2

2

3 H A 8 1956 3

3 6 8 1 10 1.............................. 11 2.................. 15 3.......... 18 4.................. 20 5.............. 23 2 25 RME Model DB 22A.............................. 26 Gon Set 10 11 Meter Converter........................ 29 Gon Set 3 30 Megacycle Converter...................... 32 RME Model HF 10 20............................. 35 RME Model VHF-152 A............................ 38 Hallicrafters Model S 38............................ 41 Hallicrafters Model S 38B........................... 44 National Model SW 54............................. 46 National Model NC 33............................. 49 Hallicrafters Model S 40A........................... 52 Hallicrafters Model S 40B........................... 54 Hallicrafters Model S 77............................ 57 4

5 Hallicrafters Model S 53(A, Au)........................ 60 RME Model 45................................. 63 Hallicrafters Model SX 43........................... 66 Hammarlund Model HQ 129 X........................ 70 Hallicrafters Model S 76,U........................... 74 National Models NC 2 40 D DT...................... 77 National Model NC 173R NC 173T.................... 82 Hallicrafters Mode1 SX 71........................... 85 National Models HRO 7R 7T........................ 88 National Models NC 183R 183T....................... 93 Hallicrafters Model SX 42........................... 97 Hallicrafters Model S 47............................ 101 Collins Mode1 75A 1.............................. 105 National Models HRO 50 R1 T1...................... 109 Hammarlund Model SP 400 X........................ 113 Collins Model 75A-3.............................. 117 Ranger Model 118 Battery Operated..................... 121 Hallicrafters Model S 72............................ 124 Hallicrafters Model SX 62........................... 127 U.S. Signal Corps BC 348E M P(C K R H)............. 130............................. 133.......................... 137.................. 142

6 A (Antenna) E (Earth Ground) RFA (Radio Frequency Amplifier RFA 1 1 RFA 2,3 2 3 MIX (Mixer MIX 1,2 CONV (Frequency Converter) Conv 1,2 1 2 OSC (Loal Oscirator) IFT (Intermediate Frequency Transformer) XF (Crystal Filter) IFA (Intermediate Frequency Amplifier) IFA 1,2,3 RFA 1,2,3 1st IFA 2nd IFA 1 2 DET (Detector Tube, Crystal Diode for detecting use) AM (Amplitude Modulation) FM (Frequency Modulation) AVC (Automatic Volume Control) AVC AMP (AVC Amplifier) AVC AFC (Automatic Frequency Control) AFA (Audio Frequency Amplifier) INV (Audio Frequency Inverter)

7 PA (Power Amplifier, Output tube) RECT (Rectifier) V. REG (Voltage Regurator) C. REG (Current Regurator) BFO (Beat Frequency Oscillator) A 1 BFO BUFF (BFO Buffer) BFO CWO (Oscillator Circuit for CW) A 1 IFA A 1 BFO SSB (Single Sideband) SSSC (Single Sideband Supressed Carrier) NBFM (Narrow Band Frequency Modulation)

8 Airadio Airadio, Inc., Stamford, Conn. Collins Collins Radio Co., Cedar Rapids, Iowa. Gon-Set Waterproof Elect. Co., 70 E. Verdugo Ave., Burbank, Calif. Hallicrafters The Hallicrafters Co., Chicago 16, Illinois. Hammarlund Hammarlund Mfg. Co., 460 W. 34th Street, New York, N. Y. Harvey-Wells Harvey-Wells Electronics, Inc., Southbridge, Mass. Heath The Heath Co., Benton Harbor, Michigan. Jeffferson-Travis Jefferson-Travis Radio Mfg. Corp., 245 E, 23rd St., New York, N. Y. Learadio Lear. Inc., 110 India Ave., N. W., Grand Rapids, Mich. Monitoradio Radio Apparatus Corp., 55 N.New Jersey, Indianapolis, Ind. Motorola Galvin Mfg. Corp., 4545 Augusta Blvd., Chicago. Ill. National National Co.. Inc., 61 Sherman St.. Malden, Mass. Police Alarm Radio Apparatus Corp., 310 Fountain Square Theatre Bld., Indianapolis, Indiana. Ranger Electronic Specialty Co., 3456 Glendale Blvd,. Los Angeles 26, Calif. RME Radio Mfg. Engineers. Inc., 300-306 1st Ave., Peoria Illinois.

9

10 1

11 1. (db=deci-be11 SN (i) 10 (Bell Unit) 10 A B 10 log 10 A B

12 A > B A < B A = B 0 1W 100W 100 10 log 10 100 1 = 20(db) 20 100W 10W 10 100 = 0.1 0.1 1/10 X 0.1X 10 log 10 10 100 = 10db 10db 10db W = I 2 R = E2 R R IA R EA IB EB 1 (W = I = R = E = ) 1 A, B R I A, I B, E A, E B A = I 2 A R = E2 A R B = IB 2 R = E2 B R A 10 log 10 B = 10 log IA 2 R 10 IB 2 ( R ) 2 IA I A = 10 log 10 = 20 log I 10 B I B

( A log 10 B = 10 log EA 2 10 R = 10 log 10 ( EA E B / E 2 B R ) ) 2 = 20 log 10 E A E B 13 2 20V 400V 400 20 = 20X 20 log 10 400 20 = 26db X db 1X 0db 2X 6db 0.7X 3db 3X 10db 0.5X 6db 10X 20db 0.3X 10db 20X db 20X = 10X 2X = 20db + 6db = 26db 50X = 100X 0.5X = 40db 6db = 34db V.T.V.M. 0.1 0.2 1.0 1 0.7 3db 0.5 6db 0.3 10db 0.8 2db 2 (ii)

14 75Ω 1µV 0db 600Ω 0.775V 0db 2 120db 0db = 1µV 120db 1µV 10 6 = 1V 1V 20db(10µV) 1V 1V 120db 20db 100db 100db 1µV = 0db 1µV = 0db 10mV = 80db 10µV = 20db 100mV = 100db 100µV = 40db 1V = 120db 1mV = 60db 10V = 140db 10 1µV 0db 20db 10 10db

15 2. SN 600kc=RF 455kc=IF 400c/s=AF 12db 6db RF A 31db 1.5db 38db 20db 48db 3db 1-MIX 1-IF A 2-IF A1 38db DET-AVC AF A 17db PA 6SG7 6SA7 6SK7 6SK7 6SQ7 6F6 6J5 6H6 80 BFO NL RECT 3 S 40A Hallicrafters S 40A 3 AE 6SG7 12db 4 600kc 6SG7 6SA7 6db 2 600kc 6SA7 31db 40 600kc 455Kc 6SA7 6SK7 1 IFT 1 1.5db 0.85 455kc 6SK7 1 1 38db 50 455kc

16 6SK7 1 6SK7 2 IFT 2 20db 0.1 455kc 6SK7 2 2 48db 150 455kc IFT 2 30db 0.7 455kc 6SQ7 38db 80 400 c / s 6SQ7 6V6 17db 7 400 c / s 1 S 40A 12 + 6 + 31 1.5 + 38 20 + 48 3 + 38 + 17 = 165.5(db) AVC 2 S 40A 50mW 40% AM 1 4,700Ω 400 c / s 50 4700/1000 = 235(V) 40% 235 100/40 600(V) 1µV = 0db 1V = 120db 600V = 1V 100 3 2 = 120db + 40db + 10db + 6db = 176db 165.5db 176db 65.5db = 10.5db 3.5µV 40% 3.5µV 50mW

17 3 1V IFT 2 12 + 6 + 31 1.5 + 38 20 + 40 3 100(db) 1V = 120db 120db 100db = 20db 20db = 10µV 1V AVC DAVC AVC

18 3. 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 64db 600kc 455kc 400c/s (db) 4 S 40A 4 Hallicrafters S 40A 1

