. S. Government

~h!i~a=ro:-:;~~~r!~ f~~!~"l~d'r:r i~~:'~~~ ProRrl"S..~ 10Ri('ally throua:h all IItep& rt"Qui~ for a clear undCTstanding of the operation of TRF and superbet rect.;veu. din!Cljon finller •• traJUloo mitknl. antenna~, etc. Table of eonl .. ntl'l may be u-.ed all .uide in planninR a!J~ia:nment.s. 699

~:.~p;:~ei ~·~:tA.fU!4e~~~I ~~~ t .r~ ~~:S3. 92 37- 860. PRINCIPLES OF RADIO. By 37 - 91.5. FUNDAMENTALS OF RADIO. Kt"itb Henny . Very popular \\ lth elemt"ntary By L. E\·critt. et al . Sec pa~ 89. . . ' " .S4. 90

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~~N5D6Bj,OO:.:Rs:! ·~ge ~~~EE~~~ • . ~~~I~g~ 37 · 692. MATHEMATICS FOR ELECTRI .. ClANS. By Kuehn. See page 87 ... .. .. . $ 1. 72

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SEE PAGES 87 THROUGH 91 FOR ADDITIONAL BOOKS.

86 MATERIALS, BOOKS AND TOOLS FOR RADIO TRAINING

ALLIED'. RADIO BUILDER'S HANDBOOK . P).fj roiCiun . In\'alua~~ aid lur radio-traiuinlo! ('I :~~. SimlHitint outli ltc>'" fundanM-nt al radiu th.!'()f)'. Explain~ roldlo !'Ill" I ....... " al,,1 'ufk" io~, maaD~tl:lIQ" r(·~~tam"\:'. C'lrctron 111C.'Gt)', inductant:e aDd rt:actam. .... . C1IllI1Cltanl"'t'. ho .... ·· tG-rl-ad l:Il:henlatk dialtram ... . dr. Ea""ly · ~lIilt Ilruj«U (or lab. work poI"rlnit Apflli(",.lliuu . • f radiu I"'~Y to ar,u:d u*". III ' .Iu<k-.. : rt'\ ... ·i,· '·r:c; t.raDIImilt~v, OImplilit"u;

~7~"7~o~";~~.~:;~' ~ \j~\:A~: .r~1 ~~ 10, ALLI[o'. DICTIONARY Of RADIO T[RMS. I C)U "Iitiun. Miniature radio ~uC")'t"lopt-dia \\ ith un.,. 800 ("()mIfMln!)' u~ I"'fln" in H,adio an.1 1·:I('f.'1 roni~. 1·: a"oY·'u-un.ll"rlitanc1 .1~6I'lilioll"' , I,k.:d fur rl"ir'r("''''~ u ..... · .... illt all)' h.·xt In rad io t rainin)( rla. ... .,.. Ci v~ "" I,,:m3t i(!

dl'.~~.S!:~1o:.l~t:14! ~4~~~I'~':'~II:it!:):fl~II:; ~: relk-nt rd('rl'nr,· fur tuh·an .... ~ ra.lio tno.."D.

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ALLI[o'. RADIO-FORMULA AND DATA BOOK . F:dit~d b)' Scho o M. Cook~. Chtd Radio ~llI'nririan. U. S , S a\·y. Cunlairu ~ntial nlalhC'Qlatit.'al fornml ........ labl~. h1iJlC'\'Uoul('OlI. data lind .. tandardlt t.'UDlulonly u ...... 1 in Ihe tk'I,1 oi H,adio and

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ALLt[D'. RADIO DATA HANDBOOK Edill'.1 b)' N~I!lOn M. ~k~. rhirf R;ulio r:!n."r"'iall, U S. Sa\·)' . , C'Dnll"'rhrn,o.i\~ h~"'ld\JooL:. 01 r'ormtillUl. Uatn. Slandar,'~. T alJle- and Chan!! u~d In !kIltit ion of evf'f'Y_ Ila)' IM'ol.llI"mlll in Ralno and I::Ie<'uonirll . A Ilract " 'al reil'T'f'nC'r boo\;: for IIluden\lI. IleTyi~ ,"(·n. en~Illerr •. in!'truaOl'!l. ~('. Pa..:krd .... ith ____ ntiat Information. An ("U1.·n"'nt 8UP111~ m,.nlary ,," lI: t fur r;uiio ""hool. . ) hlndy no--

ri"'7·~'5.i.n~~:i ;: I ~:;~U.'r.lA: ~E:CT~: 25, MANUAL Of SIMPLlft[O RADIO S[RvtCING . R)' Major J. G . Tu~ti!lOn. IJ . S.

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PRINCIPLES Of RADIO, Hy Kt"i t h 1I ,·nIlY. U ...... l by radio trnininK d:l,Hl('" ,on'n·\\·I.'re. Covrn. d~ri.·,, 1 fun,lamt"n,aJ" to ra.lio tl, .. "tn t'

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NEW MALLORY " MYE" TECHNICAL MANUAL

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37·920. REFRESHER COURS[ IN FUNDAMENTAL MATHEMATICS. Writtt'n by fltan 0( U.S. Na,'aj TraininR School (Rlldio j/alrri,/) Chiraao. Kr),rd to Cook",'. -" alJu ",NUs for E/,.-,,.,{"i4rU 4 ... 1 Rddio"u", Ii!ltnt abon" A "uirtf" for one manc I'l d~room C'OUr,.,. or ;t rt"';C'w for ... If-tIl''XNnM: . Covet':o whole numl..". and fr~i()fl"" through ~uadraci.r and !limullanl'OUII ~u ... tion!4. Glv..·~ an:owft'll. 171

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"RADIO PHYSICS COURSE" TROUBLE·SHOOTER'S HANDBOOK "TWIN GADGETS" 2nd [dltlon , Latest. re\'l!lled edJtJOQ of radio's It'adinR flChool and homc·dudy t CJ:tbook . A I"l.."m:ukahl)' complete cour~ in r :.uHo. telrvi,uon. nnd lIOund . The dean'lit. mol'l' iDta-eo.tina; radio book :h'ailable. Pairutakina csplanatioru datify ("very point from mOM' elemrntar)' fundamentals to mmplf:J: telc-vision and "talkie''' theory. EJ:pl:lIn~ all pranlcal rarh o.bout inductance. capachan~. vacuum tubctl. tran,mi~on. r~pUon . ~": . Includn \'aluable nnd comprehr n !O \'e information on radio Mrvi,ci~ and npc"rimrntation. An idt"al book for amtiitiou, radio-minded mf'n 3J' a home' lItudy cou .... in radio. Endorllf'd and u~~ ... 1 by I .. ading technieal *=hooI9. I n\'aluable to the Radio Ikeinn("l' . Sludent. Sen.-i~man. Slot-Builder. ElI:-

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:r::;: ~lu':::d~5:rP!:..t;',lt~I~l:: K"ams nnd charu. SiK. 6Y,- 1:

~~:'550. "o.tp .. ld . . S 1 .00 37-585. A. above. DelU1:e edition. Buckram bound. Postp .. ld In U .S.A.. ... . $2.50

DEFENSE EDITION OF THE A.R, R.L. HANDBOOK . M retlt the demand for a tC!':llt to l.M! ulK"d In radio training courltH. All m('r('QC'I:' \0 Amateur radao procedure has ~ omitte--d . COypu In cleaT, IItep· bY-fltC'p (a:.thion all fundamf'ntal!'! r_"Quired In radio C"Ommunic-ation!l.

!~d b':a~r::t:; ~~~r~c!h~a= ~"'ntial formulas. IItraphfl, rte. Slze..

~'~:5:'1:· ~~~f::r:: .. ·l.00 A COURSE IN RADIO FUNDA-

:'m~:a~:~S~\. !lt~:~ 1~:!~;'1::; manual with It-Xl ba .. <.1 on the Hadlo Amutr-ur. Handbook of 1941 or flUb""'lU~Dt fi.lltlofU (lllt .. t rdJ· tion Ii!'lte--d abow). 36 Itudy all!'ianmlt'nts ~;th QUfiltioM and .nll\Oo~ ElIJM!'rime n t!l iIIUfllrate prtndplf'!ll.

~~C'': 56'~. z":~;·"lct .. ,"". SOc

RADIO AMATEU R'S LICENSE MANUAL. Tell .. how to IM"C Ut'C!' amatrur lIn-nM'. Contairu Frdrt:ll Communic;;uion ll Commi . "loD·. rulr!l and rp~ulallon. KO IIPrnink Amatwr radio !'I t at ion ... OuMitiou and an.w·C'n ~:tion l'OvrrS 311 probable que-'\Ion!ll for Cla!t.. .. A. B

3n: a ~ ~1r.a;.::::1I:~.t~~~ !'1 2 5 c

ANTENNA HANDBOOK. Ea. plll.hu untrnna dl"sien, C"On,trucuod. theory 01 radiatioD. 139 pa&l.~. 6!-oi-..

~'1:·5~:~t~a~::-pald , ... , .. 50c 37- S52. H'NTS AND KINKS. Jlundrc-d" of the bnt Idc-a. .. dr\·rloJ)C'd by In.rniou!'! Amat~ura to 801\'e probJeTlu of mod~r1I radio con .. truc·

:!1:cdo':.d OfC':I:~~~~~i~~..:rrt Ab)."~t rC'1lO~ul csperimrnter!', All aid to

p!:!~ .. ,.:.'. ~.I~: ........ .. SOc A.R.R. L , MINILOG. 6O-P:lRft It'lg

~~5:~: ~-~.tPald . . . .. .. 2 5e RADIO MAP. 1«Y z 4~ Ihnd· McNally ft..i:'Olor map. ShowlI C"Oun-

~~e::d "~i:ua:,:,~~~rS. ~~~ ~i:! ~~."4:~ .. .... ,P .. , ..... S l.25 37aSS9. A . R . R . L . Radio_ .nm •. Pud of 100. P'0.'p .. ld .20c

LEARNING THE RADIO. TELEGRAPH

CODE Dr~h:ned 10 train " tude-nts to han· die- code- .killfullY and with pn-clllion. both In tK"Ddine and recrivtne. Employ!' nO\"ej !lY!ltrm of code in .. truction to mt"rt today'!I r;lpeciaJ tralnin.lt nrord,. Ezcell~nt for home !ltudy. Particularly valuablr to the IItudent who does not have a~ .. to a rnde m ;lchine. Contaih!l da.a on hi~h'_fJPf"r1 oJ)l"ratton and IYJ)e'\\Tltf"r ropy; a lllO d r KriboM corll' in .. truct iOIl table with praC'1lC'e ~

~1~a_t.&2 . P •• 'p.ld ....... 2 5c HOW TO BECOME A RADIO AMATEU R. CO\'f1' II funriamf!'ntal!l, <'Ode. ron!'!truC\lon of Irarullnftl ... r~

'3n~_5;~~t'I"~or.t:p.ld . . .2 5c :17-55:1. LIGHTNING CALCULATOR. TyplP A. Sol now prob . Irmll of rn-queD 'y, inductanl:'e. (·I e.

37-5S". LIGHTNING CALCULATOR. Trpe •• Soh'~ problem" of \·oltaef". curr~nt . 1'T"(!'It am-..

~ntc'H.\\'~r~.tp"ld ... ,s 1 .00 88 FOR COM P lET E I N 0 E X 5 E EPA G E 9 6

RIDER'S MANUALS AND TEXT BOOKS VOLUME U . Circuit dlacram~ a nd :t('rvtce

1P.t~:k.'~~Y~~~nf'3a:r%J 9!~it!:~ li~~~ lor \'olumes 11, 12 and 1J. Sbpg. wt., II I~.

~~TOlA3CH ..... .. ......... s 1 0.78 ---.. ~ 90-0 9 0-0 90 · 0 90 - 0 90-0 90-0 90-0 '0-0 90-0

.. az a a 10 o. 08 07 06 05 04 03

Vo l. ~ - ' -2 - ,652

" '652 ,0 '650 9 1612 • ,650 7 ' 600 6 1240 , 1200 • ,060 J 1070

Y.~r EACH ll.aJ-ly '41 S l8:~3 Late' '40 Early '40

l8:f3 ,.J9 1938 18' 8 '937 1 . 8 19J6 8.08 '935 8.08 ,.J.& U3 19JJ

90-020. NEW ABR I DGED MANUAl. 2000 ~e book C'overin/o: all cUC'nUal data in

HOtl!t~S 1 .t~. ~ .. ~~t .: . t.~~~ ..... S12.25 37 · 807. VACUUM TUBE VOLT MIITI:RS. Cov~r8 rUadan:lltTllal t heory , rune-

~!f8:·d~t~:gT:::'~ . ~rit:s :~:'~C!l'::J construclion of th~ InstNlllenta. how to u!tC

S;~~~I.p~·~~:·l~UI~~· ::T~~?~~~: S 1.96 37-80 •• THE METER AT WORK. Trl1 :t how mrtC'r1l ""Or\.;. how the)' :f.hould l:M! IH:'IK'too

:~ .• ~~o~~·I!':rI!~~O~~;I:::t !~ .dIT~';d ~~~ ~'l .. ... .. \~t .• I .~. '~ ......... s 1.47

37-61.2. AUTOMATIC FREQUENCY CONTROL SYSTEMS. All the information

~C~~"'t~~c\\~~~rll~N~~ .• S 1.22 37-61.3, SERVICINC SUrERHETS. RevitllC'd and enlar&ed edition, C o mpll.·te. d~ta.itetJ

~ di8~~:-::t~\~~~~1v:r~~ ~nET~~· . 9 8 e 37·.09. ALiGNIHC "H.LCO RECEIV· ERS. VOL 1 . Comp~te data on alhwi u i: I'.(J(XJ.OOO Pbilco M"l!I , G ivC'S procedurr, lit lj3U. etc.. for n'~ry £>bilco from 1929 to

Ni"T~~~ .~9!6: .'.7.~ .~~':":.~ .'.b: . S 1.47 37-81.0. ALICNINC PHILCO RECEIV.

~" I~~\\t 2~N~.h~.~S 1.71 37 · 800. FREQUENCy MODULATION . lIow to tK'n'ice F~I ~b, AIM) a dClk'Tiption 01 aft FM broad(":utinr;;: s t ation a nd ho \\-· lt diffe-u

fHn:~.~~·. " .J~. :'~~' .. I .~. ~~' .•.• '1.47 37-601. . SERViCING BY SICNAL TRACING. UK"!! the:- siena) 01:011 a ba.~. for diaano:!U. or all receh'C'r problem!ll. A~urn ac-

~t¥~.~~~~I.t~ .. ~~ :..e.~: ~~'~':.~ ~~:'2. 94 37 .... 02. THE OsCILI.ATOR AT WORK. A popular Rld« book \.\'rttt~Q to hdp )'ou

fu:1 ~~!.:.!~D o~t alt t~~~I!~[llalt~~ro; thl"'Y fUnctJOD and \.\'heft they caD be u~.

