Vintage_VLF_receivers_1984.pdf

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1、VINTAGE VLF RECEIVERS A COLLECTIVE PROFILE by Harold A. Layer AV -SF State U. 1600 Holloway Ave. San Francisco, CA 94132 This third edition of my directory attempts to list every vacuum tube radio receiver ever built that could tune within the bands of 3 -30 kHz or even 3 -3000 Hz. Radio began in th

2、e longwave sectrum and the importance of these remark- able sets for military de- fense, RFI studies and scientific research cannot be overestimated. Some were state- of -the- art military secrets; conse- quently, information about them is difficult to find. Not included in this list are fixed chann

3、el sets, untuned sferics direction finders and low- sensitivity tunable voltmeters. Correc- tions and additions are wel- come. Page 13 RAA FIRST VLF SUPERHET IP-501 -A AR-8500 SARGENT MODEL II KENNEDY MODEL 110 Plop -In Co . Fila ment Fia On -ON Volt- ment S. tcn meter Ff.oalat AR-8503 Plua- Filamen

4、t in On-ON Vnit- Cods Switch mele, FlIlm.nl PneoNat RBA W /POWER SUPPLY 117B : . . . ,*-X9Lj 128AY RBL AR-8510 3001-A Chart follows on next page. Pictures continue on p. 19. Page 14 VINTAGE RECEIVERS from p.13 PATE MODEL I 4 TUNING SELECTIVITY WT. TUBES PWR iEATURES - c.1918 SE -1617 18k -43k 6 B RF

5、;3 RF statges;reg. det.; 2 AF stages c.1920 IP -501 requires IP -503 long -wave loading unit for 15- 37.5kHz lange; 2 AF stages. 1920 CR -7 Grebe 15k -1.7M 1 B reg. det. c.1921- RA 16k -1.2M B TRF; submarine use c.1921 RB 10k -40k B RF; requires SE -1530 receiver unit c.1922 110(Universal) iennedy 1

6、2k -1.7M var. coupling 27 1 B Reg. detector (280) c.1922 RD 12k -1.2M B TRF c.1924 RE 1 RL 10k -100k audio filter 6 B RF;requires SE -1834 PF amp with 3 pea - ut -tube stages; reg.det.;2 AF stages c.1925 SE -2300 IRL 10k -2.3M .- B RF; 1 RF stage; reg.det.; 2 AF stages c.1926 RK 12k -375k B TRY c.19

7、29 RQ(CAY -3355) esting- house 15k -1.0M 700Hz audio ftr 5 B TRF;3 RF stages;reg.det.;plug -in coils, HF twin is CAY -3356 1930 R0(CG -3362) IRL 2 RF stages;heterodyne det. below 45kHz, autodyne det. above;plug -in oils, HF twin 1930 R0 -2(CAY -3940) esting- house 15k -1.0M 800Hz audio ftr 60 7 B TR

8、F;4 RF stages;reg.det.;plug -in coils, HF twin is CAY -3941 1931 RAA RCA 10k -1.0M 1kHz audio ftr 465 11/3 AC Superhet; 1 RF stage; 2 IF stages with four switched IF freq.;AVC;BFO;HF twin s RAB 1932 RAC NRL 12k -80k 800 heterodyne det.; 2 AF stages;requires SE -4511 RF amp /det.unit 1932 GK -1 estin

9、g- house 15k -1.0M 7 B /AC RF;3 RF stages; heterodyne det.; ariable AVC; HF twin is RAH 1933 RAG(CHS- 46042) Sylvania 14k -600k multi -1 audio filter 93 8/1 B /AC RF;3 RF stages; heterodyne det.; variable AVC; HF twin is RAH c.1935 AR -8500 RMCA 15k -1.7M fixed bandwidth 4 B TRF;1 RF stage;reg. det.

10、; plug -in coils 1935 RAK RCA 15k -600k multi-1 audio filter 116 6/2 B /AC TRF;2 RF stages; autodyne det.; ariable AVC; HF twin is RAL c.1937 11- U(Universal) Sargent 15k -31.6N 35 4/1 B /AC/ DC Re_ TRF; reg.det., built -in speaker det. 1938 CXS Bendix 15k -1.5M 10 DC Superhet; directionfinder; 1 RF

11、 stage; 2 IF stages; BFO; does not tune 70 kHz - 1939 DZ(ADF) CA 15k -1.5M 1020kHz audio 37 8 DC 100kHz range 1939 RAZ(AR -8503) rMCA 15k -600k fixed bandwidth 29 4/1 B /AC TRF;1 RF stage: ree.det.: optional preselector c.1940 117B 1.ckay 16k -20M fixed bandwidth 5/1 B /DC TRF;1 RF stage; reg.det.;

12、plug -in coils 1940 RBA federal 15k -600k 1 kHz audio ftr 147 8/2 AC TRF;3 RF stages; heterodyne det.; BFO; variable volume limiter 1941 128AY(R- 212 /SR) (RC -123) federal 15k -650K fixed bandwidth 43 5/1 B /AC TRF;1 RF stage; 1 RF regenerator; grid - bias det. 1941 RBL ational 15k -600k var BW to