19 30db 30db IFT 1 P 2 IFT 2 G IFT 1 P 40db(100µV) IFT 3 G 104 db 0.1V S/N SN 2

20 4. 10 20db((600kc) 10 20db((600kc) 20 30db((600 455kc) 1 40db(455kc) 30db(400 c / s ) 25db(400 c / s ) 150 170db IFT 200 150 (A) (B) (C) (D) 100 50 0 S-38 S-47 HQ-129-X RME-45 (A)(B) (C)(D) 5 5Hammarlund HQ 129X RME 45 Hallicrafters SX 38 Hallicrafters Model S 47

21 HQ 129X RME 45 IFT IFT 1 2 Q IFT Hallicrafters Model S 42 AM 1 40db 100 1 2 3 1 820pF(455Kc) IFT 100pF 1 2 2 IFT G m IFT

22

23 5. Collins 75A 1,2,3 51 J 1 Hallicrafters SX 88 Hallicrafters SX 71 National NC 183D HRO-60 Hammarlund SP 600JX 80db 80 db SN 1 (1st CONV) 2 (2nd CONV) 2 (i) 1 (ii) 2 (i) 2 Hallicrafters SX 71 (46-56Mc) National NC 183D A B C (47 55Mc 12 31Mc 4.4 12Mc) Hammarlund SP-600 JX 7.4 14.8Mc 14.8 29.7Mc 29.7 54Mc 2075kc(SX 71) 1720kc(NC 183D) 3955kc(SP 600 JX) (ii) Hallicrafters SX 88 Q5er 50 85kc 2 Collins Hallicrafters SX 62

24 FM 10.7Mc U.S. Signa1 Corps BC 348 915kc Hallicrafters S 53 2075kc (i)(ii) SX 62 FM BC 348 4 3 S 53 1 2

25 2

26 RME Model DB 22A ON-OFF RME Model DB 22A Radio Manufacturing Enineers Inc,, 300 306 1st Ave., Peoria Illinois. AC 3 4 110 120V AC 0.1A (117V AC) # 1 540 1640kc # 2 1.65 5.0Mc # 3 5.0 15.0Mc #4 15.0 44.0Mc 1

6BA6 2 6X4 2 2 1 6db RFA1 6BA6 6X4 RFA2 6BA6 27 RF RECT GB=Gain Band width Product Q 1 SN 2 6BA6 B+ RME

28 4 ON OFF 2 #1 600 1200kc # 2 1.0 3.5Mc # 3 11Mc # 4 32Mc

29 Gon Set 10 11 Meter Converter CONV ON-OFF Gon Set, 10 11 Meter Converter Waterproof Elect., Co., 70 E. Verdugo Ave., Burbank, Calif. 10 11m 6.3V 0.5A AC DC 180V 15mA DC 27.5 30.5Mc 1,500kc 10m 10 11m B 15mA 1,500kc Q

30 6C4 6C4 6AK5 RFA 6AK5 OB2 V.REG. MIX 6AK5 6C4 OSC 1,500kc 11m 4 2 ON OFF 1) 6C4 OB2 B 180V 1)

31 4700Ω B IFT 1500kc 28.5Mc 1953 3m North Hollywood

32 Gon Set 3 30 Megacycle Converter Gon Set 3 30 Megacycle Converter Waterproof Electric Co., 70 E, Verdugo Ave., Burbank, Calf. 3 30 Mc 4 6.3V 1A AC DC 130V 12.5mA 3 30Mc 3 1,500kc Gon Set 10 11 1,500kc 10 11 6 9.5 11.7 15 17.8 21.5Mc 6BH6 6C4 3 6AV6 3 6BH6

3 3 1 (3 8Mc) RF A 6BA6 MIX 6AV6 6C4 IF A 6BH6 33 1500kc OSC 3 30Mc 2 (8 18Mc, 18 30Mc) 2 3 6AV6 7Mc 3.5 7 14 21 28Mc 3 6AV6

34 1500kc OK

35 RME Model HF 10 20 ON-OFF RME Model HF 10 20 Radio Mfg. Engineers, Inc., 300 306 1st Ave., Peoria, Ill. AC 4 3 110 120V AC 0.38A(117V) 14.0 14.4Mc 21.0 21.5Mc 27.0 29.7Mc 7Mc 2 RME Model HF 10 20 RME 30Mc 20Mc

36 455kc 56Mc NC 183R T RFA MIX 6BA6 6J6/2 5Y3 VR 150 6J6/2 RECT V.REG OSC 7Mc RME HF 10 20 300Ω 6BA6 20KΩ B+ 20KΩ

37 3 6J6 6J6 G P 1 7Mc 40m VHF 152A 14 14.4Mc 21 21.5Mc 27 27.7Mc

38 RME Model VHF-152 A SW SW RME Model VHF 152 A Radio Mfg. Engineers, Inc., 300-306 1st Ave., Peoria, Ill. AC 4 3 7Mc 110 120V AC 0.38A (117V) 27.0 29.8Mc 49.5 54.2Mc 143.8 148.2Mc 7Mc HF 10 20 HF 10 20 6BA6 6CB6 120 6AK5 140Mc 5 2m 15pF 6J6

6 10m 2 HF 10 20 2m VR-150 2m 50Mc RFA MIX 6AK5 6J6/2 5Y3 VR 150 6J6/2 RECT V.REG OSC 39 7Mc RME VHF-152A HF 10 12 HF 10-20

40 10 15m 20m VHF 152A 6 10m 2m 2 117V 0.38A 2 620V 50mA 5.2 V 2A 6.6V 1A 5Y3GT VR150 AC 7Mc VHF 27 29 7Mc

41 Hallicrafters Model S 38 BFO SW Hallicrafters, Model S 38 Hallicrafters Co., 5th and kostner Ave., Chicago Ill. AC DC 6 4 105 125V AC DC 0.245 A (117V AC) #1 540 1650kc #2 1650kc 5Mc #3 3.5 14.5Mc #4 13.5 32Mc 455kc 327 178 184mm 5kg BFO

42 IFT 149db NC 2 40T S 10db 20db 8db 40db 18db 31db 22db 600kc 455kc 400c CONV IFA DET,AFA PA 12SA7 12SK7 12SQ7 35L5 BFO NL 12SQ7 35Z5 RECT S 38 47 3 (#1 540 1650kc #2 1650kc 5Mc #3 3.5 15Mc) 2 4 12SA7 12SQ7 BFO 3 BFO BFO ON OFF CW FONE 2 BFO AVC AVC 12SQ7 2 BFO Hallicrafter

43 12SK7 12SK7 BFO 455kc 600kc 1500kc 1800kc 5Mc 30Mc Hallicrafters S 41G W 3 (550 2100kc 2.1 7.7Mc 7.7 30Mc)

44 Hallicrafters Model S 38B SP SW Hallicrafters, Model S 38B Hallicrafters co., 5th and kostner Ave., Chicago Ill. 5 4 105 125V AC DC 0.23 A (117V AC) #1 550 1650kc #2 2.7Mc 5.1Mc #3 3.5 14.5Mc #4 13 31Mc 455kc 327 178 197mm 6.4kg IF A BFO 550kc 31Mc BFO A 1 5 5 4 3 10kΩ 13 31Mc AVC 12SA7 S 38 12SK7 1 BFO

45 A 1 12SQ7 2 BFO CW AM DET AVC ON OFF CONV IFA AFA PA A 1 AVC 12SA7 12SK7 12SQ7 50L6 AVC AVC 25Z5 RECT 12 S 38B 461pF 2 1 1 S 38 455kc AM CW CW AM CW S 38 #1 600 1500kc #2 5Mc #3 14Mc #4 30Mc