~4it"".~: .\~>. 2 .'.~ . .. • .. .. . S 1 .96 37-81S. SERV,C,NC RECEIvERS av RES'STANCE MEASUREMENTs. Tell.

~~~::I~"·~~:;~l;~~~l~~~T~~r~il~:.:~toIr~ lIi"lunre lyl)("!!. valuCtC ;and \\'atta~c. E X11l aln.

37 ... 1.4 . CATHODI: - RAY TU8E AT WO R K. A mmplt'tr re\i~w o f ttir th<'Ory and Ol)("raUun of ('athode-ray equlpmrnt. IIlus.tratc.l \\ith photof.::r:tphs of imaRC'1!!I producrd

~l;!~.'~~ ~~~~v~~~: ~~.~~C-:: ".1~:$1.47 =::. 0f.X~~~K Nc:!t~l.t.'~~:. ~~~ . &2 . 94

37 · 875. THE " RADIO" HANDBOOK. The t... .. tnt t:.dltfon . C01.'tt:!l la te,t S hort "aft dr\'e:- Iopo~nt ... Introduction to Am ate-ur Radio and Ekoctridty. Tu~. Rrn-ivrTll. Tran"mittC'rll. ,tr<'fluenCY MOdulatl0it Ampllfi("hI. TC'lrpl1oDY. Powrr Sup-

~N;h }!;~I~d:' ::~~:I:: .. ';~~<;lt:i.~\e '$640 prute'. e dition. IIto .. tpa ld In U.S.A • ..• .•.•• 2.00 37 ... 745. RADIO OiltERATOR'S LICENS E

:;VJcDf;;r ~rl(~a~~:I~~;~I:f ;o~&:~~~.3· ~t~~~ r rkl;Tapile--'1f or H. ad u)·T (,lrphonr ~l'allM"' !II I.i<'rn .. r. Cont.aln!ll OvrT 1250 Qur>'tloM aDd An· • \\'e'f lt tu ~x--e~mc.Dt I''CC ea.amlnat1ons. Clo th

~~':! ... ~nri~:A.. ... ... .. ..... , ... 13.00

37-91.5. FUN D A .. MI[NT A LS Of" RAD'O. lIy W. L. Everitt and a~ date.. A basic tntbook fOf'

~: t~=~f·aill~. t~~ trchnidaru for the ul'ID("d tlC'nice!l and fOT' indust!')'. CO\'ertJ the e-ntlre field of ba~le radio from thr I!!Ih.pl~ drT'Uit to the- modrrn prinodpl~ of 1"1 transmission and ncrption. Vro\1dea aumr:rou.qu~tioD!t and an!ll'4'nlf • :::!t:="- Well iUu~trab:d. 'n U • • • A .. ...... 4.90

"HOUR A DAY WITH RIDER" 37-803. VOL. 1 . ALTERNATING CUR· RENTS IN RECEIVERS. BoIsic f unctlon:olloi AC in r ttcivcn; rr~ance. coupling. Inductance. pha.!M: rdation~. $inc W;a\'~, etc. \Vt .,l lb.

37~604. VOL. 2 . RESONANCE AND

~~~~ti~:'!tNiJi t;;~~~~~aann~("C:~~i:~: Inent pr-OC'<'dUtl"!l. a. .. part 01 a re pai r iob. 96 voUuable Pa&eS. Sbp&. ""t., 1 lb.

37 - 605 . VOL. 1. D. C . VOLTAGE DIS . TRI8UTION . Te-lIl1 you the " how a nd \yhy" ot DC ,li!lltribuUon to th~ \·ariou . tutx-a in a multiple tube re-cl.'i\'er. 96 J.laaell. ShPK. wt .• 1 Ib.

37-808. VOL. t . AUTOMATIC VOLUME CONTROL. A full trr.,ttD~Dt of Autom;ltic Volume Control "tlYl temtc, alltO volume ez·

~~~::. ~~~% d;!~~~. m~I~~~. tll:.pr~OIl ~:J.::~e..~ME . ............. . ... .. 88c

A-C CHARTS 37-817. Contala5 U6 h\~lor chari! from 10 eycles to 100 me-laC)'cl~ For colllputin, ftrquenQl'. inductance. capantaDce" ""'" "i slaQ(;C'. conductaDce •• u..c-eptance. rractance. im ... p('1lanC"C'. admlttana. pha~ aft"ie. and r('1K)nance, la IIC'ne. and par. lid drC"Ulu..

~T~~~~ . t.~ .1. ~ .l~ . ~~ .. !. I.~ . • '7.35 37-818. AUTOMATIC RECORD CHANCERS & RECORDERS. ComplC' t e

d,r;~~,,'~d=~de~:. \7!Uld~a\~~~~m:~ia -:;€~~.~~: .7.3.~ .~~: .~ .I ~~ ...•... . $ 5.88

RADIO LABORATORY JOB SHEET MANUAL

AIRCRAFT RADIO AND ELECTRICAL EIjIUIPMENT

F~I)' prrpa~l for fltudentll and irutruCo torl'lo enga«ro in bruit: r adio tMi'1j"'K . Contlil'lb of 24 13txnatoTY or tthop-work pro;ect!ll, tM-cinnlnlt with rundamental" 0( f'ltttricily and rndln. 'fI,h h :1 ('Ompl~le 6-lubr AC "u('JIl'rhH ftCftV'M'. £3d\ prnjrct indudC'S a .. I atl.·mc-nt of thr primary ob;rcu~, a fbllCu!l!llion oJ the prindpl~ in\·oIve.l. pr~urr to be foflo'OA~ . ~ull!f and c:onc:tu!lions. harb to be uwd. and examina tion qUHtioa. to be afl ~w('rl!'Cl . Sizr, I t Va z 8%". Open!i "at. Shpf.:: .

3'7. ~25°:i. NET ................ s 1.76

S.cond EdItion . U.l . By H. K. Moron..

~~~pCf!m:ndni~~~ ~~ri~~~ii~~~n~~~ lItudent maintrnaflC'e and Hilo':ht mrchanlc:a. Coven Powt'1' ConvenioDj A~ry Equip.. ment; Tubes afld AIQPhftet!l; Tr:uumltter f'undam~t3I !11; }.tariJo WQV'N and Statl.: ;

~~i~~~~t;FiC!i:'~~t!r~I~:a-~ir~~Te~::~;. mlHer!! and Rrcdwrr&. dC. J74 pac". 21S

~7"~73li;~:oIIH ~V: · .. J .. I.~: .. .. .. .. -4.50 ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD., CHICAGO, ILL. 89

U42 MANUAL. " com p noh .. Qsh·" collection 01 til .. I~I oft~n nt~,-d ra,Uodrtuil dia"ratrnl .m.1 Mon:i"iug Information ,·o,·t·ring all polJlllar Ifill niOllt'll'"itdio !<Cu. Contain" 1Ot"1"\;t" hint ... al1~l1Inlll'nl data. I F pt.-a"",. t·Il· . ,'ou can .... \0. llmt· liy followim: th .. faC"lfiry in:ttrUcUothi "IIitli 11:1\,· bn'n included "'lll many of tile

1~7:r~ ,;~.1~~~t;~J:~'id r~~~ ~I. ~ . . S2.00 1 941 MAN U AL. &on·itt m .... 1 IC)-tl 1"l"n"IIYt. .... fllljC"klY an,1 a.·.· urall'l,.· .';111 Ihi" mont·)·. aIOldnJ: HI!"! II 11,,1 Sc:hnnatit diagr;""" for t·vt!'ry popular I 'HI radio. hM.·luf'l~. rir.·lIit" for all 111Iportalll r.ulio ~·t,. .dtll nHlIlY p.-ul=- li",lIo'. .·nn~ hinili. ami alh;nm ... nt data. 192 paKt:lt; :<ize, gy,. 1( II· CapacilY and u'"i"tanC"'C

31~8 f'1 ~·~~.~~aa1r:i~ U.S . A . .. 52.00 19 .. 0 DI ACRA MS. ~f o.;t imJlOrt a nt 19 40 nuJio di.u:r.lnl~ and ""r, in' ,Iala nt"t"de.1 to n:tlair alliulC :K-l" Inrlud .. .,. .... ralu" 01 I94(J purtablttl. 1'.<\ 1I)·"II·nll' ... h:nal·uarinJ:. inlrr' (~mmulli.-alof". u·t"Ouk,,,. 1·le. -tIl model", of 43 mallufa.. ... urll."r" . 21Z 1",gt"1l; large ~ze.

~I~:~j~: Po.tpald In U.S.A •..• S2.oo

1939 DI"'CR"'MS. Contain. " mo.::t.fr''flut·nt. Iy-~,---d" dlaRralnlt fur rr,mirinl-: 1 9 .~tl radio recd,·er=-. Gi\"~ man)' l18rl,. li"t". ali ~lllIIt'l1t m~ho(b. and mUth , •• ,.vir .. rtula. I ql P,'I;,"";

~97~~2U~~'pu:~~a~~~;nXJ .I;: A •.• S2.00 19n·1931 DIA.CRAMS. -t 27 •. ",ml .. oh l'nnPedrd" rtiaKrarn. 10 h"lp "'011 ",·n·it'1."' rd.lin ""14 fn,.Irr anel hrtH.-r. (~h"'" u~ .. t d~Ia. II-" Pl"ak". alignm-..nl. pari" II"t". ,,·Ie . 1"Y,' It 11-.

~-t~ !:~8·. Postpaid In U.S . A .. S2.50 MOTOROL ... M"'NUAL. Conl;lin,. 72 l'O:h"'wOIlk dlaKram". ",·n·in.- IInl .. ",. "ith ali!,."'"

~dil! d!~In.. ol~~ih~';,Ii~~ f:~,:tll i~~I'~~171~1: amW ~7~I'~·3~~Z'P:.~;.I~ II·~ ::~:a.:~.":. S 1 • SO RECORD PLAYERS - RECORDERS. Conlaln .. f,,11 IQ"tflU'1I0U" ~n(1 diaJ(ralllll for an· jll"tin~ anfl ""'IJairinw: 1ll000l populilr alllnmali..:: rratrd ehaull'"1"". mnnllill r'''CQr'' pla"·I·r",. \\;n.'I .. "", o..-iIl:,tolrM. r,·.'Ur.!o-r". an" Cl)rDbillation".

~jj ~8rJs~"'i~"';'t :~~ i nl t;:S.A. • .•. S 1 .50

GETTING ACQUAINTED WITH RADIO. Ry Alfrro 'forlr.ln. "1 .. -,..1 for the lx-ginner. Prnll:tt"l'l.."IelI from basic principlt"tl 10 I«hnir-.. I d(.."1.ail~ of mocit"fD day rarlin. Tellll how 10 obtain an Am.llcur Iin·II*,. huw to Duild oIuaple rt. ..... el\·.·u and tran!Cmluer ... etc. \\ nnen 111 .. lmPI .....

CALLI NG CQ. By Clln· ton • . D. S.lo . l 'aC"Ked \.illl Irlle"lorill"1lof \\urld· \nolt· .. \ nl.u .. ur fnend"j,ll)!l. IWf .. i"ln. anrl a.h·ellturCll 'j'7~8~~~· P~~=I~~ .. "I~~~ ~IA.".t~~~i~.n ... : •.•..........•. $2.45

RA DI 0 FO R BOYS. By Alfred \lmgan. Prodd ...... detaliM in'trua.. .... lions for con!'trucung cry!'tal !M'1II. onl' and tw'O tu"'" ~in·r ... amllii. ti('r!l. phono-D!tC\lIators. etc. J:xl)lain" basI<- thll!Ory. "fell .. IUI\\ 10 h"aru

~~~.:t.n1!:'1tO;:idC~U.~~IA~~~;.I~~~~~~~ .I~~: ... . •. $ 2.00 ELEMENTARY MATHEMA T ICS. A ttimplitled. prat.""til'al .. tud)'· • "QurA" for thl' t('Chnioan and naftJlmall. Conlain!, a !'pedal (""haptt!T on radio matllemaul"!I and probl~ms. Explain» U>IC of :dide rul ... elc.

~1';~8;'(j: ~~.~;:IJ:t:~n8 . ~'.~~. ~~~~~' ••. ~. :.~~~ ••••.•.••. SOc

II ... "1 1l ... j.le" on "tori~ .. II 1t1d, 11:1\'1' m .... le n .. ·w,,· IlO'I)(I'r 11l.·a"li n~lI. Hrieft)· "'a-t. h ..... \mat~lIr Kadiu',. hi .. l .. ry and ~r"wlh. ..\ 1I •• lItl· .. ·J.ltl i. -al all .. ur1lil'l: D.·tinn hook thaI 1101,[ .. )-, lIIf illterrlll!. :\u t."1Ipe •

"i ~II)' ":0011 huuk fnr the radl u IImat~ur. 191 1'~Rnt.

~? i~:'~: ... $2.00

37 · a26. Stewar t · W.rner Diagram Manual . Cl ro.:uihl and partlt ciala on popular '"Ut.ld~ 37· a27 . Anln Dlagr.m M.nu.1. Com· plele informiltion OD .uJ I)()pul.u- "A .. n .. io" :le'l~ 37·837. Cener .1 El ec tric DI.gr.m M.n· ual . I'art"data and cirMlillt for popular OIodd~

~oE.1p!I~~~ ·U . S . A . . .... 50e SIMPLIFIED RADIO SERVICINC BY COMPARISON METHOD. Show. nl'W ,.hron...("ul N,mpan,con I''''hni'luc for toealinA: fault .. an(1 r"p;tiri lll: m,lio ""I,. .. ~ I any n·I>.,iN nlay IJill' 111 : .. 10.: "ith,,"1 1.-.111 • .,.tlipm,·nl. Shnple!

~r;,i::.:::;r;::':l at;!·t~a~~I':~~~:~nci~U:ja:u~ ... ·n.;t."C hinl,,; 16 l'Irt:~ Irollhl •• ,.'i;oollng blue-I·rinb. I'ull)' illultlr"'led. Size. BY,· It II ·.

:?st::':' ln the U . S . A. . .. S 1 • SO PRACTICAL RADIO MATHEM ", T I CS. Irwlllf!l-", 1.)111 .,rithlll.,tit· anfl t·I,,·mrnlary algeJ.ra a$ at'tlh ... 1 tu r .. din fIDd (·lc"i·uonk". u..y to un.I,,·r .. talllt. Jl I'a~l"" , Siz .... Sv,"" 8V,~.

~·;':·8~r2~(,,"p·:~-:~:idkin U . S.A ••.•.• • • 2 5c

37 .. 700. THORD ... RSON M"'NU ... L . Late!llt rdition . Five !Jig ~tion!5 on Tran.llmiu'"'""'1 Ampli. fil'". and full de-tail!l on dMliJm. con!IU'UcuoD. and ol)('1"ation. Valuablt' lM'niC'l' hinh . dialnamll. and puns Ii",t.. Profu:t't'ly and colrarly illustrated. Con·

37 · 575 . RCA TUBE MANUAL. TK'hniC'31 data on all RCA r~C't'hinK lulw-la. I nciu.-tl'lldiaa;ramo'. cohanll.

90·050. R"'DIO·S MASTER ENCYCLOPEDI... . I.id" the Prndu("h of appro"il11ately 90% nt Ihe pan!l amt "quipml'n( manu· faC"tl1rru in radio and rJ«\roni .. ·" indu .. try . CUmlJI~trly iDdne(t fur .pn .. ly rrf.·rrnct! t., product and IllanlliilC"turrr ... \n In"aluahle- aid I" Plln·ha .. in~ al,tl·ntll. C"1I~irM!'M"'ll.,

~t.i~~~I~' ,:clgah~~1' ·lb~3~ IT'"~· .... .. • . . .. •. 21 c

37·701. SOUND "'MPLIFIER CUI DE . ("'rUD · IJlett' con!ltructional data on Lab. t .. ~I ... 1 amplitit-rIl al1d a.<laOCiatl'd I'QUipmmL CU''''rll n.i """I'll. p~'

~~~ti:';~'i;=~~":tti':~~vt~ 61~~~i[,: an~ 9 c 37 .. 702 . TR"'NSMITTER CUID[. iliavnmL modulalion tabl~. po\\~ !lupply drruit!l. ~U:. Indi,,· lM.'rwable to evf!'f}' opt'rator. A (-'Onnmienl lIIOurc(' rtf