13、600Hz 75 6/1 B /AC TRF:2 RF stages;reg.det.; variable vol - ume limiter;HF twins are RAO or RBH 1942 AR -8510 (R- 215 /SR) CA 15k -650k fixed bandwidth 39 5/1 B /AC TRF;2 RF stages; regenerative detector; speaker 1943 BC -969 (SCR -614) ajestic 15k -150k variable BW 119 11/2 AC Superhet;1 RF stage;2

14、 IF stages with crystal filter;AVC;BFO;noise limiter c.1943 AN /URR -2 CA 14k -32M Small Navy craft use c.1947 3001 -A .ckay 15k -650k fixed bandwidth 5/1 B /AC TRF;1 RF stage;1 RF regenerator;grid - .ias det.;built-in speaker 1949 NM -10A (AN /URM -6) .toddart 15k -250k var BW to 100Hz 51 16/5 AC F

15、I- laboratory superhet;1 RF stage;3 IF stages;AGC;BFO;calibrator 1950 AN /SRR -11(R -439) CA 14k -600k var BW to 300Hz 65 24/3 AC Superhet;duo- conversion;2 RF stages;4 1954 AN /FRR -211(R -501) IF stages;BFO;noise AN /MRR -1 tal calibrator;peanut tubes;HF twins are SRR -12 and SRR -13 1954 R- 389 /

16、URR ollins 15k -1.5M var BW;100Hz- 70 30/7 AC Superhet, duo- conversion;2 RF stages;6 8kHz IF stages;crystal osc;AGC;BFO;variable oise limiter;digital tuning;HF twins .re R -390 and R -391 1956 NM -40A Stoddart 30Hz -15k var BW:8Hz -60Hz 120 33 -4 /AC RFI- lab.superhet;3 RF stages;quad diode (AN /UR

17、M -41) 4 -1 .alanced mixer;4 cascaded IF stages; BFO;AGC;calibrator 1956 SP- 600VLF Dero 2F ammar- lund /Dero 10k -540k var BW:200Hz- 6kHz 70 17/4 AC Superhet;duo- conversion;2 RF stages;3 IF stages with crystal filter;noise Iimiter;BFO;AVC;HF twin is SP -600 1960 AN /BRR -3(R -988) federal 14k -30k

18、 var BW:60 /120/ 85 26/3 AC Superhet;single- conversion;3 RF stages; (ITT) 150Hz BFO;AGC;noise limiter;CRT diodes .isplay;digital tuning,built -in FSK Iecoder 1961 NF- 105 /TX 1 pire 14k -1Ghz fixed bandwidth 71 22 calibraotr;5 large diodes .lug -in tuning modules with diff. IF .tages;BFO 1962 AN /W

19、RR -3(R -1134) agnavox 14k -600k var BW:350 /lk/ 70 16 -4/ AC Superhet;duo- conversion;2 RF stages; 3kHz 5 BFO;noise xtal calib.; .igital dial - NOTE: TUBES column denotes number of tubes /diodes in receiver and tubes /diodes in power supply. VINTAGE RECEIVERS from p.13 Page 19 110 NM-10A NF-105 NM-

20、40A FIRST ELF SUPERHET ; . t, AN/ WRR- 3 vie AN/ BRR-3 AN/SRR-11 SUPER PORTABLES AT SUPER PRICES SPECIAL FACTORY PURCHASE FOR MONITORING TIMES SUBSCRIBERS! Prices Valid Through March 31, 1984 Only! SONY ICF -2002 $.2-219-4.5 BOTH RECEIVERS HAVE: 150 -30,000 kHz AM /CW /SSB 88 -108 MHz FM Keyboard fr

21、equency entry Built -in and external antenna Memory channels Sleep timer LED tuning strength indicator LCD frequency display Step /scan tuning Wide /narrow selectivity O N L Tone control Sensitivity switch Earphone included BFO /fine tuning control ONLY $219 including shipping! ADDITIONAL FEATURES:

22、SONY ICF -2002 Shortwave broadcast band quick -select 12/24 hour quartz clock 10 channel memory Coat- pocket size (5/8 x 7 x 1 ) 76 -108 MHz extended coverage 3 kHz (MW)/ 5 kHz (SW) tuning steps CALL TOLL -FREE 1- 800 -438 -8155 ORDER NOW! UNIDEN CR -2021 $-1213-9.-495, Y $ 189 including shipping! A

23、DDITIONAL FEATURES: UNIDEN CR -2021 Built -in AC /battery power Triple conversion superheterodyne Antenna peaking control 12 channel memory 1 kHz tuning steps High -stability SSB /CW reception Excellent audio fidelity SONY ICF -2002 $219.00 including UPS UNIDEN CRF -2021 $189.00 including UPS GROVE ENTERPRISES 140 Dog Branch Road, Brasstown, NC 28902 704 -837 -9200