46 National Model SW 54 SW BFO ON-OFF SP National, Model SW 54 National Co., Inc., 61 Sherman St., Malden, Mass. 5 4 105 130V AC DC 0.26 A (117V AC) A 540 1600kc B 1.6 4.7Mc C 4.6 14.5Mc D 12 30Mc 455kc 279 178 178mm 5.9kg S 38B S 38B SWL S 38B SW 54 S 38B 5 4

47 12BE6 4 3 S 38B 12 441pF DET S 38B AVC CONV IFA AFA PA S 38 12BE6 12BA6 12AV6 50C5 31Mc AVC 30Mc 35Z5 RECT 1Mc 2Mc SW 54 12BA6 CW 12AV6 2 AVC 2.2MΩ 3 10MΩ 6AV6 5MΩ 3 50C5 2 A 1.600kc B 4.5Mc C 14Mc D

48 30Mc

49 National Model NC 33 BFO ANL AF SW National, Model NC 33 National Co., Inc., 61 Sherman St., Malden, Mass. 4 6 105 130V AC DC 0.22 A (117V AC) D 540 1600kc A 12.0 35Mc B 4.0 12.0Mc C 1.42 4.2Mc 456kc 423 222 216mm 9.5kg SW 54 S 38B 1 S 77 12SA7

50 23db 39db 10db 40db 18db 4.5db 30db 22db 600kc CONV 455kc IFA DET,NL AVC AFA BFO 400c/s PA 12SA7 12SG7 12H6 12SL7 35L6 AVC 35Z5 RECT NC 33 30Mc 12SG7 1 1 Q µ IFT 100pF 2 NL 12H6 BFO 12SL7 CW Phone ANL BFO A 12 34Mc B 4 11Mc C 1.5 4Mc D 500 1400kc 456kc 455kc

51 25.74 VA

52 Hallicrafters Model S 40A AVC NL BFO ON-OFF BFO SW Hallicrafters, Model S 40A Hallicrafters Co., 2611S Indiana Ave., Chicago Ill. AC 9 4 110 120V AC A 6.3V B 260V 0.62A (117V AC) 6.3V 5A 260V 70mA #1 540 1700kc #2 1.75 5.35Mc #3 5.35 15.7Mc #4 15.7 43Mc 455kc 470 229 280mm 12.7kg S 40 S 40 6SG7 1 2 (#3 5.35 15.7 Mc #4 15.7 43Mc 6SA7 #3 #4 4 3 1 S 38B S 40

53 12db 6db 31db 15db 38db 20db 48db 3db 38db 17db 600kc 455kc 400c/s RFA CONV IFA1 IFA2 DET-AVC-AFA PA 6SG7 6SA7 6SK7 6SK7 6SQ7 35L6 6F6 AVC 6J5 6H6 80 BFO NL RECT S 40A 6SA7 3 15 418pF S 40(540kc 44Mc) 6SK7 2 IFT 6SQ7 2 6H6 6SQ7 3 6F6 4.7kΩ 15kΩ S 40 6J5 BFO 1 #1 1,500 600kc #2 5 3Mc #3 14 10Mc #4 36 18Mc

54 Hallicrafters Model S 40B RF AF AVC BFO NL BFO Hallicrafters, Model S 40B Hallicrafters Co., 2611S Indiana Ave., Chicago Ill. AC 8 4 105 125V 0.61A (117V AC) #1 540 1680kc #2 1680kc 5.4Mc #3 5.3 15.5Mc #4 15.5 44Mc 455kc 470 229 279mm 15kg S 40A S 40 S 40 S 40B S 40 S 40 S 40B S 77 1 1 8 ST 80

55 RFA CONV IFA1 IFA2 DET AVC NL 6SG7 6SA7 6SK7 6SK7 6H6 AVC 5Y3 RECT AFA BFO 6SC7 PA 6K6 S 40B GT 5Y3GT S 40 S 40A S 40B 3 6SG7 6SK7 10kΩ 6SA7 3 #1 #2 #3 6SA7 0.003µF #4

56 6SK7 2 IFT NL AVC 6H6 6.8Ω 4V 2 2 DET AVC NL AVC 6H6 RF A IF A 2 CW AVC 150Ω AVC OFF BFO ON #1 600 1500kc #2 1.8 5Mc #3 14 18Mc #4 18 36Mc Band#4

57 Hallicrafters Model S 77 RF AF AVC BFO NL BFO Hallicrafters, Model S 77 Hallicrafters Co., 2611S Indiana Ave., Chicago Ill. 4 8 105 125V AC DC 0.4A (117V AC) #1 540 1680kc #2 1.68Mc 5.4Mc #3 5.3 15.5Mc #4 15.5 44Mc 455kc 479 229 241mm 18.6kg S 52 S 40B 2 Hallicrafters S 40B S 40B S 52 S 52 S 77 S 40 S 40A

58 12db 14db 3db 34db 4.5db 37db 3db DET,NL RFA CONV IFA1 IFA2 AVC 6SG7 6SA7 6SK7 6SK7 6H6 25Z6 RECT 28db BFO AFA PA 23db 6SC7 25L6 S 77 1950 µ S 52 6SG7 1 6SA7 6SK7 2 IF A 6H6 AVC6SC7 BFO AF A B 25Z6 GT 100V 6SK7 S 40B 25L6 S 40B S 52 DET NL 6H6 S 40B S 40B 110Ω 10W

59 S 40B S 40B 60W 40W #1 600 1500kc #2 1.8 5Mc #3 10 14Mc #4 18 36Mc

60 Hallicrafters Model S 53(A, Au) SW PU SW BFO N.L ON-OFF Hallicrafters, Model S 53 (A, Au) Hallicrafters Co., 441W, 5th Ave., Chicago 24 Ill. 8 5 105 125V 0.43A (117V AC) A 540 1630kc B 2.5 6.3Mc C 6.3 16Mc D 14 31Mc E 48 54.5Mc S 53 2075kc S 53A,Au 455kc 327 178 197mm 8.2kg IF2 S 53 S 38 S 53 S 53A S 53Au 21 429pF 2 S 38 550kc 31Mc 4 48 54.5Mc VHF 2 2

61 DET MIX IFA1 IFA2 ANL,AVC AFA PA 6BA6 6BA6 6BA6 6H6 6SC7 2 6K6 6C4 OSC 6SC7 2 BFO 5Y3 RECT S 53 (A AU) 1 IF 1 6BA6 6SA7 6BE6 S 53 E GT high/g m 5 6BA6 6C4 6C4 6BA6 S 53 53A Au

62 S 53 2075kc 53A Au 455kc S 53 1 2 IFT 2pF S 53 IFT S 53A Au IFT BFO S 53 A Au 6H6 2 6SC7 AF A BFO 6K6 PA S 40B A 200 1500kc B C D E 6Mc 15Mc 30Mc 52Mc A S 53 S 53A Au 53A Au

63 RME Model 45 Xtal Xtal SW RF BFO AF BFO ON-OFF RME Model 45 Radio Manufacturing Engineers, Inc., Peoria, Ill. 9 6 110-120V AC 1.53A(117V AC) #1 540 1600kc #2 1.6 2.9Mc #3 2.9 5.4Mc #4 5.4 9.8Mc #5 9.8 18Mc #6 18 33Mc 455kc 563 305 279mm 20kg RME 10 OM 80

64 15.5db 25db 23db 9db 46db 600kc RFA CONV XL IFA1 5db 455kc 48db IFA2 14db DET,BFO 7B7 7J7 7B7 7B7 7B7 AVC 31db 400c/s 24db 7A6 7C7 7C5 80 NL AFA PA RECT RME 45 2 #1 #2 4 2 #3 #4 #5 #6 2 #1 540 1600 kc 2 6K8 7J7 7B7 2 1 2 7B6 2 AVC 3 BFO 6H6 2 7A6 ON OFF