,~~rW!::~~rr:!~r!it~:.a~~~~~~ ::'Iboo~~ a~[f~ 9 c 37.703. FORTUNE'S AM ... T EUR CUI DE . A brt:inners J;:uidr \\·thtrn loy J . llou,da .. "'ortum·. W9lNC . .explain!l ill delailrd • .qnlple lanJlUilJlt:" how 10 obtaiD aD Amatl'Ur liccn~. Ie-arn codt'o build )"ollr

t:~l~~it~~p r.~~·t'rlb!~· Nlii . ~.~~:.~10th· . 7 5c LOTS Of fl. E .. CH . .... ........... ..... . 60C

~~..:.mSl~~~y,h,71~~.p~~~~1:0Il.~· ;:~T 2:,? 2 5c 37 .. 576. RCATR"'NSMITTINC TUBE CUI DE. \ Vhh lal,"~1 rlata ,.11 Ir.an"01itt .. r ("on"ulh 'lion an(1

~~~v:- f~rl :!:i~~ iJ~.('x:-~~ •. . ~~ .~~.' ~ .. . 25c 37· 720 , MEISSN[R I .. F M"'NUAL. l.ah· .. t I F R~III ... "'t·ln~t ~t ;lnu .. 1. Pills mon .. ")' ill .. ·,·t'rY ... ·"·i.· .... man· ... IJO("kn. Lj"I" ,...·plan.-ml'1I1 Ifan."forlll.:r .. fur fJ.SrU ra,li~. Coh I'" 'Jo" frteolul'm·i_. "1Jl-"dai cpnn,,,,,

:::"'tI~~~Dd~~ir:.a6t~~I" 6.r:v'\~~.~ Idll!.a·N.!'~. 2 5 c 37 .. 722 . MEISSNER AN ALYST MANUAL. A

~=~"~~:a'iul~~fu~~\.Yt~;""';~.rt.·N:~ ~ro. 25c 37 .. 520. SPR"'CU[ INT[RFERENCE M"'N ..

~~L~y~eI~c~!~I~I~c~ti'!!~. in~1T~~~~ . 2 5c 37·760, WORN[R'S pHOTO .. ELECTRIC

::!~$~~~il:~~-:~~!!~sl~,~,i~ ~~~~oN~.:.~ .. 2 9c

:.:~~~~~~~ t."t~el[;ur~lb~~ .. r~~~ i" hanl colol h ("Over ... Owr ~OO fl<lRt-'l<. Si.tt!. l Y,· ;II; 10%· . ShplI: .

N'['T~ ,..... . $3.43 37· 5g0. RADIOTRON DE· SICNER'S HANDBOOK . 1.01(· ~I .. -.:Iilioll .. Ellit ... , by F. 1_,u'C, lurt.l Smith. no(M Au .. tralian .. ullin" ....... and authority on nltJ io and ... 1Ci. .. trunico.. . A manual of oul· tl(andiDI' .umplicity and oonmletene:l.. .... Ev('ry ~nRineer and IItudeDt of radio ~hou Id OWD a COPy,

·~"i-f~.~: .. \~·,t: •. ~ ~ ,I~: .. 9 8e 90 FOR VICTORY BUY U . S . WAR SAVINGS BONDS AND STAMPS

BOOKS • TRAINING SUPPLIES PRACTICE FOR IN DUCTION TESTS

Sample!! and solutions of Army Grneral Cla,!!.!Ufication ability and aptitude tt'l!t. Adequately coy· CTS clements of vocabulary, arithmetic, and cube coWltinll qu~l.on:l ",;th dt'tailrd examples. Smplifit'S the solutloD of all gfmilar problem!! by basic . easY-lo-understand «,xpl a na t io ns . I Dc l udes valuable information 00 the Army M'1l"CUOD

procedures. interview!!! by officers and sugftestions on how to prepare for meDtal tests.

th~~~~n:::di~O;te:vf~~ff.~C('':w~~i~ngr,!~ thOlfe seeking immediate offiC('rs' c:ommiSlrions. 125 '~(>liII. 8~· & 11·, Shpg. ",'t ., 1 lb.

~~T .. .. 5: .. .... ... ............ .... 98.

TECHNIFAX GEOPHYSICAL PROSPECTING PRINTS

With any of the ~ physical methods descr ibed. instruments can ~ bu i It to locale meta) and ore veins, subterranean water, oil deposits. buried pipes. etc . Folder conhiDlS blue prints aDd data. 38-1.00. Folder No. 1. 2 tube transmitter and 3 tube rect:'iver. Reflected wave principle.

1ll1iiiJ . ...... 38-1.01.. Folder No. 2. H armonic F~ut"ncy Locator. Radiate low frequenCY' wave.

38-102_ Folder No . 3. Bt"at Note Indi cator. 2 oscillators. Villual and aural silPlab.

38-103. Folder No . .t . Radio BalanCt" Sur· "t:'yor. Loop priDCiple . Modulated. transmitter.

38-104. Folder No.5. Vari able Ind uctance Monitor. Inductance and loop principle.

38-105. Folder No. S. Ht1a:h~ Inducta~ &b.nce EJ:plore-r. Whc;;autone Bridge type.

38-106. Folder No.7. RadiodYDe PrOspt"C-

~kCBH~a~~~.v r~iU~i~eA • . .. .. .• .. SOC SET OF 7 FOR . •••..•• . ...•• . •. . S3.00

PRENTICE HALL PUBLICATIONS 37-905. T.chnlc.1 H.ndbook. B>' Edward H. Lan~. A POCket ·sized encyclofX':dia of

ro:~~~.!t~~e~~f?~~h~~~~:f~ct~S::~C~nt~~ arithmetic Mo!ICntial~, SQuare·root, triitonometric and logarithmic explanation~ and tables,

~~:mi:e\!'~i:~i:!~ ~:~ti~~~f' ai~~~~iti~~~ points. and many other handy references in-

~~~~P::t::rd"Sin\\ti:' s~ ~: . . . . . . . . .. 98c 37-697 . Wertlme Refr •• h.r In Fund.-

U.·atN~t·!r\-~~"r:i~~CS;hoo'rr~!dio ~;,t:r7et)~ ~~~~~;;'m'\u~~~:t~~;m~~~it:'~ ~~~= ~~ ~bra in thoroulCh dail y le88011Il. 200 paRes.

N~t~;O~~'d\~' L ~ 'S . A • • .•••• s 1.37

L.bor.torr M.nu.l. for Fund.ment.l. of R.dl o. By C. W . Caldwell. ,Jrofes!IOr of Elre:uical Engineering. Purdue Univt"r~ty. Two volum(-!' . Ex'>erimenh for laboratorY l racticc

~un~::~c:'t':t. t~?'il';Jio~eL:: ct:n ~er~'!:J. ,,;th any radio te:ll:t or alone. \\'idcly uM"d III wa r trai ning radio COur_ by \t' adina: uni\"CTNtiC"tl aDd technical schools . Plannoo to train

~~'t~~~~1:~~~~~~\~a~fO~adi~t,:~~ ~~: t roniC!s . Book I J covers modern radio practice.

~~::~;: :::= :i, [ACH . . .. .. S 1 .35

N.R.I. BOOKLETS Concise t~s by National Radio Instftute. Subjects co"er~ lD detail by eJ:perts. 38·120. "How Sound and T .. le\"ision ProKTaJDS are ~nt from Studio to Your Home." 38-122. "F.M . Signab ." Frequency Modulatio n and fundamentals of FM receivers.. 38-123. "Radio Receiver Troubles." T rouble-shooting .implified.

38-121. "Arithmetie Tn Radio." Simple

~[t~ ~oA~i~~~~:t~r.r.J~a~i.os~·A •. ..• 1 Oc

.~:J"'ll4"" l""'GIIi((Q,,,, "'t(~ .. ~(! 0, ( AlT.4(S tl£C7~",C: ~s\ow

• :: t~~ ,.;;,. I " .. "'";,. r"",,,,",,,,

, I

,

RECENT McGRAW HILL BOOKS 37·680. Fund.m.nt . ... o f V.cuum Tubes. By A . V. Ha!ltmaD. K~'i~ 2nd edition. Co\'CT~ all tyJX'"S of \"aCUUm tulX'S.

~-(~:"': .~ . ~ ."': .. ":L: 3.'",: .. S4.41 37-681. [Ie ctrlc.l Fundam. nt . l. of Communlc.tlon. By '. 1 ... Albert. Pr~Dts fundamt"ntal~ of electrica l rlll:incering. ac· curatcl>', simply. from point of \iew of the communications indu~tr)' , All illustratioml and application:! taken from radio, t elegraph>', and

t\~:'~~°t"~: ~S~T .p.:,.e~: . ~ .. ~ . ~~ : . $3.43 37-682. Mlcrow.we Tr.nsmlnlon. By J. C. Slatrr. Theory of U . If.F. trarullni!!lldoD dealing with wave len~hs of one meter to one centimett"r . Co\"cr~ problemtl in coaxial line~. wa\"e guides. and antenna radiation

iYi~~~[~.~ .~~~'. ~.~. :'·. ~~·~·:. 13.43 37-698. Prlnclpl .. of [Iectron Tub ... By H. J . Reich. CO\'crs tube tht"Ory with emphasi~ on industrial r .. ther than communica-

:d5Wclf~H~~~~~!d . Y~~d!~n~~t'Ytr~fr!~~~ of e1re:tron dynamic. and F M . 397 paIN.

~Er. : .~~~~: .~.~.: .~ ~ .I~: .. .. .. $3.43 37-683 . [ n gln •• rlng Electronics. By Donald G. Fink. Written for the practicinll: ("(ectrical cng;ineer who has had no specific c1re:tronic training. Furnishcsex~lIent foundation empha.silim.:: industrial application • . 358

'HafT:. ~ .. x. :" .. \~·.t :,. ~ .~ . ~~' . ..... S3.43 37· 684. [I.ctronlc • • By M ill m a n and Seely. A complete discussion of electronic prindpl~ in technical and engineering appllcauollll. Theoretical and practical aspects ~~~!t:::,=.m cCti~~:!s~'i6wJ: o&_~t: phYsicist W, .• 4'''''. NET . . ....... . . . . . . . 4.90 37·696. R.dlo Construction .nd Re. p.lrlng. By Moyer and Wostrel. Authoritath'e tt"St. treating the subject in easy·to·under~taDd fashion . Includes discussion of Tdevhion . .fo.fo-l

';i,tV:. 7.!:' .. x. ~ .Y.:: .W.': .. ~. ~~ ..... S2 .45

ESSENTIAL MATERIALS FOR RADIO TRAINING SPECIAL VALUE PM DYNAMIC

RUJ:~edly con!l tructed Jinch _peaker sui table for almost any kit construction job. Permanent magDet

,u. ,lr = "iiI type; rrqbirt"!l no field eurren t. E:II:cellent rt":!!!po n lle. One of the mrn<t \"l~rsatile hem~ in the !tChool lab . supply-room. Can be u~ with J::oQd ~ult~ in any ... mall radio. AI90. easy 10 In,.tall

a. .. an eJ:tenslon or moni tor 8(K'akcr for larger (.'f.luipblent . Small she make!l mounting ea!lY in tho!IC hard · to·r;;et-at sPOts. Baffle problerrut simplified by metal flange. E:II:cclient for AC. DC. or battt"ry rt'«'iven. Flange diameh."f.

~i:~~~rl~~~~!it 11~~s~!'i. u~i~:~ ~8~12t~ ~ET ~'.C:-. ~~'~ ': .~ .I~ .• . •• •• . 98c

SPECIAL VALUE IN KNIGHT 120 MA CHOKE

Fully ~hielded. compact filter chOke u!teful in many drcui.t applications. Rated 4.25 It>·. ~ ,. 120 rna. DC ~ ~lItanne. 100 ohms. 1.';00 V. insulation . DimeruiQn!l are .. 1· high:ll: 2Y:- :II: 2Yz·. Carefully construeled Qf highgrade material~. Black enamel fiDish. FlOur-hole

mountins:. Mounting sloh. 2H.- :II: IJAa'.

~~~r~it~r O~~s~~g~ea~t~~:~~lea~: lIhicld . A u~le and popular item for achool

6-O;~1~~~"N'~\. ~ .I~ •. •.•..• .. . . $ 1.2 5

OIL·FILLED CONDENSERS 58-100. 2 mfd. unit.! consen'ath'ely rat~ 1000 V. DC working. Standard in radio training war cla~. H~rmctic_ aJl>· -:K"al~d . lead-coatoo, !ltccl ca.'<C, and !lperlal oil b~ (K'rmit efficient operation uDaff("Cled by time. humidity , or oPt"rating tcmpt-raturC"1'l . Hi~hglaze POrcelain lItand-oH IDsulatof!l. EJ:ceptioDally low-

¥1~N~f~· .. '~~.: .. 52.75 58-101. 2 mfd . 600 Pf'ak V . oil-filled. DC coDdcn~r. HermeticaJlY· I!IC.·alt"tl. univel"llal mt • . type in round aluminum c:onlainer. Designed. for UlfC in heavy-duty power supplie~ . \\'ith universal bracket for !nounting ID any po:d.-

~o[nT .~~~~. ~~: .~i~: .~~~: ~~~.: .2. ~~~' . 95c ~-~!. J.~~~~~r mC:~f.e~~m!tI~~: lfCaled ('as(". Dimensions. tJAa· x 2· x 1- dcocp.

~~:.\ ffb". ~n~v.~~~~~~ .~~: .. ~.~~' .... 9 5c

6·VOLT DOOR BELL O~ratl'1ll rrom bc'-II-ringing traD!lformer lOr lOne or t \YO dry ttll~ . Used in l.M.-giane1"lI· radio cour~8. in IccturCtt and experiments On fundamental elcctromaKllelk theorY. Cover easily remo\'able for demon-

~~~~ilfak~~~:!e~~~r6r:: ~'};.'tn. 'O:d 'b: .. 45.

POWER TRANSFORMERS 5 8·1 1 0. Half-s heH type. general pur"PO!t(' power tran!<former. u~ ful in many construc-

~.JD ~~j@tL2~ila:m~ Plate. 810 V. C.T. ~ 160 mao Primary. lOS· 120 V " 60 cydes. Size. 3]~,- :II: 2!4.- . Prrd.!lioo ,,;DdlnKII and carefully stackl'"d laminations In!lure efficiency. Con-8t'"rvatively rated to provide ample ~cty factor. ,\.'i11 lake abulllC. Codc·t! Ie-ads make Installation simple. Four corner-bolta provide firm. vibratioD:In.-c mounting . Shpg. wt . 4\.1:

'~'h . ..... ........ . .. ....... .. $2.95

6.3 V. FILAMENT TRANSFORMER A 8O\1I"Ce of filament VOllage' for small or medium size building projcct~ . Rated at 2.5 amps. Primary. 107-115

~~'pP~' Tc;.o:r:~re ~t~;e~: ~<;.~ati.r~~~pto~t:~iec:d; hearily insulated and color cOded. Dimensions. 2~- wide :II: 2'A· high x 2- coil dlame-tCl'. In\'aluable for lab. work . Solidly built; will \\;tJa.

~,:.d1t1a1~ ~~'T~~~~: .\~ ~.: .2 .. 1~~ .. .. $ 1.25 ALLIED RADIO CORPORATION, 833 W. JACKSON BLVD .• CHICAGO, ILL 91

MISCELLANEOUS RADIO ESSENTIALS CARBON RESISTORS

Brilf'l,) Jlf'\V Standard R \{.'\ Color-Coded Carlion M.1M<Ii"tortt. VaJU<'1t heoid to do~ toieralk.'C. In'IWU\ , .. 1 t-"OQ:l.lrUCtion i .... -Iurt."!I accuracy. 11,1:' 11111 " .. 1 ' V J,}pr'r It"ad •. Peorl n a llc:nt lcael CODDiI!'Ctivll j:l IJrovidcd by \\"c:ldin". Slip!:. wt .• J oz.