65 2 2 7C7 6V6 7C5 0.01µF+1MΩ 3400Ω 4Ω S AVC 2 R B R B B B #1 1600 1400kc #2 1800 2800kc #3 5Mc #4 9Mc #5 16Mc #6 30Mc

66 Hallicrafters Model SX 43 BFO ON, OFF BFO N.C. Hallicrafters, Model SX 43 Hallicrafters Co., 5th and Kostner Ave., Chicago 24, Ill. AC 11 7 AM FM 105 125V AC 0.68A (117V) #1 540 1700kc #2 1.7 5.0Mc #3 5 16Mc (AM) #4 15.5 44Mc #5 44 55Mc #3A 14.0 14.4Mc FM #5 44 55Mc #6 86 109Mc AM=455kc FM=10.7Mc (#5,#6) 470 225 305mm 18.6kg 540kc 109Mc AM FM Band#1 540 1700kc AM 6BA6 RF A 7F8 CONV 6SG7 6SH7 IF A 455 kc6h6 DET 6SQ7 6V6 AF A 6J5 BFO Band#2 #3 #4

67 22db 35db 600kc RF A 28db 20db 40db 4.5db 33db 455kc MIX IF A1 IF A2 10db DET.NL 6SK7 6K8 6K7 6K7 6SL7 XF AVC BFO AVC 6J5 6SL7 6N7 5Y3 OSC RECT INV 6F6 6V6 PA 6V6 30db 400c/s 26db SX43 Band#3A 20m 20m Band#5 AM 6BA6 RFA 7F8 CONV 10.7Mc 6SG7 IFA 6SH7 MIX (6J5 2nd OSC) 455kc 6H6 DET FM 6BA6 RFA 7F8 CONV 10.7Mc 6SG7;6SH7 2 IFA 6AL5 FM DFT AM FM Band#6 Band#5 2 #5 #6 6BA6 7F8 2 6BA6 RFA 1st Conv 7F8 12AT7

68 3 Band #1 #4 455kc Band#5 #6 10.7Mc 7F8 455kc 10.7Mc 1 6SG7 2 2nd MIX 6SH7 10.7Mc 455kc AM (455kc) 6H6 6J5 BFO Band#5 AM 2 6SH7 6J5 2nd 11.155Mc #5 #6 FM 10.7Mc IF FM 10.7Mc IF 3 6SH7 6AL5 FM IF 1 2 455kc 2 4 S AVC IF 1 6SG7 6SQ7 2 6V6 100Ω +0.02µF 6V6 1 4000Ω 2 500Ω 5000Ω 10.7Mc IF FM FM AM 455kc IF BFO Band#5 AM 2 6J5

69 #1 600 1500kc #2 2 4Mc #3 6 14Mc #3A 14 14.2Mc #4 18 36Mc #5 46 54Mc #6 89 106Mc Band#5 2 4 44.6Mc

70 Hammarlund Model HQ 129 X SW BFO MAN, AVC, BFO N.L. Hammarlund, Model HQ 129 X Hammarlund Mfg., Co., 460W. 34th St., New York N.Y. AC 11 6 105 125V AC 0.75A(117V AC) #6 540 1320kc #5 1.32 3.2Mc #4 3.2 5.7Mc #3 5.7 10Mc #2 10 18Mc #1 18 31Mc 455kc 511 279 343mm 21.3kg S SP 400 X 11 1 / 32 13 15 / 32 20 5 / 32

71 20db 20db 600kc RF A 29db CONV 12db 47db IF A1 23db 39db 12db 45db 455kc IF A2 IF A3 2db 18db DET.NL.AVC 400c/s AF A.NL 34db PA 6SS7 6K8 6SS7 6SS7 6SS7 6H6 6SN7 6V6 XF AVC 6SJ7 5U4 6SJ7 BFO RECT V.REG HQ 129 X 2 (C M1 C M2 ) 3 3 (C S1 C S2 C S3 ) #1 C M1 C S2 #2 C M1 C S1 #3 C M1 C S2 #4 C M1 + C S3 #5 C M1 C M2 #6 C M1 C M2 #1 #2 #3 #4 28 30Mc 14.0 14.4Mc 7.0 7.3Mc 3.5 4Mc 180:330 6SS7 1 #4 #5 6K8 6SS7 1 6K8 3

72 6SS7 3 2 AVC 2 4 2 6H6 2 IFT 6H6 6SN7 6V6 60 50 40 30 db 20 10 No.5 No.4 No.1 OFF 0 6 4 2 0 2 4 6 kc + HQ 129X 6SN7 S AVC 6 db 9 S 270kΩ S 50µV S9 BFO 6SJ7 5pF 6H6 RFA CONV IFA 3 BFO PA VR 105 1

73 #1 18 3Mc #2 10 18MC #3 57 10MC #4 3.2 5.7MC #5 1.4 3Mc #6 600 1250kc

74 Hallicrafters Model S 76,U AVC BFO SW N.L. BFO Hallicrafters Model S 76,U The Hallicrafters Co., 5th and Kostner Ave., Chicago Ill. 11 4 105 125V AC (S 76) 105 250V AC(S 76U) 0.71 A(117V AC) #1 538 1580kc #2 1720kc 4.2Mc #3 4.6 13Mc #4 12 34Mc 1 1650kc 2 50kc 470 229 241mm 18.6kg S 1949 FM

75 RF A 6CB6 1605kc 50kc 1st. MIX IF A CONV IF A 6AU6 6BA6 6BE6 6BA6 AVC DET.AVC NL BFO AF A PA 5Y3 VR 150 6C4 6AL5 6SC7 6K6 RECT V.REG OSC S 76 U 2 1951 S 6CB6 6CB6 120 6AK5 5 2µV 50mW 4 2 6C4 5 6AU6 2 538kc 34Mc 1650kc 1 6BA6 1 6BE6 2 (50kc)

76 2 2 50kc IFT 2 2 5 6db 500 c / s 3kc 6.8Ω 2 6AL5 6SC7 15MΩ BFO 500kΩ 0.005µF 2.3Ω 500Ω AVC 1 S S 1 50kc 2 #2 50kc IF BFO 1650kc 1 #1 600 1400kc #2 1.925 4.6Mc #3 5.1 11.5Mc #4 14 30Mc $169.50

77 National Models NC 2 40 D DT Xtal N.L. BFO A.V.C.M.V.C R.F.GAIN A.F.GAIN National, Models NC 2 40 D DT National Co., Inc. 61 Sherman St., Malden, Mass. AC 12 110 120V 220 240V AC 0.75A(117V AC) A 13.9 31Mc B 6.65 14.6Mc C 3.4 7.4Mc D 1.68 4.05Mc E 920 2100kc F 480 1040kc 10m 26.9 30.5Mc 20m 13.8 14.46Mc 40m 6.9 7.35Mc 80m 3.4 4.05Mc 455kc 489 271 393mm 29.5kg 18

78 22db 35db 28db 20db 40db 4.5db 33db 10db 600kc 455kc RFA CONV IFA1 IFA2 DET,NL 6SK7 6K8 6K7 6K7 6SL7 XL BFO AVC 6J5 6SL7 6V6 OSC 30db 400c/s 26db INV 6V6 5Y3 RECT 6SL7 PA 6V6 NC 2 40D DT 7 38pF 900pF ANT 15.5pF 21pF RF 28pF 15.5pF 21pF 38.5pF 16pF OSC 10pF 29pF 10pF 29pF 12pF 18pF 35pF 1500pF 750pF 300pF 1700pF 900pF 250pF A B C D E F NC 2 40D

ANT RF OSC 3 6 18 A B C D 1 2 B Band B B 6.65~14.6MC G G 20m 13.8~14.46MC NC 2 4D DT B 79 20m 13.8 14.46Mc 18 1 6SK7 Gm 6K7 6K8 3 6J5 6K8 3

80 6K7 1 6 6SK7 2 3 6SL7 10 KΩ 6SL7 6V6 B BFO 6SJ7 AVC 6V6 B AVC S 5Y3 GT A 30Mc B 141Mc C 7.2Mc D 4Mc E 1 2Mc F 500Kc 1Mc 10m 27 30Mc 20m 14 144Mc 40m 7 7.3Mc 80m 3.5 4.0Mc

81 100

82 National Model NC 173R NC 173T BFO BFO Xtal N.C AVC MVC National, Model NC 173R NC 173T Nationl Co., Inc., 61 Sherman St., Malden Mass. AC 13 5 110 120V AC 220 240V AC 0.68A (117V AC) 540 1600kc 1.6 4.3Mc 4.3 12Mc 12 31Mc 48 56Mc 455kc 501 257 317mm 19kg NC 183 National S NC 183 NC 173 NC 183 5 48 56Mc

83 20db 95db 600kc 21db 12db 42db 2db 455kc 38db 5.5db RF A MIX IF A1 IF A2 DET.AVC NL 6SG7 6SA7 6SG7 6SG7 6H6 6H6 XF OSC 6J5 AVC Amp. 6AC7 BFO 6SJ7 RECT V.REG 31db 26db 400c/s 5V3 OD3 AF A PA SP 6SJ7 6V6 NC-173R(T) 5 540kc 31Mc 4 48 56Mc 3.5 4.0Mc 14.0 14.4Mc 27 30Mc. 15 374pF 20pF 6J5 6J5 6SA7 6SG7 2 1 NC 183 IFT 510pF

84 6H6 2 6H6 AVC AVC 1 AVC 6AC7 2 6H6 BFO AVC CW AVC S AVC 6H6 BFO B BFO 6SJ7 BFO OFF VR150 SSB 6SJ7 0.005µF 500kΩ 2 6V6 270Ω B A 55 56Mc B 28 30Mc C 11 11.5Mc D 3.8 4.2Mc E 600 1500kc

85 Hallicrafters Mode1 SX 71 IF BFO BFO N.L Xtal Hallicrafters Mode1 SX 71 The Hallicrafters Co., 5th and Kostner Ave., Chicago 24 Ill. 13 5 105 125 V 0.75A (117V AC) 560 1600kc #1 1650 4700kc #2 4.7 13.4Mc #3 12.8 34Mc #4 46 56Mc 455kc/2.075Mc 330 130 280mm 15kg S SN

86 455kc RF A MIX CONV IF A1 IF A2 IF A3 6BA6 6AU6 6BE6 6SK7 6SK7 6SH7 2075Mc AVC XF 6C4 DET 6AL5 AVC RECT NL 6H6 AVC OSC VR 150 V.REG 5Y3 RECT AF A BFO 6SC7 BFO PA 6K6 SX 71 6m 3.5 4Mc 6.9 7.3Mc 14 14.4Mc 27 30Mc 47 55Mc 5 21Mc 21Mc 100 VFO 7 2 RF 6BA6 100Ω RF 6AU6 2075kc

87 6BE6 455kc 6SK7 2 6SH7 2 6BE6 S 76 6C4 BFO IFA 3 6SH7 2 6AL5 AVC NL 6H6 6AL5 AVC 6SH7 6H6 AFA 6SC7 BFO 6K6 2 3.2Ω 500Ω S AVC BFO NL OFF S 0

88 National Models HRO 7R 7T AVC SW Xtal AF BFO National Models HRO 7R 7T National Co., Inc,. 61 Sherman St., Malden, Mass. AC 13 110 120V AC 220 240V AC 6V A 14 30Mc B 7 14.4Mc C 3.5 7.3Mc D 1.7 4.0Mc E 900 2050kc F 480 960kc G 180 430kc H 100 200kc J 50 100kc 456kc 29.5kg HRO 500 PW HRO ST

89 4 5 40pF 1 1 21pF 1 12pF 1 2 5 5 120pF B 2 B 2 A A A B 2 4 4 3 3 3 "A" ANT "A" 1RF "A" 2RF "A" OSC 71pF 150pF 3 100pF 5 4 4 5 A 1 "B"5pF "C"12pF "D"25pF B 5 2 4 A 1 "B"5pF "C"12pF 1 "D"25pF B 2 5 4 A "B"5pF "C"12pF "D"25pF B 2 1 2 A B "B"260pF "C"610pF "B" "C" 71pF "B" "C" "D" ANT 3 "B" "C" "D" 1RF 3 "B" "C" "D" 2RF 3 "B" "C" OSC 1 2 3 "D" OSC 5 4 HRO 7R HRO 5 HRO 60 HRO 1947 8 A B C D 4 (430 480kc) 50 2050kc 5 9 27 30Mc 14.0 14.4Mc 7.0 7.3Mc 3.5 4.0Mc 50 450 (A) (B)

90 4 5 A 1 B 2 4 5 1,2 3 A 3 1,2 3 B HRO-7R B RF AVC 6K7 1 2 AVC MVC 1 330Ω 6C4 30Mc 26db 44db 10db 48db 14db 456kc RF A1 RF A2 MIX IF A1 IF A2 DET. AVC 6K7 6K7 6J7 6J7 6K7 6H6 XF AVC 6C4 OSC 6J7 BFO OA2 32db 400c/s 20db V.REG NL AF A PA 6H6 6SJ7 6V6 HRO 7R(T)

91 6SJ7 HRO 5 6J7 1 5 1 6 2 6K7 IFT MVC 10KΩ RFA 2 IFA 1 IFA 2 S ON OFF S AVC 2 6H6 NL ON OFF 6V6 0.003µF 6SJ7 AC 5Y4G Type 697 Power unit Type 6865 Power unit 3V 456kc 456kc 455kc IFT

92 A 14.4 30.0Mc 54 485 B 7.0 14.4Mc 28 485 C 3.5 7.3Mc 23 490 D 1.8 4.0Mc 36 490 A 27.2 30.0Mc 61 450 B 14.0 14.4Mc 50 450 C 7.0 7.3Mc 50 450 D 3.5 4.0Mc 50 450 HRO

93 National Models NC 183R 183T BFO BFO ON-OFF Xtal N.L SW PU-RADIO RF SW SW ANT National Models NC 183R 183T National Co., Inc,. Sherman St., Malden Mass. 16 5 110 120V 220 240V 6V 135 250V B 540 160kc D 1.6 4.3 Mc C 14.3 12Mc B 12 31Mc A 48 56Mc 455kc 501 260 425mm 29.4kg NC 173 National National NC 173 44 55Mc NC 183D NC 173 1 6V6

94 0db 6db 6db 20db 8db 40db 600kc 0db 455kc 39db RF A1 RF A2 MIX IF A1 IF A2 DET.AVC NL 6SG7 6SG7 6SA7 6SG7 6SG7 6H6 6H6 RECT V.REG 6J5 AVC Amp. 6AC7 6SJ7 BFO 5U4G OD3 OSC 28db 2db 28db 400c/s AF A INV 6V6 6SJ7 6J5 PA 6V6 SP NC 183R S AVC R T R T NC 173 5. (Main 16 358pF) NC 173 1 4 ANT RF MIX OSC A E B C D

95 OSC MIX RF ANT 1 6SG7 RFA 2 IFA 2 6SG7 AVC IFA 1 S AVC 6SJ7 1 AVC S NC 173 6V6 6J5 B NFB 2 6SJ7 8Ω OFF 6SJ7 AVC AMP 6AC7 RFA 1 RFA 2 MIX IFA 1 IFA 2 AC A 6V B 135 250V B VR 150 135 150V AC