SPECIFY VALUES DESIRED Ohm, Ohm, O hm, Oh m,

IOU SUO 125110 150(01) 151) 1000 Isnuo 20lCXXl 2uII 1500 20'100 250000 250 2000 251100 4{JU(X)() .tOO 2500 .)01100 SOOOOO J.-;O .)000 4W1JO 750000 400 4000 5001 III t M~. 5UO 5000 60000 2 M ea:. 600 6UOO 75noo J M ea:. 700 10000 lOOUUO 5 Mec.

~:g~g: ~ .,:~r.r~!~· EITHER TypE. NET ... CH ... .. . . .... 3. Q u antity Prlc.-loo FO R . o • • •• • •• $2.40

MIDGET DRY ELECTROLYTICS Fir~l quality midR:;rt: t}'pe dry d~roh·tlC' condco>ICrll. lIermetk-aJly !IC'.urd. ShpII;. wt., .. UL.

~ MfdJ W .. ' V. ~~~- I~ 58· 0 7 0 4 450 t~"I"'" 1 7 c 58·073 8 J50 t al~' 17c 5 8 - 0 7 9 20-2 175 2 .. ~' 26c 58-074 8 ISO 1;1. .. ,...· 17c

:: :g~: ~t ~~ n~::;:: ~~~ 58-081 - 8-8 "SO 2'Axt~· 46C 158-082. t6-t2 200

10--1 25 J .. ni( 49c ·Slandard ~i%c rect;lngular unit!'!.

Con~!'It8 or <liz mi.-rllaneou.r .. •• (>....:iIlatOl. Superhet coil e . etc. Kits already pac,:ked; .election 01 mntenttol ("an· bOt be permitted bl.:C3U!'l(" or low ncr. Lmt e,·('ry

~~~4~~ .l£i~~~. ~~~' .... I~ .. . . . . 4 9 c

IF TRANSFORMERS 456 KC d ouble·tuactl alroot."UI'C I F traasformer~. Lattit..-c·wuund pri· mary and ItrcOndary tuned by

~~t':=~~a:~;, ~~'~f~~oRtu\ mloro:x.h. .. J IcalIII. MI..-t.al rail mr-dll-ures IX.· ~Iuare by JYz. high.

~1fF-i 2·~·. 101~tPut. ~~T1~:c~~~~t: ...... 49.

MORRIS COIL WINDER

UnJv~. \\1od,. Ilonryt.."'OlJlb. Spirh·rv.~h. anll Solenoid coils In ditft'rcnt ",;dth!4 and diameter •. Handles ,·ariou, sizC'tt of \\ire. Counu uumber of tUI'DS on coils. (}prrdtea by band pow«.

:I~5:itc'i" ~[T ................ S5.10

G.E. MOTOR NOISE FILTER An amazing bargain In 3

gf~~~rit;!fmii~~~~k! ~~ caulk.'d by molor int.erfer('llCf!. Sturdy metal caae. .1Ii'A :II: J :II: 2Yz·. hOIJ(trS two lior-<hok.~ and t\\"O coodrDtte'T8. ~tid1J()iot oJ coodcoJtCJ".i grounded. Removed ( rom new G.E. converter unlt~ and n:fioi!4hed. 1Iandies up to to ampe-re>'. Two lug·terminal lead" connect .

=~~et:r:~1 =lFm:~}:.~il~;J~)({}~~~I~ ~<i~o~J)cf.' ~~'i'~~. ~~~~~~'. :"~ .... 9Sc 10 FOR . ..... . ............ . . ...... S8.55

LOW.COST SOCKETS Q uali ty t ub c rIOCkets at low

~~~r~~·R~:" ~~I-:II~e8:~en~: cODstructioa. M et al plat e . Shpg. wL. 4 oz . StoClk No. P rong. EA C H to F"OR

:::gg: ~ ~~ a~~ ~::gg! 7's 3~ ~~~ 58 - 009 It O'IAI 7c 63c

LOW·LOSS UHf OCTAL SOCKETS

No . , I n l ul. tlon I ~tt g' I [ACH ~ Hi. a fi ll ..... 1 n .tkr'j'ji; "I"ii.!" 9C 5S~ 152 , ~tlol ri l~1 YakeUt~ 1 ,,1M llc

:: : f:;d:::::~::. (Unh·.SIot ~it:. ) l B~ LOW.LOSS BAKELITE OCTAL

Prod uct lon-t ype blaclr.: balr.:elit~ OCt aI lIockct. M By be mounted with flangc:l above or ~Iow metal eha .. -"il'!. A b(J\·.··cha'",i"

h!!1~';' w:~~il!~: mt !: . . n:'fIuirr. 1 ~· hole . M t t: . ccrll .• 12".," . H!\l ..... numbrrrt:J VIDA and 4 tIOldrr lu& '" for tl~l.nlnt I(TOunding. 6 oz .

::Tl:AC~~O. ~.?R S~ •. 25 •. . .....•. 7 c

HANDY SOCKET KIT Ano:~ionar value In a handY socli;et kilo Con,q"U o f 20 a!lllorted . popular llo'IJl'lil which include 4.5. 6. 7 and Sprung tlOl.:lr.:et .. Mo~t are of

~::~r~~:tS::~:.!I~~"~I'd tXdh~~~I~n~m~ 1)IBl'tic and have 1 %. DtOUatJDg platCe>. ~hrrg.

5"l8·. i~o . NET ... .. . •... .... . .... . • 79c

GENERAL PURPOSE CLIPS General PUI"(108e di('kll at remarkably low prit..~. Non-

T~~ gr~ron~t .~15~~ ~!:-~~~"o:~;~O\A{;'H . ~'I: 5S~066. 2-" IonR. l aw 1If'"-a<1. liz·. 10 For 27c. EACH . . . . ..

:g-~!74J~· ~id~. ~':"~ '. ~ ~. ~g1!~l:~· ~~nCr:J.a:: . ~~I .. ~ ~ ..

.3c . 3e

5e

H & H PRODUCTION TYPE SPST TOGGLE SWITCH

lligll~t .. ua1ity. l ' ull .. r·

;;~~ ~~tI~"l~iu~i~~ tl~ !ltrandrd. rubber.<"'On.'reIJ lead~ \dth black ''QUOU braid overall. Ji,r.. threadt-'d shank, 'A. lon~. With 2 locknuts. OddlZed black

~~lI_hi:~~' tET ... . 22,

HAMMERMILL 6'12" RECOR.DING

DISCS H ere"s a n outstanding fea~al 10 brao dnew H;]mm~rmill recordiog di8C~. Thesc

r~~~~I-ii~~~i~t,\~I\~ a "lightly hh:ht..'" !lurlace noi>IC than the rnfJ~ t"Xpeo:dvc di!k"ll. but f't'l'f"C'oo ~ot ;]sma. .. hingoor.:ailllor low~t home recording aDd tC:it pu~ They an:: CQMtnlCtil!'d 01 a dur-

~iJ~erb~r.n~id~~1 "~,; mirTnr-"mootbn~"",,'4 " ilh a "'n l'. ·rlor.~a.l (" uni· form coatin,=. Si , c."I"'·OIlu -coI"ro .. "l 1 "~hle Ilal1l' mermill rccordill~ di",,-.c arl' l .... lUlained in a

:~.;!Yi;t~:d~U':J~~ili Ib.\·CIOpe which lIol!t

58-017. Pkg. or G. NET . .... .. .• •. 29c

RECORDISC RED·LABEL VALUE Herr'tII a rca1 hargain \'"Iue In 6Y2'" lIM1li.prof(":ol· !liona! IIi>K::t. Consilll ul .011 gOlUJo(C' aluminuln b.l..~ with 3C1:'tat ... t..'Uati"" . an e:lf.C't!lIent rrt..-ording medium whiclt Pf'Tmltll '1uality Te'UllA. ~~~~~l~~:k~~ir.71~~voJ. Shpg. wt .•

58·019. taCH . •....•.. . ...•.. . .. 14c 10 FOR ..... •. .. • •. . • ••. . ..• . . • $1.20

SPECIAL VALUE IN RUBBER· COVERED HOOKUP WIRE

1Ien-·. a b.uR'ain \'ahle in lin~t qual lo . huolr.: up \\;f't'. ~{allc of l8-gaullC s t rand e ,1 co n l l uctor with a :t~-ial live·rubber eo\·e r i n ..:: which !< tri flo' t';\!<illo·. \ · .. ·f )· Hexible. Vf"I"y .Iumhle. thill fOIlJlrndid ,,-ire t. a remarlr.:abl .. "'my" at our \'ery low prin'. Sh~. wb .• 100 fout t..uil. 2 IlJo!o1.; 250 fool ","Oil. 4 Ibll.

~:T~.~~ ·. ~~ f~.t .~.I • ....•... . . •.• 39c 5S-042. 2.,0 foot cuil. NET . . . .. ... 85.

ANTENNA LOOP SPECIAL A ,·bcttt buy" In a

~u~:~:lrJ~ra~~:ra;~~: pact. ea.n n''''''' .. ·a. .... ly lte i Ol4ta ll rol ot n Y· wllet"C. Ml"3lIureJollly

~~~. :II:\\7i~ · iU~~: reception of Inany ,octs by mlnimlziog ioterf~ocr ix-twroen slatioru. Hi~I"y ell· roctionaJ. loop can be rllrectionallY tuned to ~tioo where r~ptJon i$ brst rrom KOY pal" ticular "Ialion. 1,1<-.1.1 for usc wfth mtdlfet" aDd ponabl_. E liminatOi ti,e nec.J for oUh.,lc aerial or If'TIUnol connection. 1nc.."Orpuralo.l>l perme-ability tuued iron nm~ a.r... .. mltly. Wh.1t

~~~c;t;~s' ~~~' . ~ .~2. I~ ..... .. . $1.20

3·IN·1 RADIO TUNER

~ ~~I-:~~~toPltt~~~ ~7f~~~t~~ ~~'IJ:"~ ."rrial. Imltf' .. \·~ the ~ion of an y r .u.liu. At.."l!'l a!'I a no' ''''" f'<'"fh~ when U\4lf!'(J with 0 o ut .I· .. , r ".·ri .. 1. E.l!'Iily aad '1uiekly III:ttalk'd "irh"' 11 l Ull ,.. ComrJlct.c with In"t.ructio",,-

~I~I:~;~:\~'~"~I~ 8 oz. . 3 5c

BURGESS PENLIGHT

Ilandy ,~tpoc'lr.:rt pc=nli.:ilt . PlOUItic C"'.uc. II~ poc.ket clip. JududelllJulb. Lc:l.$lMucry. Silpg.

7's.!.~o. NET ........... ..•... .. . . 45. 53·031. Ba,..." (2 ...,uirodJ. EACH ..• 4c

92 LOW PRICES-HIGH QUALITY-FAST SERVICE

MISCELLANEOUS RADIO ESSENTIALS WALSCO PRODUCTS

~~~~~i~h=~~~I~~~~;~r=~~ll.dOfe~= quality. the WaltM:o productll. U"led lx-Iow will aid in malntainina; and pre~rving equipment.

CONTACT CLEANER FLUID

~=-:!o~r:=:.d:~ruc.!~r:::. troi&. band "witch" aqd other parts of a radio where uDCI~

~:!~~n.mArlK) r::~~~= "\Vi:r-8CUlub B" to prc-vcnt COfTOsioQ.

~:T1.~~ .. 2 .~ .. ~~t.'~ ... 21 . 43-:1.&:1.. "oz. Bottle ... 29c

CEMENT SOLVENT AND THINNER ,\ uru\"cnal thia,nc-r for all radio. speaker. fabric. and similar lacquer·t}"J)t!' cements. Acts quickly a .. !I01~t on 8fM'aker COOl"!!., voice coils, nc.

:a3~~!~:loO:·:E~I.~ ...... ......... . 21c 43-183. 8 oz. bottle. Wt .• 1 lb. NET .. 4 4c

SUPER POLISH A lruf' ""u~r pnliMh" for l'abinetll. RCQui~ little rubbina;:. Ch"an!l ~ it poll"h~. for it ftmOYe!I old poli!l.h. pea."'" and dirt. thrn formA a hard. dry, durable tinillit that looks like

!le3·;L~~.ozN~.~I.r: . ~I~~I~: ~~:: " . I.~ .... 2 1 c

SCRATCH REMOVING POLISH An tn~-rniou~ blend of stainin" and poli!!hinJ:': ingre(henb. Cover. ItCratche!' on cabinetl4. rndio~ and furniture and at the Hame time appli~ a durable. lum.rou!'l. polished t;nI.h. Will not alter shade of originaJ finish. In hand)' 4 m.

!ri:118~~l" iE~::. ~ .I~: ... .... , .... 21 c

ALL·PURPOSE TOOL BOX

l~ydC~!r. dr:r~:: Ki!l. bo~I\~~~~~ ~~~ double M'Ction detachable automatic-lift tray for hou,.ing toohl, IImall part!lo. etc. IJY.t· lona 4 y, - dl"rll. 6!.1- \\ide. Made of heary &au~ !tted wit h ar~n mar_proof rnamel finbh; dD:'IC fltti!)g, watcrtJKht co .. 'rr. Spfll-proor lock DutomatJC'D.lIy latc he", co\"er when dotted. lias 12" embn"l'ed rule on front ed~e of cover. \\'1th

~.~g'al: \~Ei .. I.I~: ...... .. '" '" .. 7 5c

VALUES IN HAND MICROPHONES CARBON MICROPHONES

Fl • • A. Popular 10w-priC«! Dln'elly hand microphone. Equipped With an on~tT "witch in woodeD haDdle which allow!! You to break in on radio proKrarn!l \\;th your own announC'"emenl!/.. E-OUI)' to ,-'Onn~t. SUpplied complete with cord and adapter:l which fit all tubea eJ:cept loktal t),I.M-"S.

©

~';~~2~,~I:~ : .. 2 .. I~ : .....••............... 9 8e fo~g~!· \~t~'e~~cro~~~n!~i~d~r:c~~o::,.!.c,;o!~i~~~ ® mounted in handle; 10 ft. cord ""jth fronK-type adapter which fits all tubes ~pt loktal tYI"lC"5.

~~t~3l~"i~u~ET~: .~~I.I~~~ .":~I~.h.t: .. I.~: ............ , ....... ...... ..... ... .. .. $ 1 .76 Fig. C. An eJ:C1!"lIcDt, compact. wel1 -built microPhone for home use. Complete \\"ith adapters and cord. H3lI pU!lh-bunon I4witch. M etal ca.-.c mounted on pedestal with felt ba..'k:; J%. hiSh.

~~a..pjC; :.t:J N~T.. ~.f . ~I.I .t.~~. ~:':": .1~~~~1. ~~':'~". ~I~ .. ~·.t: .. ~ .I~ .•.....•.... ..... , , . 5 ge DYNAMIC TYPE MICROPHONES

FI,. A. For home U!IC. "IRh output; minimum feedback. Built-In ~ ® 8Vo lteh In handle ~u cutling In on radio pm~ramM ~\lth your Own I announCf!mcnts . E;ual)' connected to radiO ~t or amplifier "lth

~":?3k2~·:'Et~ .~.ft: ~r~: ~.,:~ .. w~., ~ .l~ .... .. •• . .• $3.10 \\ Fig. B. Q U AM MIKE. A good quality lugh impedance dynamiC •

~~~ ~!s~t~~~Jr~C:;!I::ilit~~het~~iJ~':::~~~rr~~:~:60~~8~~~:I~:' output.- 50 db. With 5·foot cord and 'phone tiPI'. 51,12- high . ® ~J~~1g0:\e:r~~ . ~~. 1l~ ... ... .. . . ......... ..•.. ... . $2.23

TELEPHONE TYPE HANDSET A be-autlfull), made combination earphone and micr0fchone handaet.