96 A 56Mc B 14 30Mc C 5 11Mc D 1.8 4Mc E 6000 180kc

97 AVC Hallicrafters Model SX 42 NL Xtal BFO ON-OFF BFO SW SW Hallicrafters Model SX 42 Hallicrafters Co., 5th and Kostner Ave., Chicago Ill. AC 15 8 105 125V AC 1.07A(117V AC) AM #1 540 1620kc #2 1.6 5Mc #3 5 15Mc #4 15 30Mc AM/FM #5 27 55Mc #6 55 110Mc 455kc(#1 #4) 10.7Mc(#5 #6) 508 260 203mm 23.6kg SX 43 SX 43 (27 100Mc) 10.7Mc IF 455kc 2

98 600kc 455kc (=5,6 #10.7Mc) #1 #3-6 #2 40db 8db 3.5db 26db 9db 25db 46db 43db RF A1 RF A2 CONV IF A1 IF A2 6AG5 6AG5 7F8 6SK7 6SG7 7H7 XF AVC 7A4 24db IF A3 BFO 5U4G RECT OB3 V.REG 6V6 PA 6V6 21db AF A INV 6SL7 30db AM FM NL(AM) 6H6 DET(FM) 6H6 7H7 DET AVC (AM) IF A4(FM) 10.7Mc 400c/s SX 42 FM SX 43 1 FM 4 7H7 AM SX 43 FM 6V6 6AG5 2 #1 (540 1620kc) 2 9db #2 1 2 2 4 (19 397pF) (12 90pF) 1 7F8 3 3 #1 #4 455kc #5 #6 10.7Mc

99 6SK7 2 6SG7 3 7H7 10.7Mc 455kc IF 10.7Mc 455kc 1 3 3 6 3 7H7 10.7Mc IF 4 7H7 7H7 AM 2 AVC 10.7Mc FM 6H6 AM 6H6 CW AM FM PHNO 6SL7 6SL7 6V6 BFO 7A4 10.7Mc 455kc #5 #6 10.7Mc #1 #4 455kc 3 7H7 10.7Mc 455kc S 2 6AG5 AM 7F8 S.S.G 455kc #1 BFO 455kc 10.7Mc #5 IFT BFO 10.7Mc IFA 4 (7H7) 10.7Mc 2

100 #1 600 1500kc #2 2 4Mc #3 7 14MC #4 28MC #5 30 50Mc #6 60 105Mc #5 #6

101 Hallicrafters Model S 47 SW AM SW FM Hallicrafters, S 47 Hallicrafters Co., 5th and Kostnerl Ave., Chicago 24, Ill. AC 15 AM FM 105 125V AC 1.4A(ll7V AC) 540 1700kc 5.8 18Mc 9 12Mc 15 18Mc FM 88 108Mc AM 455kc FM 10.7Mc 508 260 406mm 28kg FM 540 1700kc 5.8 18Mc FM 88 108Mc

102 600kc 455kc (AM) 10db 8db 14db 0db 26db 6db 26db RF A MIX OSC AFC IF A1 IF A2 6db IF A3(FM) DET(AM) 6BA6 6BE6 6J6 6SG7 6SG7 6SG7 AVC LIM(FM) DET(FM) 6SH7 6AL5 5U4G AFC RECT 400c/s 23db 6db 5db 22db FM AM AFA1 AFA2 AFA2 INV 6J5 6J5 6SQ7 6SQ7 6V6 PA 6V6 S 41 6V6 NFB 3 3 100 3 1 3 (12 475pF) 5.8 18Mc 15 18Mc 9 12Mc 2 88 108Mc 3

103 6BA6 6BE6 6J6 6AL5 6J6 10.7Mc 455kc 6SG7 2 FM 3 10.7Mc 455kc IFT treble 455kc AM 6SG7 AVC 1 3 6SG7 10.7Mc FM 6SH7 6AL5 1 6J5 2 6J5 treble 2 12.5H 10kΩ 3 6SQ7 6SQ7 6V6 1 7kΩ 2 500Ω 2 3 NFB AM FM AM 455kc BC 1500kc 600kc C 16Mc A 18 15Mc B 12 9Mc FM 1 10.7Mc 2 10.7Mc 250 kc 6SH7 6AL5 S 150Ω

104 108Mc

105 Collins Mode1 75A 1 Xtal BFO NL RF AF Collins, Mode1 75A 1 Collins Radio Co., Cedar Rapids, Iowa. 14 6 110 120V AC 0.8A(117V AC) 80m 40m 20m 15m 11m 10m 3.2 4.2Mc 6.8 7.8Mc 14.0 15Mc 20.8 21.8Mc 26.0 28.0Mc 28.0 30.0Mc 1 80m 15m 1.5 2.5Mc 11m 10m 3.5 5.5Mc 2 500kc 536 311 352mm 25.8kg

106 RF A 1-MIX 1.5~2.5Mc 80-5m 3.5~5.5Mc 11-10m 1-IF A 5db 6db 6.5db 47db 40db 48db 500kc 400c 17db DET 2-MIX 2-IF A1 2-IF A2 NL.AVC AF A PA 6AK5 6SA7 6SK7 6L7 6SG7 6SG7 6H6 6SJ7 6V6 XF AVC 6AK5 6SJ7 6SJ7 6SJ7 5Y3 1-OSC 2-OSC AVC.AMP BFO RECT 75A 1 Collins 500kc 5.5 3.5Mc 2.5 1.5Mc 2 5.77 9.33 16.5 23.3 31.5 33.5Mc 1 1 3.5Mc 80m (5.7Mc) 2.2Mc (2.5 1.5) 2.2Mc 500kc 2 1 1 1 µ IFA 1 L 1 L 2 µ 5.5 3.5Mc L 1 L 2 2.5 1.5Mc C 1 C 2

107 1-MIX (6SA7) A B A=5.5-3.5Mc B=2.5-1.5Mc A B 1-IF A (6SK7) L1 51p C1 330P C2 330P L2 2.2K.1.01 10K B+ AVC 75A 1 1 2 6SJ7 520pF high C Collins 2 3Mc 100 6AK5 1 6AK5 80 40m 1 6SA7 1 6SK7 6SJ7 2 2 6L7 AVC 6SK7 AVC 6L7 S 6SG7 2 500kc 2 1 NL 6H6 AVC 6SJ7 RFA 1 IFA 2 IFA 1 2 IFA 2 BFO 6SJ7 6H6 6SJ7 6V6 500kc 2IF 6SA7 2.5 1.5Mc

108 80m 3.2 4.2Mc 5.5 3.5Mc 10m 28 30Mc 1 80m 4.1 3.3Mc 40m 7.7 6.9Mc 20m 14.9 14.1Mc 15m 21.7 20.9Mc 11m 27.9 26.1Mc 10m 29.9 28.1Mc 1 3.7 7.3 14.5 21.3 27 29Mc 500kc JJY 7 15 21 27 29Mc Q5er 2 500kc 2 Collins 75A 2 IFT 1 75A 3

109 National Models HRO 50 R1 T1 P.L. N.L. SW Xtal SW Xtal Xtal AVC National, Models HRO 50 R1 T1 National Co., Inc., 61 Sherman St., Malden 48, Mass. 16 110 120V AC 0.88A(117V AC) A 14.0 30.0Mc B 7.0 14.0Mc C 3.5 7.5Mc D 1.7 4.0Mc E 900 2050kc F 480 960kc G 180 430kc H 100 200kc J 50 100kc AA 27.5 30Mc AB 25 35Mc AC 21.0 21.5Mc 455kc 501 257 420mm 43kg National HRO PW HRO

110 RF A1 RF A2 MIX IF A1 IF A2 IF A3 6BA6 6BA6 6BE6 6K7 6SG7 6SG7 XF AVC OSC 6C4 S Meter S Meter Amp 6SN7 2 BFO 6H6 DET.AVC 6H6 NL AF A INV 6V6 5V4 OB2 6H6 6SJ7 6SN7 2 PA RECT V.REG 6V6 HRO 50 R1 T1 NBFM PW 4m 500 PW 25Ω 6BA6 2 6C4

6BE6 1 6K7 2 455kc off 5 20db 7.8kc 200 c / s 40db 13 1.2kc 60db 21 3.2kc 6H6 2 AVC 6H6 off 6H6 R 8 R 5 R 9 B+ 6H6 R 3 C 2 6H6 R 7 C 4 AF ON AVC R 8 R 4 R 1 R4 220K R8 220K C1 270p R1 500K R2 22K R5 220K C3.1 OFF ON R3 6H6 470K C2.1 R7220K R6 470K R9 820K Β+.1 HRO 50 T ANL C4.01 111 AF R 4 C 3 R 1 R 5 R 9 6H6 off 6H6 AF 6SN7 S 6V6 p.p. 6SJ7 2

112 80 8000 c / s 100 c / s 15db 200 c / s 5db 300 c / s 10db 800 c / s 20db BFO 6J7 6K7 HRO A 30 14.4Mc B 14 4.7Mc C 7.3 3.5Mc D 4 1.8Mc E 2 1Mc F 0.9 0.7 0.5Mc G 200 300 400kc H 100 150 200kc J 50 75 100kc AA 27.7 28Mc AB 25 30 35Mc AC 21 21.3 21.5Mc A 30 27.7Mc B 14.4 14Mc C 7 7.3Mc D 4 3.5Mc

113 Hammarlund Model SP 400 X Xtal BFO Xtal N.L. AVC ON-OFF BFO-SW AF Hammarlund Model SP 400 X Hammarlund mfd. Co., 460w. 34th St. New York N.Y. 18 5 105 125V AC 1.46A(117V AC) 6.25A 6V 117mA 225V 4.5A 90V C 10mA 45V 540 1240kc 1.24 2.86Mc 2.85 6.3Mc 6.3 14.0Mc 13.4 30.0Mc 455kc 546 311 387mm 30.3kg Collins 75A National

114 14db RF A1 18db 27db 600kc RF A2 42db 20db 52db 22db 47db 455kc MIX IF A1 IF A2 22db 47db IF A3 4db DET 6K7 6K7 6L7 6K7 6SK7 6SK7 6H6 AVC XF AVC.DET AVC.AMP 6J7 6H6 6SK7 6N7 6SJ7 5U4 5Y3 OSC RECT Bias RECT AFA 6J5 DR 6F6 6F6 PA 6F6 22db 1db 18db 400c 12db SP 400 X HRO Hammarlund SP SP 600 JX SP 400 X 2 6K7 RF 540 1240kc 20Ω Q HQ 129X 3

115 6J7 3 6L7 3 6L7 5 OSC MIX RF ANT 3 1 6K7 2 6SK7 2 6H6 2 3 6N7 6SJ7 BFO ECO AVC 6SK7 3 6SK7 BFO AVC AVC BFO AVC 6H6 6J5 3 6F6 6F6 5U4G 5Y3GT

116 590 1200kc 1.3 2.85Mc 2.85 6.2Mc 6.3 14.0Mc 14 30Mc

117 Collins Model 75A-3 BFO N.L. N.L. FM CW AM Xtal AF ANT Collins, Model 75A-3 Collins Radio Co., Ceder Rapids, Iowa. 18 7 110-120V AC 0.9A(117V AC) 1.5-2.5Mc 3.2-4.2Mc 6.8-7.8Mc 14.0-15.0Mc 26.0-28.0Mc 28.0-30.0Mc 1 3.445-5.445Mc 2.5-1.5Mc 2 455kc 536 317 333mm 22.7kg

118 RF A 1-st IF 3.455-5.455Mc 2.5-1.5Mc 2-nd IF=455kc 1-MIX 2-MIX 2-IF A1 2-IF A2 2-IF A3 2-IF A4 6CB6 6BA7 6BA7 6BA6 6BA6 6BA6 6BA6 AVC XF BFO 5Y3 RECT OA2 V.REG 12AT7 1-OSC (X-tal) 6BA6 OSC BOFF 2955 6BA6-1955kc 2-OSC(VFO) 6AL5 AVC AMP AF A 12AX7 6AL5 6AL5 6AQ5 6BA6 AVC DET NL(FONE) NL(CW) PA 75A 3 Collins 75A 2 75A 1 IF=455kc IFT 75A 1 75A 2 IFT Hallicrafters SX 88 (50kc) Q5er (db) 10 20 30 40 50 5 4 3 2 1 0 1 2 3 4 5 + 455kc (kc) 0

119 LC 9 SSSC SSSC 75A 2 75A 3 75A 1 75A 2 1 6CB6 1 12AT7 1st MIX 6BA7 2nd MIX 6BA7 6BA6 2nd OSC 6BA6 75A 1 µ 1 2 160m 1 2nd OSC 70E 12 6 6BA6 4 455kc 2 1 5 1 2 800c/s 3kc 6AL5 AVC 12AX7 AVC AMP AFA 6AL5 6AQ5 75A 1 1 75A 1 S.S.G.=2.4 1.6Mc =3.3 4.1Mc( 80m ) S.S.G.=5.445 3.455Mc =28 30Mc( 10m )

120 160m 1.6 2.4Mc 80m 3.3 4.1Mc 40m 6.9 7.7Mc 20m 14.1 14.9Mc 15m 20.9 21.7Mc 11m 26.2 27.8Mc 10m 28.2 29.8Mc 75A 1 75A 2

121 Ranger Model 118 Battery Operated AC,DC Ranger, Model 118 Electronic Specialty Co., 3456 Glendale Blvd., Los Angeles 26, Calif. 5 3 110 120V AC DC 4.5VA 67.5V B 0.28A(117V AC) 112mA(4.5V) 15mA (67.5) 550 1550kc 195 410kc 150kc IF 150kc 2

122 25db 19db 32db 10db 37db 2db 32db 26db 600kc 150kc 400c DET RF A CONV IF A AVC AFA PA 1T4 1R5 1T4 1S5 3Q4 RECT AVC ll8 1T4 1R5 1 1R5 1T4 1 AVC B 100 kω 3Q4 OFF 1 3Q4 1T4 2 1S5 1R5 4.5V AC DC AC DC AC DC

500 1550kc200 400kc 2 20 378pF 123

124 Hallicrafters Model S 72 A1,A3 SW Hallicrafters, Model S 72 The Hallicrafters Co., 5th & Kostner Ave., Chicago, Ill. 3 4 105 125V AC DC 7.5V 90V 0.37A(117AC) 110A(7.5V) 30mA(90V) #1 1550 1600kc #2 21.5 4.4Mc #3 4.5 11.5Mc #4 11 30Mc 455kc 185 310 355mm BFO NL 18.5 31 35.5cm 7.2kg 6 4 Raner 118

125 RF A MIX IF A1 IF A2 DET.AVC AF A 1T4 1U4 1U4 1U4 1U5 AVC PA RECT 1R5 OSC 1U5 BFO NL 3V4 72 BC 4 70cm 1R5 #1 #1 1T4 #2 #3 #4 1T4 1 1U4 AVC AVC 1R5 3 1U4 1R5 7pF+47Ω 2 1U4 1 2 1 2 1U5 2 AVC 5 470pF ON OFF

126 BFO 1U5 5 3 µ 2 3V4 0.001µF ON OFF S 38B 3V4 1 7000Ω 2 3.6 500 5kΩ OFF 7.5V AC DC 115mA B #1 l500kc #2 4.4Mc #3 11.5Mc #4 30Mc S 72L

127 Hallicrafters Model SX 62 N.L. SW SW SW Hallicrafters, Model SX 62 The Hallicrafters Co., 5th & Kostner Ave., Chicago 24, Ill. AC 16 AM FM 105 125V AC 0.98A(117V AC) #1 1550 1620kc #2 1.62 4.9MC #3 4.9 15Mc #4 15 32Mc #5 27 56Mc AM FM #6 54 109Mc AM FM 455kc = AM 10.7Mc = FM 508 260 203mm 23.6kg SWL XYL