H~n:'"3~::!\o: . . ~l;h1:r f'~~ rui reproduction ~cc frequenciell. 2.000-0hm earphone has Mturdy. powerful magnM. Mike and earphone aTe connected in 1JIcti('!IJ but rna), be altered for U~ IK'paratcly. I..c'lI.. .. cord. SlIpg . ..n. .. 21M.

~:T~.~~· ... ... ... . s 1 0.75 "AIR PI Lor' AIR CONDITION

INDICATOR A ",~II·built. aC'CUtIlte in8lrument; ",ho"""11 tempn-atut"e' and humidity on lar~. C'learly let-

:Y';.1sb~lljl.m~~!ih~all~~1-; diameter _ Shpg. wt., 8 oz .

~:C::'O .~' .......................... 46. ICA ALL·WAVE

FILTERVOLT HEAVY·DUTY TYPE

A n effident filter to elimInate noiae·inlcrfrrrnce from all ty~ of electrical a~8Iiancn. For I 10 or ~ 5Ia . v~ltllj lh.1C z orll~: SJIIIg. \\"t •• iv, Ibs.

~~T37~ .... . S2.~S

2 TERMINAL BINDING POST Two-teTminal bakelite hln!llng po!'t. Ideal f01'

;:di: 'b~~~~~e~~ k~:~~

mountinK. Wire!! fed

~1:.u:~:~;'-ET . . 2 5c ELBOW SUPPRESSOR

Elbow-type (':arbon flap· pre-uor . \\'111 eliminate noise caud by ignition.

~1:~6~I.O·~T~~~.!I: . 9c

ICA NEUTRALIZING KITS

DELUXE MODEL KIT The ~mplMc Dl!'lusc nf!Utralizing tool kit. Contruns 21 tooh... man), are double~ndcd t)'pc1I-maldnl(. total of r{"ally J5. which pet'_ mit alignment and ad just ment of an)' !Ict rcgardlc!lS alaRe or make. FiuN into comp."Y"t leathe~tle C'a!lC" which fold~ to lOVz- J: ..... IDclud~ lK""rt'wdrh-cr with flexible Mhaft for

~In~~~:re:d~ 1J=~;:.m~~e;~!I':.lli:tn::;r~.~,:!~; driver with metal nib: ~. and 'A" nut \Hcnch; 'A - h~ metal !ride \HC'neh; 2Y.t- In!luldtro tocrl'wdriVeT with metal nib; 'A - hes sloltlt'd immlnted \'!'Tench .cr~wdri\'(~r ; ~. hex inI<ulated nut n"rene"; 7· and 7 'h" insulated ~ .. re\\'driver"; and many other handy tools.

~!r.'iOi·. I~h ...... ... .... s 11.76 STANDARD MODEL KIT

Covers almost e\~y ali.c:nment job. t"' In!lulatrd tool~ tel~pr! Into each other to form only 4 uniu. Includell 14- inSUlated hCJ: \.Tench ~~ lWIuarr nut \\T("lleh. 2!.i· 1K"n.·\\'drivcr \IIith

:.~t:~h~~'aK~il~i~t.°~II~\~~:~~h~I~~~~~I~~d ~~ ~ri~:~5;'!:;\~ri~';:~W' !I~:I~!~~e~i~\.~~~!.~ metal flCrewdriver. III \'elllpockcl l('atOe-nolle

~~:~~:\~E:'~: ......... .... $3.82

SPECIAL VALUES IN SOCKETS

ALLIED RADIO CORPORA1"ION, 833 W . JACKSON BLVD., CHICAGO, ILL. 93

.:,':-;; ~~ .iv~_.1 ~ II!I~) I" r;,._ ItIIIJ l' ~1'11J ~ a..-r .. ' I IJit-t-JIIIIII I

Eft1d~t fluoretlC'ent lightfnlt flood!! WOTkIDf{ ItpaC'e ",dth daylh:ht intcn!l.ity. Stop,. \Yast~ful heat radiation; furuisht"4 more and cooJt!f' liftht at 1("S.~ CO!It; a .co.".-att ftuor~nt lamp Pfo\';d~ aiRlOo:lt. a.:I mu("h light a!l the ordinary .tanelard 1 000\~'a't ifl('1lndt.,*-"eot bulb. Prlorltl.s. tAr chr~ fixture. dt,.playffl here a rc aVdllable only OQ

orders accompanied by blah priority rauug:t.

---- - -

@ @~~~3 ©'TCt=:==-_--- -

MITCHELL 204S ® A hi.:h po\\'~r-f.nctor (.'Orn"t"ted (9)99$) 6:1:t.Uft, kisridly COrul\1'"UCtN from "Lum~n1te"," a tou",h and IIIluruy ~tJol!ltltute for jtt~l. GI~rIling \ ... hit~ rl'th:~<'tor; grt:'Y tQ • .unt:l oUler fi .. bll , Krftector dC!CIt:'n Ilull;t"Ct 10 C'hanKC at any lime to rD~t \VPB >lpct'ificationll , (h'rrall ~I.C' , 48"' Ions:, 13· willi', 1· higll, UnIJcr\\'ritl.'1'"appro\'l"(I, Ea~y to in",tall, Complete' \\ ill! attadlal

:r~~~~tll\~~;!I~-f~~~1:~!'k:~~~nl'o~I~~.{i~~o':!; mounun~ on f..'Cilim: , U~ll t ",'0 lltdndarfl ro waU Ttl tluorr:lC'rnt lamp!l, For 11 001l,1ii V, 60 eye,. ·,C, 1 .... ·>1$ lamp" , Sh'rpitiR \\'t ,. 13 Ib.,

~~T~2gf ~~~~c:~1 .2 : 3 .. :.$11.37

E. C. A. MODEL 1 S 17 ® A hilh (lnwe".factOl" ('()fTpetc:'" tilll Un:' wi, h "e1n()\"n1.J~ "Mvonhe" fd\~"lnr. lIaJt l .t;- n t Ofl lor broot litl:IH10lf di"tributlon . I{~t"'''l''t.tll'' ... rfaCC! ill ... ·hile. (Jute" finlzlh i .. ICU'Y efla~1. Ih..ftfx,u' dtc"Ki"n ill :lub;n" 10 ("hath,::" a' allY

~~i~~' a'~a~J~ :~·k~·~r::Jfi5·f~i~:I~ai~~~C!~~ pllf'ldy \\ired. Starter,. maY be chanl(l!'fl \\itll·

u~d::ri~~,.~ 11~~~' i~l[tU't~~~a'~n~~: ~~r( t12~ial~Kf F~~el ~2~i~!I: ~~~~\",:\i.!~ IA--.. ham .. , Shippiq W'\:iKht, l.5 lbt,

~~T~ .~ . : ..... . .. . . $11.97

ECONOMY HI-POWER © I'rotid~ f'''f!iC''1''~. C"'nIIl . hi.h .I~\'f't RrlW'rat 0.",in"('lional lh:htint:, '.If'a1 \\ Iotof'<':\ pr hh:h·ib· tenllllY illumination I" a Iln lne n-quirctnt:'nl ia :ehul)/'. fa. , •• "e:". "ar~ .. , t"IC, St IIrdil)' ron, "Iruc-tt"ll, fh: ftl..-tor !Curhlf'e tiui"hrtJ in triple-coat \\ hitt hakrol enam,·!. "'it h n'plal't"Obie 2i.tatteu

:~:'e l1!~':~:~~!!~I~r; '\{i~~~~ll ~i-:N,~:!:\~~t f~~; J~::~"ih~~l'''~f.~k~~;..~J~~n~~\i~. T51'i: 4?,'idt~~ II 'At . : l __ i~ht, bYa"'. c.;cubulete \Vith ('Ord ilnd l ,lu l( . I.~ ..... hllnlJ:' . ",,'or J lU-I 2.5 "olt .... 60 c )'dCl!l ~C . ShillllilU: .... ci.hl, .12 It.....

~~T~2tf f.A£CA~"$1. 0:.~S •.. $ 1 0.2 5

G. To C. FLUORESCENT BALLASTS r--------------, Comp.'lrt nllorf"SC'rht lamP lIalla..t •. Easily mounlrd in cou"ellli"baJ l'hannel!C ami tistu~, 2 · lamP haJla:ou ale IJOPuiar "LulIlIl · Feliow" 1),Pt.'1I, ~urmaJ 1)00wer fac.·tor tYfIf:14 are .IiiU-()lI% ('OrYf"('tPt!. .. \11 hi"'h IJU\O,t'r IM"tnr l)'pr>I are 9(). IUO~ O;,",-,,'1ed alld mft't pflwl·r f.'Om»an)' ftoQuin:mrnt".SdeltjtlcaiIY dt'1li",nC"d for IUnK life. Ca,JIY !!lartinl(. and ~ffident u~atioll. "roverl)' lrl'atC'f1 to minimizr lIum nb""tioa. Par 105·1l5 V, 00 eydc opcrauuQ.. ~r'o .. nl.l : 1 ... ",I1&Jftll 10f' flUOn'!",.nt fixttl~ an! a,'oUlabh: ow)' oD pOuli\y u. '/\IJ VI lot:th:C,

·looB2 IIJO.waU ballaA i .. nut IoD5.:-fcllu\\' tyJX!, lJoe .. nut ort. .... compensator,

2·LAMP BALLASTS--HIGH POWER FACTOR-WITH COMPENSATOR

780806 1 15BL I· 78 .. 807 20BLP 78·808 JOBLP 78·809 40BLP 78·810 l00Bp

780811 1 ' 58 78 ... 81~ 20R 78~813 J08 78 .. 814 40B

'.LAMP BALLAST-HIGH POWER FACTOR

, '.15 I 1~,,~8'4~ ,

:~: I A

I 2 15 2.82 15

2.25 1· 2U 1 ~s.n ... "IH·. ~ \ 2 ~.6~ ~.~5 , ·JU :~nt:: n~: ;~~ : c • 3.7~ 3.18 1·,,0 C 5 3 . 7~ 3.18 1. 100 2~3~I JIh.. l~i)!.4" C '0 7.00 6.00

'·LAMP BALLAST-NORMAL POWER FACTOR

1'·15 I \ ·20 I ·JO 1, "0

gl 150.57 r O.

4B-.57 . 48

-' ~ . 10 1 .80 A ~ . 10 1.80

G. E. TYPE "F" LAMPS G~II\1lne ('".enft"al EIft'1ri(' nuor~nt lam~ f(W' all fluort' ..... ut firtll~, Fur· ni.,h nun-glarinl-: li~htfl"Olnrntireriurfao.'C Wilh (", '('n djfttl~on onfl 111,,11 iIIuminalion , Uu 7 lot prlc. 'or 'amPI wh.n purcha •• d with an, ftuor •• c.nt flatur. which Is IIst.d on this pag ••

SPECIAL VALUE fLUORESCENT ADAPTER

~ow-Ihe brnrfih or modern fluon=~t liqlltinlot at unlM·lj('\'ahl)' low COIIt I Thl:e ;lIna.l:in.: lIe w flllor ....... : ent lamr. fhuure I!CT1eWW lulU auY Itl.5 · ll~ ,·,.It. ftO ~· ... Ic AC IIOCket , A. <'3.lJY to in,.lall a,. a 1i"llt bulh, Smartl,. .. t)·I~1. bllih .,r OUt'-ltif"C'e IU'~" ... I ",_I. In· .. iole' n l rrtl ... ·lc.r lim"lH:'d in ",ltilr f'lI am'l. ~"alle ill metalli ... hronh:'. l'~ Olle I~" 15-\\;,aU nUorClH."rnt Ia.mp. Prodlln.~ :-Ia,ne a.,I .. 0 \\-;.,U:.I ordinar)' li!;hI , I~ lamP, \Vt " 4 Itw .

~~i-~5gF ~~'i:~i:~2 : 9L .S2.75

IliIL11 Quallt), fluurl·~'CtIt .tarll'r .... wito:h and 'l'UCko.:t a:.:.cwbliCllo, A "t"ta~c :<hpJ,:, ",·t" IS (u,

STARTERS-fiG . A

_- N° · ~I..!!~I W.1h I·EeChl ...!.2..!!!.

78 - 850 "-52 l -Sur2U} I ~:::~~ ~~ JO,"<X/" , ~~~ S~::~

LAMPHOLOn SOCKnS-"G. I No , .......--w-!tt. _\ C o-.;r- Ee -:'~_-I t"O "o,.~

78 · 860 { U,20 } Hied. 1' 6C S 1.4 4 7 8-861 .m ..... -&0 \\'h h. laC 1.62 ~ ~ ~hit '~4C 3 . 06

STARTER SOCKETS-FIG. C t-Of u.oe w i lll is S,.'" an,1 18-8(.1 huhl,.,." alJO\'e, 78 ~ 853. to for 51.17 NET EACH , , 13c

STARTER SOCM£T & lAMPHOlDf;R-"IG. D 78-8651 (.Do.--JI Ala.·' 128C 1$2.52 78·866 V O or.aO Wh!".' 30c 2.70 7 8-8.7 I OU Wluu' S9C 5.31

70 ~"'00 . Fluot'rlK'f'nt Lial'll Filtf"!', DC'!'icned to ltuppr\!'\t3 6uorc~cDt Iilllht noi~ In ratiio. NET . .. . ..•.•..••• • . .•••. . . .•.•... • . SSC

94 SPECIALIZED SERVICE FOR INDUSTRIAL AND GOVERNMENT ORDERS

All Local and Lon9 Distance Phones

HAYmarket 6800

NOTICE TO CUSTOMERS No prict' (or any arlie-Ie listffl or d~ ecrihed Ilerein ~s the ceiling pri~ (or that anicle a s determined under lh~ appl icabl~ ma,;imum price retiCUlation i!\§u~ by the Office of Pnce AamlOlstra· tion. As required by that Offi~. we win. upon l'rQuC'!lt. furnish you with a state-

::r~~~ o!'~~~:WU~b!~~~'I~~ )'ou inqulre.

ALLIED RADIO CORP.

USE OUR ORDER BLANK To ~ handling of your ordr-r5. please' u~ our order blanh Unle~ you have your Own purchase (orm •. Extra order blanks are in· eluded with each shipment and \~,;11 also be scnt to you promptl)' on request.

HOW TO SEND MONEY It is sa(C'l't to remit by postoffice or expre~ money order. ba nk draft or check . Avoid ~nd ing coin or curnncy. b ut if necessary. he sure to rcidster your letter. Because we use postage mC'ter machj ~s for our mail· ings. plea3e do not remit in stamps except if nC'Ct.'s::&arY on verY small orders.

PARCEL POST SHIPMENTS Compute postaJ:co (rom table at the right. CatalOlil: IistinR:J give 'weights. Save C.O.D. f~j tJy remittinK enough for postage and insurance. We ship C.O.D. to cover an}' shortage and refund any surplus. To prol<-ct. you. we insure all parcel post shipments.

ALLOW FOR INSURANCE

~O~Ot~S~.oo :::::::::::::: : 1~ S25.00 to 550.00 ............. 1Sc 550.00 to 5100.00 . .. . . . . ... . ' .25c

EXPRESS SHIPMENTS G~neralors and Motors. Storage Battnies nnd Mintilar bulky equipment must be dUppcd by express or freight. To assure safe arrival we prefer to I!Ihip all radios. sound systemll. transmitting: tubeJ. ~st units. and other fra~ile items by express. If there ilf no expr(!ss agent at your location. ~ sure to spec.jfy your neare~t express office. Do not include c:< pre~ chances with }'our o rdt"r. Shipmeont will be made collect .ilt no ext ra Charge. l'li:<."nt collects exact a mount. All eX1lre~ shipments an indurcd.

FREIGHT SHIPMENTS H s~ is not c~~nlia1. frr-ight ~rvice i~ cheapest o n hea\'y shif'men~. Do not ~nd sitippinK CharKC$ unlel'g there is no agcont at your station . Specify nt"'"d.rcst freight station if there is no freight agent at your location.

TRANSPORTATION ALLOWANCE ALl~ rI!.D otrers :\ 2% tran!q)nrtation 011· Im\'anC't" n n a n y C l:r h Of C . O. D . f lfflE"f for S .... n .uh tor nlOf"r. TI Ii~ :l ppl i(" !O on !.Chi pment~ made anywhere ill t ile l lni tcd Stat4"!.C o n a ll mercha ndise except K " ight amplifiers and I)ublic address $)':sLem :s , National Co mpany merchandise. and items marked "Post· paid.... Take ad,\'antasc or this saving.

ABOUT PRICES, SUPPLY AND PRIORITIES PRICES. Prices in this book supersede prices in any previous ALLIED catalog. Due to prevailing uncertainties, all price. are necessarily subjal /<J change withoul ,wtice. We must also reserve the right to add any Federal or State taxes levied after this book is printed. As always, we will give you the benefit of any price reductions. YOII save at ALLIED.

SUPPLY. Our stocks are exceptionally complete. ALLIED will continue to supply without priorities all available parts, especially for repair purposes, consistent with WI'B regulations. Wherever possible we shall ship alternate units at current prices if original selections are out of stock. Continued maintenance of our stocks, of course, depends on allocation of materials to the rad iO indnstry. All ",crcllandise. Iherefore, is offered slIbjecl 10 prior sale. In fairness to all our customers, also, we may finai t necessary to limit the quantity of an item supplied on anyone order.

PRIORITIES. In ,-ariolls sections of this catalog we have indicated what merchandise requires priorities. Supply conditions, however, may change from day to day. Therefore, all iums i1l tilis calalog arc offered subjrcl 10 priority requiremenls. Specific priorities and delivery cannot be determined In advance. For hest results place your orders with your best preference rating. If the complete order is not fill~d, detailed information Will follow. An alert Expediting Division assures you of fast, intelligent service and the most complete shipments possible On all your orders.

OUR TERMS POLICY ON C.O.D. ORDERS Our •• n .... ' terms of ule .re cash with order. Catalog prices are net. F.O. B. Chicago (exttpl where nott·d ). A.II trade dlKounts and _ 2% cash discount have already been deduc:ted from enry price In this book. Our NET catalog priCt"s arc t~ prices )·ou pay. Scond advancc r("mit· tance on items Dot in our catalog. See column at riitbt for C.O.D. pol icy.

(1) Include full remlttanee with mall orders of less than 51.00. (2) Inelude _ minimum deposit of 25% with C.O.D. mall orders of S3 . DD or more. \Ve re!!ll"r Vc t he ti2pt t o d~duct transportation both \\-'a}' S if dC'liv~n' i:t not a~pted through no fault "'of Dun. \Vhctocr Your order is large or small it will n.oah'e the same careful handling at ... t LLI ED.

HOW TO ESTIMATE PARCEL POST CHARGES ".c •• g •• Under. OUnc". All •• 1!h c lE.ch 2 OwnC"

WEIGH T 1 '~:~:. 2n:O ~:n · lrld~::."\~02::.1 5tllooZ:;H~ ,.~~~~; ji~~o~ ~:.lIt~~.c:.n. I N p OUN OS 50 ml. 150 mi . 300 ml. 600 mi . 1000 mi . 1400 ""I. 1800 mi . 1800 ""I.

I

I ~ ec i 19!:

IIi IH IH ar 2 I ~ T 14C J I C 7c i c 3i

c • 12C 1 ~ 21~ 4 C • 13c 1 4 II c

• 14c 14c If IH I in ' rc

II ifg 7 15e 15e 4C • 16e 16e 2 C H , 17c 17c 2 c R c I $1.03 II 1 Be 18c 2 c 1 . 1 4 II 19c 19c

In I 10 rq. n~ Til I:U 12 21c 21c lJ 22c 22c I I c ~ SI:n

.47 If 23c 23c :13 IS 24c 24c ----~ 25c

1]1 .. :~ II ,~ , 1.17

I~n u 26c • 26c 1.24 II r c

2 ie

!~ I ~ c 1

8 \:n' I:U to ~ 2 e 1. 2 c 1.45 .24 f'ar Eac h Add1~ A • • A •• A •• A •• A •• --xid E.tr.a 1b. lC I IC 2c 3 YJ:c 5C 7c lie 11c

HOW TO ESTIMATE EXPRESS RATES (Note: Add lOc emergency charge to rates below for each shipment.)

Walght Mad rn " rn Oiata ne: . In Mil.. . ~ Q .. ar ~I~~~~~~ .. _ 1600 2~

5 $ .25 $ .25 $ . 3 8 $ .35 S . 35 $ . 4 5 ~ S . 65 11 . 30 .31 . 4 .50 .58 . 6 5 - :84 1.1 \1

~: : ~~ :31 : 3 ~ :~A : ~o d 2 U~ U li ---*-~I~ :~~ ---:¥s- 1 : ~! ll : ~: I~ 11::13