128 IF=455kc (#1~4), 10.7Mc (#5,6) #1,3-6 #2 6C4 X-tal CAL. 5U4G RECT RF A1 RF A2 CONV IF A1 IF A2 6AG5 OB3 V.REG 6AG5 6V6 PA 6V6 7F8 6SK7 6SG7 7H7 XF AVC AF A INV 6SL7 AM FM NL(AM) 6H6 DET(FM) 6H6 7A4 BFO IF A3 7H7 DET AVC (AM) IF A4(FM) 10.7Mc SX 62 4 (LOW MED HI-FI BASS) 6V6 10W R 46A HI-FI HI-FI 30 18000 c / s LOW 1kc 4db 3kc 10db MED 1kc 2db 3kc 4db BASS 30 c / s 500 c / s 80 c / s 8db 6 FM SWL DX 60:1 500kc AM SW FM Hallicrafters SX 42

129 6C4 SX 42 SX 42 SX 42 BFO 10 1 / 4 20 16 77 SX-42 BFO ANL AVC 300Ω 2 3.2 8 500Ω SX-62A SX-42 349 99 #1 l500 600kc #2 4.5 2Mc #3 14 7Mc #4 28 18Mc #5 50 30Mc #6 105 60Mc

130 U.S. Signal Corps BC 348E M P(C K R H) Xtal ON, OFF BFO RF ANT OFF AVC MVC BFO E A Signal Corps BC 348E M P(C K R H) 8 6 28V DC 200 500kc 1.5 3.5Mc 3.5 60Mc 6.0 9.5Mc 9.5 13.5Mc 13.5 18Mc 915kc 452 264 238mm 16kg BC 348 BC 342

131 IF=915kc RF A1 RF A2 MIX IF A1 IF A2 DET.AVC IF A3 PA 6K7 6K7 6J7 6K7 6F7 6B8 41 AVC XF BFO AVC (6K6) 6C5 (6J5) OSC BC 348 E M P(C K R H) AVC MVC BFO BFO 7 BC 348 E M P J N Q 2 2 8 RF2 IF3 AFA1 (200 500kc) 3 1 4 6K7 6SG7 6AC7 SN 6J7 High Gm

132 915kc IF3 Q5er S 75µA AVC 60µA MVC AVC S AVC MVC 2 BFO ON OFF AVC 6B8 5 3rd IF 41 6K6 600 Ω 4000Ω 2 2 7Mc 2kc 348 J N Q E M P 28V

133 2 KK JBC 610 51 J KK RAP 261 SP 600JX KK 1

134 2 2 3

135 1 IFT 3 1 1 4

136 5

137 RAP 261 A 1 A 2 A 3 KK RAP 261C CL CM 21 5 6 80 110V 180 210V AC 1.5A (100V AC) RAP 261 C 540 1300kc 1.3 3.1Mc 3.1 7.4Mc 7.4 14.8Mc 14.8 28Mc 28 50Mc RAP 261 CL 100 200kc 200 400kc 1.3 3.1Mc 3.1 7.4Mc 7.4 14.8Mc 14.8 28Mc 28 50Mc RAP 261 CM 230 540kc 1.5 3.5Mc 3.5 8.3Mc 8.3 16.2Mc 16.2 30Mc 1 3955kc 2 455kc RAP 261CM 630kc

138 RF A1 RF A2 MIX 6BA6 IF A1 IF A2 IF A3 IF A4 DET.AVC 6BA6 6BA6 6BE6 6AH6 6BA6 7.4Mc 6BA6 6BA6 6BA6 6BA6 6BA6 6BA6 X.F BFO 6BA6 BFO AMP 6BA6 6AL5 NL 6AL5 Meter OSC Xtal OSC 6V6 12AU7 6AL5 5Z3 LS58 PA AF A IF OUT IF A OUT RECT RECT V.REG. RAP 261 KK RAP 261

139 RAP 261 RAP 261 3 RAP 261 C RAP 261 CL RAP 261 CM 50 250c/s 2.5kc 50 3kc 40 5kc 10kc 40 300c/s 1kc 30 30 20 20 10 10 12 10 8 6 4 2 50kc 2 4 6 8 10 12 14 16 14 12 + 10 RAP 261 8 6 4 2 50kc 2 4 6 8 10 12 14 +

140 µv) 1.5 1 0.5 0.3 0.5 0.7 1 1.5 2 3 4 5 7 10 15 20 30 40 50 110 100 90 80 70 60 0.5 0.7 1 1.5 2 3 4 5 7 10 15 20 30 40 50 8 6 4 2 0 0.5 0.7 1 1.5 2 3 4 5 7 10 15 20 30 40 50 RAP 261 2 3 7.4Mc RAP 261 CM 8.3Mc 6AH6 1 4

141 4 13kc 3kc 1kc 300c/s AVC 3µV 30mV 10db MVC 80db

142 http://bama.edebris.com/manuals/ bama djvu djvu Sumatra PDF http://blog.kowalczyk.info/software/sumatrapdf/free-pdf-reader-ja.html PDF djvu bama PDF RME DB-22A http://bama.edebris.com/manuals/rme/db22a/ GON SET 3-30 http://bama.edebris.com/manuals/gonset/3-30/ RME HF-10-20 http://bama.edebris.com/manuals/rme/rmehf1020/ Hallicrafters S-38 http://bama.edebris.com/manuals/hallicra/s38/ Hallicrafters S-38B http://bama.edebris.com/manuals/hallicra/s38b/ National SW-54 http://bama.edebris.com/manuals/national/sw54/ National NC-33 http://bama.edebris.com/manuals/national/nc33/ Hallicrafters S-40A http://bama.edebris.com/manuals/hallicra/s40a/ Hallicrafters S-40B http://bama.edebris.com/manuals/hallicra/s40b/ Hallicrafters S-77 http://bama.edebris.com/manuals/hallicra/s77/ Hallicrafters S-53 http://bama.edebris.com/manuals/hallicra/s53sams/ RME 45 http://bama.edebris.com/manuals/rme/rme45/ Hallicrafters SX-43 http://bama.edebris.com/manuals/hallicra/sx43/ Hummarlund HQ-129X http://bama.edebris.com/manuals/hammarlu/hq129x/ Hallicrafters S-76 http://bama.edebris.com/manuals/hallicra/s76/ National NC-2-40D http://bama.edebris.com/manuals/national/nc2-40d/ National NC-173 http://bama.edebris.com/manuals/national/nc173/ Hallicrafters SX-71 http://bama.edebris.com/manuals/hallicra/sx71/ National HRO-7 http://bama.edebris.com/manuals/national/hro7/ National NC-183 http://bama.edebris.com/manuals/national/nc183/ Hallicrafters SX-42 http://bama.edebris.com/manuals/hallicra/sx42/ Hallicrafters S-47 http://bama.edebris.com/manuals/hallicra/s47sams/ Collins 75-A1 http://bama.edebris.com/manuals/collins/75a1sams/ National HRO-50 http://bama.edebris.com/manuals/national/hro50/ Hammarlund SP-400 http://bama.edebris.com/manuals/hammarlu/sp400/ Collins 75-A3 Hallicrafters S-72 http://bama.edebris.com/manuals/hallicra/s72/ Hallicrafters SX-62 http://bama.edebris.com/manuals/hallicra/sx62/ U.S. Signal Co. BC-348 http://bama.edebris.com/manuals/military/bc348/

143 1956 VT url PDF LATEX 2εdvipdfmx http://www.cam.hi-ho.ne.jp/munehiro/ http://fomalhaut.web.infoseek.co.jp/radio/radio-circuit.html