rn2:~i9 .. • 2 1.02 1.19 1. 6 2 . 8, 2 . 43 .4 . 5 s. . § 1.23 1.44 1.9 5 '2 2.95 . , . 5 75 1. 1.63 1.92 2.6 2 • 3.98 . .5 _,_._ ;~~~~ 3 . 7 4.76 , . 0

~~~ t'b:~ 1 1.60 2.04 2.42 3,36 3.ge 11 . 17 7i3~ I ' 9,93

ALLIED RADIO CORPORATION, 8]3 W . JACKSON BLVD., CHICAGO, ILL. 95

,

COMPLETE INDEX A -¥~~T:,::~'.~~ .. ::::g::1 Adapten .•..•• 0 •••••••• J:! Aerial EquJpment .•••• :-.3-:,7 AlbulII~ •••••..•..•..•. M~-M6 A1llP1ment Tools ••••.• 19. 93 Allied Books ............ "7 Amatf>ur H.Ddbook~ •• ~S. M9 Amateur Sets •• 6T, 68. t'u'", 3

.Ain~~se~ •• :::::::::: :4~~-f~ Analyzers •••••••.•. j.ll1. :i3 Appliance Telters ...... S. 9 Arc \\~elden •••••••..•.. l;j Audio OllClllators ••..•... ,·9 Audio TraIIstorme ...... 30·33 Auto

Aerials ••••••.••.....• ;.j Cable ••.•...••• at, 5i. :,S Radio Accessories •• jj. ;-,K Radio }·lIter •••...•..• ;-.s Suppressors •• , .5j. j8, 93

BAn'LF.~ ............ ,9-~~ Ballast» ....•.... 0.-1. ij

Uatterlt>:'I ••..••..•••. 13. 1-l Charl,.rer:t. •••••••••••• It-It; (,lIp~ ....•.•.••.... IIi, ·Ii Jmmillators ....•... 1:1. l:i .'18:..hll,ht ........••.. 13 "'.cks ......• 0 •••••••• 13 J'lu~!i •..•.. _0 •••••••• 13 '"')rtable .... • ...•..... 13 ~tora,e .....•.••••...• 1" Tcslc~ ............ 13. U

Bias Cell:s •..••••..•.•.. 6 Binding' f"O!4tll •...•.• "6. 93 Blow Torches ........... 52 Books .............. S. 86·91 Urldge. CalJacity ...... N. 10 Bulbs •..•.••.••...... ti" 3N Burglar AI.nll •..•.•..• 62

CABI:-."F.Tf< II. 4~. 43. ,9-~2 Repair Kit •.•....... :'.0

Cable •........•• :i6. :,I-:'.ti .\ecehOrles •• .a ... -Ij. ·I~. iii nIal ................. 36 Interefllll ....••..... :it, :..-. ~(lcrophone ..•.•... ;.1, :i:'. Speaker .•.•.•••.•. :il. ;-.:'.

Calculato~ •..••...•. 1~. !i6 ('all S,slems.69·i-l. lIat'k (·U\·.

Carbon Resistors 11, li-19. 1.2 Carrying Cues ...... i9. K:l Chanalyst .............. i. ~ Challters ••••••••••..•• 1-1-1ti

Bulbs ................ 6 Chassl!'. Bases •••.••. -12 ... 3

Cradle ••••..••••••.•• :.1 Punches •••••••••••••• 50

Chokes Filter .............. 30-33 }llate .......... 30. 33. 3:i R.F ................ 3t. :IC.

C1 rele Cutter •••••••••.• :i0 ('lips ................... :l-.. i t.·ode Equipment 16. 5! ••

.••••••••••••••• 62. 61-6t; Colts ••••••••••..•••• :; ... :t;-.

Dope ................. :11 Jo~orm!' •••••••..•••• 3:;. ":i Wlndf'r .•••..•..••...• 92

CommuuleaUoDs Recp(\'''1'l4 • . . • • . . • . • •• Si, SR. t.'u,·. 3

('ondensers Fh:ed ....... !O-2j" !t1. P:! Trimmer •••..••..•. :hi. :ii Varllble ••.•.•••••. 31i. :ii \'Ihrator •••.•.• :W, 22. 23

Condenser Coup1J Ill's •.. Jli. 3 i Connector.. •. 5, 13. -l"--Ii. itj Converters .•••••••••. It. 1 tj Cord Tips ............ 46. 19 Crystals ................ 39 Crystal C&rtrldces ....... 08

Detectors ............. 59 Sets aDd Kits ........ 5.

D~i!:!E.~~~~~.:iti: 3i<: ~g AC('("s,.owril·s .• 36. 38. 39. -13 LllhtH .............. 6. 38

Discs. ReconJlng ••... ij. !'! Prlll:l ....•••.••..••.••• :,1 Drill (;allue ............ :,0 Prill I'n'~"' •••••••.•.•.• Iii Dry (;t'II:01 .............. 13 DynalUic Dt'lIIolI:ltrator... U

EI:~I!:-.",~T~~ ••..... 13. 15 Intforrrrt'n("l' •••..•.... 53

ExteD:sloll Cords •••••• -II, 5 t

FA~)( l'U\\"er Equlpm('~t (um"rh'r~ ........ U. 1-1

(:eIlf'rutuf"!C •.•..•.••••• 1:; ~Inra~l' Rattt'rie!4 ••.•• 1 t Windt'hargers ..•..••.• 15

"·ll·1tl C .. II ":xcllt>r .•..•. 81 .·118I11rllt TrIlnsforme~ 31-:tl "·iltt·r... l.Jne ...•• 53. !t2. "3 .·illf'r ('Iwke!ll •..••.•.. :UI-:I:; .·Ia.hllght .............. p~

UaUeric:l ............. 13 Bulb:l •..••••••••.•.•. 6

}'luorf'S("'nt Fixture:l Hlltl Acc,,~~rie!l ••.•.•..... ~-I Filter ...•..•.••..•• :l3. PC Lam),s .....••..•..••.. 91

Frequen('), )(odulalion Af'rlal .............•.• ;-.3 S(lf'ak("r!4 .•.•....•.... SI

"'f('quent:"y ~tandard ••. !I. liM rrY!llt.aI~ •.......••.... 39

.'rtrUnn Tapp ...•..•.... 11 }'U!4e:l at l'uuntin;..~ H. -I.i. Ii

CEILING PRICES Price. ht thl. catalo9 co .. -f_ to oppllcoble 0 r A "'911IatI0ll'.

5 •• "ag. 95

G }:~t;~·\-g::;~ .::::: ~~; ti (:rlll Clulh ............. 12

H·\LI.IC'RMTER!; ..... ••...•••.••• . 1i1. l'u,·. 3

nanJwa~ ....••••••. I:'I_I~ Hf'adphollf'!\ •...••.•. . r.! •. ti:;

.:\l·t·e~"IOries -I:i. lti. :.!I. ti3 Hrarfnl' Aid A.ece:l~rle!4 -I. 13 Hom"l ••.•••••.••••••... ~o Hushatone •.••..•.•..•.• 59 Hydrometer •.•••.•...••• 11

I :\)~~',!i~t1:?~l~I~I;;i~·I::-I:i. ~: lulen·lIlII. ~ystelll!4" •••••••

............ i ... BUI'k (~l"er Inli'rfl·n.·lu·e }'lItel'l4 ~.J. !t2. !'a I, t·. Transformers .•...• 3-1 In\'erler:l ••••..•..•..... 11

JACKS .\:-."n I·Ln;!' ... : _ . ••••.•••••..• ,1.1. II ••.• f)

fCtQ~~o; .:::::::: .. ::: :~::!·._:ii~ Knol>1I •..•.•...•...•. :;~, :19

L AC'Qn:U" ........... t~ 148111115 •••••••••• 11. !l"

LaIlIIJ Cord .•••.......•. 5" J.Jne Uallasts •.•..•..... 6 Lint' Cords ........ fi. -II. 5-1 Loop Antennll!4 .•••... :'3. ~~ Lues ............. -Ij, -16, -IS

MAG:-."ET "'litE ...... 5;; McElroy Equlpmcut..

•.••.••.••..••••..• lit. 65 )(eters •••.•••.••••.•. 11. 12 ('u~s •••..••••••••• 11.12 KIt. .................. " Ilc!4I:01tUf14 •••••.• 11. 12. HI

)1 it"rometer ..•.•••...•.• :'.0 )lh-roIJiIl)olleS •••... iIi. i:". !I:;

.. \cce!4S4)rles ..•.. I:' •. iii. ii (·ahl ................ :,1. :,;. f;talld~ ••............. ii

}Inhll .. 1'.\ ~~· .... t'·I11"""" i:' l1uuullllg ~lrips ••••.• 1;,. IIi

NA~If: 1'1 .. \Tf.l< .. ::S. !~. I! !\l'l.(JI(·S ••.•...•. "". M.I

Xeedlt' tcharlJl'lll'rs ...... s;. ~t'uu L;IIJ1p~ ..•.....•... ti SNltrall7.lng T()OI!4 .... HI. '3 ~uhse }'lIw~ ...... :.~. it:!, 113

O~(,1I.1~.\Tnn~ ........ i:11I O:K:llloJ:ra.IJh!4 •••••••• I-~

p.\(:J:-,"(; f<nln:M": ... ,;!,.,:; I'allels ..•.•••....•.. 13

('uttt-r ......•.••.•...• ;,0 I·h"n~ ............... ::.9. til

.\("'ct·~orh·!4 .. 15. ·hi. ;.9, 6:; I!honoltral.h .\l'Ce!i!W)rif'l'i ..

... I:"" •• -Ifi. i:i. il4, j~, ~-I_"ti t'..ases •••••••• .o ••••••• i9 )tutllrs ....•......•... i9 :\l'i'dlf'~ ............ i:i. ~:i I'It'kIlJl!4 ••••••••••••••• is IlP('unb ....•.•. 66. NI. M;, Ikl'unl .\lhulII:I ...... sl-~Ii

I'I.ub) ('ell iAlui)) ......... 1i2 "ickul'l'i ......•.•....... iN 1"II .. t Uu.bM ..••....... fie :,,,

Culhrlnlt Kit .........• I:! ~11(·k ... ~. Jrweb •...... 3M

'"hilI.' Caps ........... ':" 1:1 I"Ut'" .........•........ :.1 .·Iu.g-in Coll!4 •.•••••. . • .. ~~

fonns ..•..•.•••....•. 3., I"lu~~ ... 13. II. "I--Itj. ;'Ii. i'; '" .. t('utl"fUt'lt-r" ...•.... 21i·2!1 "I1\\"'r 1'13111:4 ••••••••••• I:. I· .. \\t·r ~lIIIIJlil'!4 ........ 13-lfi

Imlllsirial ....••.•••..• 1ti l'II\ft:"r Transronnrr", .. • :W-:'3 l·rllJe<'"lor~. !'ot'M.·aker •....• 1'40 I'"hlle .\lltIrt·s:4

}:'luIIJlllent ••........ 6!.-i::

110" lH:n:1I ........ I';

R'~~:"~: (~~.t~.':'-'·".·.:;I: ~~ n. Y. "tllI~ ...•...... ::1. :1:'.

J:f·t·lIrds •.•....•.. IiI). S-I. t4:i .\II'I1IU!4 ••••••••••••• l" I-"Ii ,'ahlll"IS .•...••.••..•• Mti Carr,llIg ('3"0 ......... N':-. Codt' (.~our~ •.•..•.•.• iii;

IWl'ordlng .\cces~ri:!, :." oJ

................. f.' .• ~. P .. 1tt'I·tltlt'I'l4 ..•..••. Ii. 11. 11. Iii a:l'llnl:4hln.: h:it .........• :in I:t·la.,· Racks ...........• I:: Kf'la.) M ............... 39. 62 1lt':4i:4tun; .... 11. 12. 1 i -lU. !'2

(,,,lor Code (fuJde •••••• Ii 1.lne Cords •. . • . . . • • . .. ti

Rheostats •••••••••...• .2i -:!!I

$"REWDRI\"ERf< ..... ,.II.'.~ fi::erTlce )llnual2(.30. Hi -9ft

~h.ft Rearing •.•••.•• :16. ::i ~b.ft COUJlIIDC ....... 36. 3,

Sbleld. Tube ............ ·\3 I!hleldlD~ ............... 57 NI;:nal (;rnf'rator!4 •••... i-I 0 1;1111.1 Shlrtt-r ..•..••••. 68 ~i'mal Tracer:. .•.••.. " .• i·9 ~Ilde-Uule •••.•••.••..•. :,0 :-:nup!4. :-:llItI~ .••......••. e. :-: .... ·keL"I .. fi. :;". I t. ·I,-.~ U:!. !I:; ~lIckt't Wrl'lIche~ .••••••. :;2 !'otulder .••.•.•.••...•..•. :i:! :O:lIldf'rln;: Irun ............ ;.:! ~,,"nd ":lluIIJlIIl'1I1 ••••• Im·i:; ~'Jaa:hl'Ui •••.....••.. 13. :'.1 :-:lK>ukt·r... . •.•.......... SII·S:;

.\c(,b."\Ilrlt.·:-- ... I=!. l:i. iD·s:1 ~1:llId!4. )1I(""'llhllll(' ..... ii Jo'irel Ruh~'!4 •... , .... " .• :'.I~ :-:llIr:" ...... ' HUltt-rit·s ........ 1-1 >=-UI'I'rt'So-.or!4 •• \lItO .. :.i, .-.s. !I:: ~\\·ILches ..... I. 16. In. II. itj

RADIO TRAINING • 00 k ...... 'I' Code Equlp ...... t. 16, St. 62. 64·66; Tool.. 16. 4'-52, Kits. 5'·62.

T-\I' .\:-."n nit: .... :1" ..... '.1 Tal~ ..••........•..• -II

Tt'I-:l'huue Hantl fo;(·t ... : .• ~~ '~lrl' ..•.....•.......• 1 •. 1.'

T"rlllinul ~trl .. s ••...• 4:; • .jli Tt·~t .\dul)lcr!4 ........•.. 12 Tt'!4t CIII'" ............ -Ili. Ii Te:ol t:llul,ullt'nl ..... i-I:!. I.i Tt-ftt J.,t·ad!4. l'rod!4 .••..... I!I Tit· I'ulnls .•...•••.....• 41i Time Switch ............ Iii Till Jacks. 1"lulo'"!4 ...•..••• I'; Tune Control:l ......•.. 26-:!!' Tulle (;elll'ra tor ..•.•...• 11; Tools ............. 16. "!'-~,2 THol Uox ••••••••••••••• !t3 Trnn!4forllll'l'l4 .......... :IO~t. Trl'nslln' }'Intll'r bia~ralll~ !'I Trlluble j.tla:ht ........ -I I. HI TrUIIIIJf't~ .•......•...... Nil Tube!4 ..•.•••.....•.••..• :!-:'.

AdalJter!4 .••...••.•.•.. 1:: nalla:--t •. .••.•••••.•.. 1 CaUllwtp Kay ..••••..•. : • Indu":lrial ............... :0 I'hnln Ct·IL •....•.. 1. :i. 62 ~hiphll'lo ............... t3 :o;.Ot.."kl·L"I .•.•.•.. II. tl:!. !I:l Trall!\lUillill¥ ••...•... I. :i

Tube Te!loters •..•..•..•. s. P Tubing ....•.•....••.•.. t:i Tunxar Hlllh"l ..•..•...•. I. Tunln:: IlIdil'atul'l4 ..•.... 3!1 Turntable!4 ..... ~ .•.••••• ';1'

V.\t·ITll TI·n.: ""I.T-~1Jo:n;"!'ot ........... i-III

"arfable (·I'"III·IISt·~ ... :.Ii, :;i '·urni ... h. Wrinkle ........ -I:! "Ihralla('k:ol .....•..•.•... II '·Ibr'ltors ..••.•...•••..• ;,s

('undl'l1!4t'r:4 •..•. :!O. :!2. :!:: '·I~ ..•...•.••..•.•..... ;-.1 '·"lIaJ,. .... hh-IIIt'f14 ...... li·I:'

H.t'I-'lllalur!4 ..•••••••.• 3. Ii ",,11-('''111.)111111111-

IlIeb'r!4 .•.•.....•..•.. i·1:! ,'uhulIl' ('ulltruis ., .:!ti_:!! •. )<!n

.\cceuorll·!4 .....•..• 2t1. 39

W.:U'I:<t; t:'/I"II'lIE:<T I~ \\ Imll·hilr:':l·rs .•....• I .•

Wlr.· .....••.•..••• 19. 5-1-;.ti Wire (;au&:t= ' ............. 50 Wire totlriJlIIt'r .....•... ;'0, 51 Wrenches ............. 50, 5~

96 .OR VICTORY BUY U .. S .. WAR SAVINGS BONDS AND STAMPS

_.

0811£8 ALLIED 8lANK CORPORATION

ALL PHONES: 1M Y m.rIret 6800

133 W. JAeKSOIf BLVD.: eHleAGO 7. ILL.

~ _______ IM __ ~ .................. ~~-----------HOW SHALL ENTII AMOUNT

N-. ------------________________ r-____ ~~----__I

T: .. ,.I I ... WI SHIP IEMlno HEIE

, ..... ,.,. CI , .... 10 hII S. a_ IN .. Dr.-

III CI ,.rt ,.id S. Stoto _ .... '11.'- r.w __ .... _ ....

ISto ..

TERMS ::...-:-.;: =-w:.""r ~ '!;! ~ or::: __ .....,, __ .. _ ........... _ All

,.. ....... I ... " CIiIcoto • -,.

........ v E -v --

- ---

-IMPOITAICT_ PUASI PILL IN "'- ... ...., ........ ................... ..... _-

41rodIr _"""10 _ . I'wfll __ _ AllIN

o mit (W. WDI SiIIp ....... C.O.D.)

00 _

.. 1II1S --DllCII"IOM 0' Amcu

=a:~I-:D~~ !!..----:.:-:.~ ~ ~:'.t= ........ 1' ........ __

_ ....

-AMOUIIl .01 OOODS

AMOUIIl POI ,Alea POll (W ........ ,." ..... , ... u .....

cw:~ t;.. ..... --

-

110 -- .... _pI

c-..M •• ___ l!.:::. ... ~ 10 w ..... +::. AMOUNT POI PllPAID _"_1_. .,. .... MMe .1tMt • .,. _OIEXPIW

'::~~.r:r. ':::t:::-.~.::. "'Ria ~~ ~ AMOUNT DUE ALLIED TUIt~"nOll call Of C.O.D. pI,."... "... I, tM u.ttM St ... 1M .n ----ALlOWAMCI ~J:...,,=::...':"'N~:!:1·l:":..'-:.r !';t TOTAL AMOUNT INW" , ...... . ~AI""'''''''' IHfJ ..... ..,. ....... I'....., .............. Of"", u.s, .......... 1 .... tI " .................

IMPORTANT: Your Signature must appear below Limitation Order 1.-265, iuued by the War

Production Bo~d, proYidft that aU dec:-

tronie parta may be aold for repair par

poeeI ollly. UnIeM prioritiee are extended,

thertfore, it ia _tiaI that you aign ODe

of the cutilieatioDa at the rjpL

(I) S.,.plk,'. Cartillt .. , (II ,.. .. ".N ,. I., ,NIl,). I A,reby c.,,1/1'II.I I am eAlitl.4 to purc"tII~ tlt~ it~ms specifoetl on tA~ tlCCO"'PII1lrin, purcluJJt ortltr IUtdtr 'lit pror;isio", 0/ Limi""u," O,d., L·II' • .. i,A 1M ,,, ... • f .. AKA I am fcrtili",. _ .... -(2) c....."'., .• Certl/faH (II ,....".. .. ,. lor _" ~). I Amby ce,tif1 Ih .. ,A. it .... .".a~d .~ ,Ilia .,", /IT' UMIUi<JI f., ,.,_ .. 11 ••• ded "pair .f .lcc" .... ..,uipmcrol .. lIicA I ... ~ ., .~''''. tIM ,11.1 IIIIill, ..ww. uty dey .. dUpo" .f deftcti, .. .u porI.! ./ .unu. IdU tIM oil. ,Ar • .,h ' .... ' ~ 0' "'lip cAaow ., 4.","1 IU<A porI.! .. h_ .. p,,,,,tiaJl ~. _ ... -

~uw"to OMeA FROM ALliED

USI OUR ORDER lLANK Vii our convenitnt order blank .the f~~rw lidt 01 thia ah~ Ty~ or prilll your name &Del addrtlll ia full ud lpecif, whtt~r ahipment ill to be made by Pared Poet, Eaprea, or Frel.hL LlJt the il.eml you want-one to • ~ lure to rift the correct cal&lor n umbtr for each Item. Enter eornct priCft.. mab attnsions cartfuUy. and toW rOut order. Make your ftlftitunce Wit enough to cover both the cost of the merchandi!l!: IUld lhippinl; char~ (unl~ put C. O. D, ,hipment u requested).

HOW TO SEND MONEY Money mI)' be wnt mOlt safd, by t)O!l ~ or eIpr~ maney order. banI.: draft. or check. Avoid sendiDi colt! or curreDCy. but if ~. be: sure to ~r your lelU:r. For lPKial ba.ste. klter,ph your ordn IUld mOMy throuch an)' Wt'IItetD Union or Postal Tel~pb offitt. Make allOW'anC'e (or poet.an oa ~I poBC. orden ; prompt muDd 01 aDY excess follows Ihipment... Ez~ and (reichl orden an: IefIl tnnIport..atioo collect urue. )'OW'

,u.lion h.u DO alen\.

IT'S EASY TO ORDER This conwn ient onhr blank makn it e'U)' to order. Simply rtad the

~:,~~::;'!:'~~O:=~ this 1Mtt. and aWl ilLO u with your remilUDCe.

OUR TlRMS 0... tWfttI of ...... UIh with ...... Cat.aloc prien an Det. F. O. 8. Cbica&:o (~ _here nOled). All prien .. MlCll'U.tI, "'Jed to chanp wttheut netk4. {We rnerve tn~ nchl 10 add uy federal or Sta~ TaR' which may Ix ~vitd after Ca1~01 b prinl~ . .::.) ___ _

POLICY ON C.O.D. ORDERS (1) Includ~rulJ remitt.anc:e with mail Ofdfo" of It IS thaD IJ.OO. (2) lacludt a minfmWD 25% d~l OD C. O. D. nwJ ordtn of IJ.OO or mon. \\'t rt.f\~ 1M- filh1 to d~duct t.r&ns"POrtation both waY' if dtlh~ry U Dot acc:epttd throuah DO f.ult ofo ::;\UI.:.:.. ___ _

FULL DISCOUNTS In addition to aU I.rIde dilCGunt!. a FULL 1% CASH DISCOUNT HAl ALREADY au" H. DUCTED from eftfY 'Price iD oar CaUloc. Oar ntt ca.taloI pric:tt ~ tbe priCM you ~,. y., ,...... tua~..,...H,... ..... .. ,.,t C.O.D. ahl,.,....t. You .ue C. O. D. coU«tioa COtta. bownero b, rtmiu.iQ: i.e full.

FOR SPECIAL RUSH HANDLING PracticaUy every order is shipped the same day it is received. Where special rush handling is ~uirtd, it is advisable to send your order by Western Union or Postal T elegrap'h. Urgent ,hipmonta can be made on request by Air ~Iail (60 pee ounce) or Air Express (see your express office for Air Expresa rates). Wire deposit Wltb telegram. order for Air Mail or Air Expr ... shipments.

FOR ADDITIONAL INFORMATION SEE "HOW TO ORDER" PAGE IN OUR CATALOG

FREIGHT SHIPMENTS Fl"tilht ahipmtnt is espcriaIl,. ~. mtnded on ordtrt wbtrt rapid dtlivefY b DOl t~nLiaJ and mtrchandlle telecttd wtliM approximately 100 pound. or O\'U. Tht minimum frtilbl charlt i5 baled on shippinl 9t'~igbt of 100 tbI. WbeD .pecihinl (rtighl .hipmtnt., do DOl tend Ihipplnl ch&rtH with )'OUl' or~r if tMrt i.s a fni&hl &!tnt iD your local ity. Howe~r. U JGU art on a prtpaid station, pkue Knd fundi to pay fttilht ch&rteI ba ad~. ADy Iw"ph1.l ba your ftmilt.a.::e will be prompt..ly rtfUDded. Chari" an the ~ wbtlher prepaid or c:cllec:t.. U there it DO. frttahl ,t.atioD ill )'OW' ka.tJon, pit. be IWt to lPtCify )'Oar ntanlt shiPJllq point. For lpeciAc iDformatioD aIIocrt (reiJ:bl cha.r'Jn for itelDl iD our Catalog 00 which wei&hti art Ihown, COAII.&Il YOUl frtiPl a&'leDl or writ.e ~

EXPRESS SHIPMENTS Ba1kp rMTcllan~tt lU(h al ~ntratnn. notq:t ~tten~~ aDd ilny ittm. which we ban: iDdIClted ba our Ca lalol a. "DOt mailablt" mwt be shipped by t:ZJftII or f~ght. · To lD8W't salt an1\'aJ, we prtfer to &hip all radiO!, 60und ..systtm!, lest \&Diu. tnrumit· titl& lUbet. and other t"tci.!iOD eQaip. mtnl hy ttphSL If tbcre i. DO ttIJft8I qut at )'0111 location.. plta.!II!! be IUJ't to lPICify your oearm u;n. ot&ce. All ttprl:&5 ,hipmeata are inJUred for )"OW' protection. Consull the tabM at richt for approJ::imat.e ~ dw~ (i.ftSW'aDCe cha.r'ln art iDcluded for values UDder $.SO). For more 1PtCi6c iaformation aboUl upre. ~ lee roar 1oe.J Railway Exf)nII!II &IUIt or writ.e us. Uprell! cbarJ:es netd DOL be iDdadtd in your rtmitlaDOP. Ship. mleDl will be made mUert at DO t:dra clw1;e,. AamL c:oUed.I UKL ch&rJ&

PARCEL POST SHIPMENTS See 1M tablt tad map imm~iauty below for C. 0. D. for 1M bat~. For your ~K'lioQ p&rteI poet ra1eL If ill doubt. ask rour DOli- all our II&rCtl post Bhj~nl3 are ic.sured. ma...-u:r for ,.our &ClOt number and char~ 011 Allow for inaurance at Lbt followina: rates: item! for wtJch w.t:I&btI are Ihown. or write to

~~C.~D.~~y'::~':~ ~~Ot~Ss~~:oci : · : ~~ pnxaptl, rtlu~ )'OW' n.mit1aDcr does $.25.00 to S50.,OO . . lOc DOt COYtt ~ ah.ipment will be IJJ.adc s.so.OO to 5100.00 . . . SOc

IE SUu TO INCLUDE ENOUGH POSTAGE-IXCESS WILL IE UFUNDED

, I • • II

u U lJ .. II

II 11 II 11

" F.r lach Atltlltlenal ' ..... nclAdd

." . 11 ., . :1 ~ :1 1 • 4

:11 :11 .'7 :1 ~ ',<

PARCEL POST ZONE MAP.

:11 .1

:1

... •• 7 ... :~X ,<

SO"1 .1

:1 .1

:!i .. : g

.< 3 .<

SO·12 :11 t :1: :n ~tl .A.

.<

SO.I~

:h :It

:11 ,:83 1.1 3

I.', I.' 1.3 1.4 1.49

7<

HOW TO ESTIMATE EXPRESS CHAUIiS

$0·15 $0.16

:H :U :~~ ! ::,

In 1·28 1·35 1.44

li~ W 1·91

.<

U9 2.11 2 .31

,,<

tNOn: Add 1Dc ... u,.ecy ~Mrt. f., nell .. hlp ... t to rat •• b.l.w)

.... ht FOil DISTAHCU 0 .. Not More

'00 20. M!~5 Mtt'n 7 .. 1000 M~S .-T_ 1]¥1'LES MILU MILES MIUS MILES

~ 2.!S- 25< .oe JSe >Se U. SOc .Se

10 Lbo. _ 30e 3Ic 40c 50c 5Oc: 'lie I4c S 1. 1 0

15~. 34e 41e .7e - SIc 7Oc: aile " . 20 1.5~

2t Lbo. 42, SIC 59c 7 lie 10c 11.14 1.57 2.09

• LIK. SOc .'e 71 • 84. 1.09 1."0 1.1' 2.59

15 Lbs. 8.e 82e .. ~ 1.2' 1.4. 1.91 2.87 3.58

~S Lbs. .2e 11.02 _ " It 1.12 ,,81 2." 3 . &0 4.57

55 LbL "Be "23 " .. " .. 2.as 2." 4.13 5.57

7ILbs. 11.30 1.83 1.12 2.12 3.07 ' 3." •••• 7.55

!O L-. _ '.154 1.94 2.28 '.13 1.'7 ".7' .... - 9.04

F."ueh 1" Itoundl LeO 2 . 04 2.42 3.31 S ... 1.17 7.32 9.93

COMPLETE CENTRALIZED PROCUREMENT SERVICE You can simplify your procurement problems and speed delivery of suppl ies-faster,easier at Allied. Instead of dealing with a number of supply sources, you get everything you need in Radio and Electronics at one time from this one dependable, central source. We cut red tape-you save time, effort and money.

Allied serves today as a great Arsenal of Supply for wartime.needs. From aur huge, cci~plete stoclcs, flow all types af radio and electronic supplies for war training and combat, for production lines and maintenance purposes, for research and coritrol laboratories. Emergency needs are met with speed and efflciency. Our specialized, experienced sta" helps you with your priority problems, insures fastest handling of yuur orders, expedites deliveries.

Keep this helpful Allied Buying Guide handy for quick reference. If you do not lind listed here the items you require, let us know. Write, wire or 'phonf!!.

ALLIED RADIO CORPORATION 833 WEST JACKSON BOULEVARD CHICAGO

A"LL PHONES: HAYmarket 6800

GUARANTEE

w~ guarantee thot our merchondise conforms to the standards of 'he Radio

Manufacturer .. ' AssociotiOf'l and will

perform ir'\ the manner intended for such apparatus. Every item bought

from us must satisfy in every way

or it may be returned of OnCe for ex.

ALLIED-Arsenal of Supply for Everything

in Radio and Electronics

THE ARMED FORCES Service for our Armed forc •• geh the "green light" 01 ALUlO. A .pecial department of technical and procurement .ape'" devotes rts entire time to servinG aU branches of the ArMed Force.. and it pre· pored '0 supply everything in Rodio and Eleeltonia. We in-nt. bid, and advance quotations, and are prepared to gave the mOs' rapid shipmen' on open·morke' purchasel. Our .apedi'on are constantty on the job to speed delivery.

RADIO TRAINING Since the earUe" days. we have served and encouraged Radio Training. Today. we or. speciclkts in this fleld. Our Educational Division i, cur· rently cooperating with the leading trolnin9 prograM' sponsored by both the Armed Force. and the notion ' , schools. W. Invite inquiries for helpful boo In and project diagrams, as well as for priority information on eslefltiol supplies, for general or speCific curricular use .

WAR INDUSTRY We are able to render eS4 pee-ially useful service to wor industT;es_ With our large, complete stocks, we con q'lick. Iy supply rodio and elec4 tronic material for loboratory, maintenance, operating and production requir aments. You get everything you need at one time from one central \out'Ce of supply. Our alert E.· pediting Division speeds fac4 tory deliveries. Use .... (UfO's fast, intelligent \ervice and sove time. money ond eftor1.

THE HOME FRONT War requi,ements have fI,st call on rodio materiall. HOwever, we ore dOing our ute most, consistent with wartime regulationl, to continue to supply replacement partl. Send us yow orders-if the equipment is ot all avoHabl., AlliED COn lerve you belt. Wt..n ' odl ..... _ buM, .. _ .. tlte now ICMGHT .ft ....... will 1M flnet' thon ever, produck of CHIvGnt'ed d.",lgn ond ,.-.chien

production ••• Yo u w ill w." o po,"'wor KHK6HT R.~.iv ....

ballicrafters COMMUNICATIONS RECEIVERS for the Armed Forces, Radio Schools, Civilian Defense, etc.

THE "SKY CHAMPION" S-20R Meet tIM! Sky Championl--a. rPal winnl'r for Quality prrformana-a blll~-ribbon champion in its priCf' cla~. Among tu mitn).' ft'alU~ ar~: Stl'Rratt" E1Ktricai Banc:itpmld. RF and AF Gafa Control ... Individual Coil. fOT neh hand. Inrrtia Tuninit Mecllanism. fkoat FftqlH'nc)' Oscillator, AVe. Tone Control. B<-at Oscillator. &'nd-~i\'e S .... ·l lcb. Pitch Control. Automatic: Noise.' Limit('r. Phont" Jack. and otllrn. H(,ft". too. i!l continuoull lUninlt in four overlapping bands from S40 KC to ..... 000 KC for df'PCndablr fC'Ce'Ption on Broadcast. Amatf"ur. and ShOTt-\Va,,'(" hands. Nine' tubrs Includin~ f'f'Ctifi("r: .J---.6SK7. 6K8. 6507. 6F6G. 6J5GT. 6H6. and AO--in ,l dreuil which Ilrovidl"'S maximum Ito"lin. M"1cd.ivity. and :w:onsitivity. Sprak('f is huilt-in--thc-rr',

i~~~ ~!,y~~':U~y~~~~:ls~ ~~r~ffi'!:i~~:ilr:!!:P~ ~r~: Has pTovi~ion. for O1lt'rating from "B·' batl~il"S or vibrator·t)."fle 1)()W("f ' ..... ck (EI«tronic:: .102 convertn. 80-120) and 6 V. storalC batt('FY for c~r~ncy Rn iet' at locationa far r('mo\·~ from thc Ilo.volt AC sUl!flY Unci. For t10V.5()..6()crclt'~AC. Size; 11~·loll):. ~~ ~I~~' :;~; t~~: ~:::~~t.:nJ:i~h irA)' enamel. S 5 450 97~10. NET ....•............•......•..•.....

:\ lS.tube mtra.Hi.h-FftQu~ncy I'1!'Cltiv~r dr5iKR('d for I'"e'ttJ)tioa. 01 ~ithn . AmpUtu~ Of FI'f'QUI!'ncy-Modulat~ !lia:nals. Ran,. : 28 MC to 145 MC. continuous Conrallt' in l bands. T"brft ~ 956 JlF

t;l~i~;d W. l:i8"tI.::l~~5~~W:.!,'::~~?~J~tl~~5~;~~: 6H6 AmpUtude-modulation detector and ANL. 6CaG PILMe invf'rtf'r. 2-6V6 Push·puU Audio amplifi<>r. 6]5 ~t Ooollator. VR·I50 Voltaa:r R.r&U1ator. and 5ZJ Rrct.ifier. Controls : TuninK. Hand

~~~~W~~ r~. ::0 ~~. ~~~~N"oi~r:;;~rt~·r. !fon~~~~~~t Standby switcb. F.at" .... : FlYwheei Kt'Clf-dri~n tunln. mechanism: Sh~k-mounted RF as... .... :mbly; P1ak-tUnM Df'Cillator; AIr-tuned iron<~ IF •• and "S" mt'tn for aCCuratf'. ra!!;~· tUruae of FM manals. SpNkt'r output. 5.\JOO ohms. For 110 volt. 60 cycks AC. 19'1011 •. 9' hi.h. 14' d=. With tuhrs. $19500 ;7.8&'i"·N~·. ~:'.:~ .I.~ . ........... ..... .

for additional Communications Typ. r.c.lyen, pRaM ref. to pog.' 67 and 61.

THE S-29 "SKY TRAVELER" Th~ 8-29 "Sky Tra~I(,T" Pfovidrt tru~ communiO\lion ~rformanc:t' In a compact. rasily carrird portabl~ rKriv~r. ~ratn on 110 volts. :\C or OC. or from .. If-<ontai~ hattm('S1 Tunc. 5SO KC to JO.S MC In four bands. with full t'lectrical handapnoad. U ... 1.4 volt tub(os: IT. RF staIr. IR!i mixt'r. 2-IPSGT IF·II.IHsGT Dctector·AVc...

l~-:o~~I~f~~I¥ °L!~i~!r~\:~li;;yJ;~aJct~rt. ~~: Wa~d~~t:ct~.1~g\\!~~~i~·c~A~~:roa#6.'}S'oi:u~:.t~r~~J Standby s .... itch. Ha~ buJtt·tn SfJf'akt'r with jack fOT ht'ad·

Chon~ U~. Antt'nna input for doubl~t or sinKl1' wire, also Ia! 5I'U-<ontained collapsible Iln~nna for vortabl~ UR.

~t~~dfF ~~:lS.U~~m~~~i,~Il:;1 c::!~~~:~·~~~ cabirK't is finistt('d in black craclr.l~, siu. ,. II BY.· x 1l!A •. WeiKht. Indudinl hattt"l'it'''I. only 18 lb!!. Comp\t'u' Wltn lUOn.. b.lttenc5, ... nd 'rUllt.tlC- $6950 tions. Shpa. wt ... 23 lb!.. 97 · 514. NET ........................ .

ECHO PHONE EC-l RECEIVER Ift're it is! One of tile fine-st JlNformN'S ever de~loped in a 100v-pricrd communication, t)"J1IC' rrct"ivf'r. Incorporate-s important f('8tult's .... ·hlch auurr tht' kind of high.l('v('1 Pf'rforman~ you can f":tl~t from an f'll1)("nsi~ no.'j\'('r. Built like a fiKhtf'r-plan~nsitiv~. a«uralt'. Yf't rUK£cd ('nouJth to .... ·ithstand rough handlin.:. This <llft'rully ~ntti~red 6--tubt' AC-DC c:ommnnicationlS rt"CX'i,'er covt'rs tlal' ('ntire tuninl ranKt from .545 KC to ,\0 .. 0; MC (~SO to 9.85 mctN's) in thrtt bands. Main dial e,librated in ~lC ..... ith M"IJarcltt' 10000s.:.inJ.: scal~ for U~· ..... it h el('("trical bandlll"rad control. EIf'Ctrical handsprc-ad on all IXl.nd~. St urdy. Kr.n.' ..... rinkle finished. metal cabinN with built·in PM s'Peak~r under tOIJ lJanel. Control~ art': ~Iain turuml:. Bandspr("ad tUninJ.:. \'olume. Standh).' liv.itdl. S)K"akerphon('~ s ..... itch. BFO-AVC·On·Off " .... ·itch. Complete isolation for phon~' throuJ.:h pho[l(" drcult transimmcr.

U!~s df~llk~~t~~ 2~Kn;:~~t~~;~kr...:f2f5~0~~ J5L6GT tubes. and 1-2!iZ;\ rC'C'titK·r. Siu-: 7th- rugh. 107,4- wid~. iSla- dC"('ll. \Vithtubea. For 11.S-125voltsAC or DC. $2450 ~r-s5k I~~ ••. . ...... . .•......•.•

fRSATILr v fiNGER-TIP SPUT-SECOOMN:'UNICATlON!

INJERC

USED IT

• u. S. A,.,.,e4 forc., • Go •• r .. "' .... AIiI.MI., • War Industries • Schools a ... ' Coli • ..,... • HOlpltal1 and Prl,o," • Of"ce. and Ito,... • Worehoul •• Gild Gorao., • Hotels OfId I.ste ..... " ...

DELUXE SUPER -SELECTIVE SYSTEM The answer to your problem of instant inter.departmental communication. Easy to install . Easy to operate. Saves valuable time. Removes traffic from your switchboard. Permits direct person-to· person communication: simply turn selector switch to station you are calling, press the hutton to talk, release button to listen . Will handle up to fi\'e separate t wo·way conversations (ten stations) without crosstalk or interference of any kind. The lJ. S. Armed Forces. Government Agencies, Trainin\( Schools, and Industries throughout the t\ation <Ire using Knight SuperSelective Systems to speed their part in our All·Out War Effort. As much as 2,000 feet of cable nlay be connected between stations without impairing operating efficiency. ;\11 stations are absolutely silent when not in usc. Continuously \'ariahle controls permit adjustment of the 2~ watts output of each indi\'idual unit from a whisper to full \'olume as required. Units are attractively housed in handsome walnut finished cabinets. 12" x 6" x 5~·. lias on ·olT inrlicator . For 110·115 volt AC or DC operation. 95-835. Deluxe Super-Selective Unit. With tuhes, junction box, 6 foot cable, and complete installat ion and oper· $ ~~g~~s~r~~~~~~H . ~~P~ : \~: . I. ~ .lbs: . . .... . . ..... 3495 95-836. Same as above except includes privacy earphone. For executives, secretaries, receptionists, etc . \\ hen earphone is used, "Talk·Listen" switch does not need to be operated since units then work the same as a telephone. $ ~'ri~A~~'s~~i:~·N .. ..... ...... .. ......... .. ...... 4350 49-603. Connecting cable (II cond.) Nn '11 FOOT . ....... 13c

HOW TO DETERMINE CABLE REQUIREMENTS. M"",uro ""bIe distance from fint rna~tt'r. to M'("ond. from M"C'ond to third. from third to (ourlh, etc. Includr footaJ.tl' rrquired for wirinR above floor level if ncce-!O."lry . AI/ ordus/rw cable "It4 sl ;,.dude cll"ePftJ y rrqui,ed p,iority u:lensi01'. Our enJ.tin~rinJl: 5latl will I~ Iotlad to an$wer (,ur_tions on installation.

HE PAGE n lor Uoti... 01 MaJlN-Srlt'ctlft and Combinat!on S~s Jo Dt-Jux~ and Economy style,.,. for all purpoN!S.

WE CAN SUPPLY KnJ.b, Sn· tem!l COftrinl 20, 30. 40. and 50 or more lIlaUon5. \,,·rite for pri~A. QuotatJoU!I PTOmptly suppli~ .

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Allied Radio Catalog 1943.pdf

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