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Jewel 500B

Country:  United States of America (USA)
Manufacturer / Brand:  Jewel Radio Corp.; New York, Long Island City, NY and East Newark, NJ
Year: 1946 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: 14Q7 14A7 or 12B7 14B6 50A5
Main principle Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage AC/DC-set / 117 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4.75 inch = 12.1 cm
Power out
from Model: Jewel 500B - Jewel Radio Corp.; New York,
Notes The SAMS Photofact folder 3/47, 475-14 shows the same schematic for the models 500A, 500B, 500C, 501A, 501B, 501C, 502A, 502B, 502C, 503A, 503B, 503C, 504A, 504B, 504C, 505A, 505B, 505C. The letter suffix tells us the tubes: A = 12SA7 (Converter), 12SK7 (IF Amp.), 12SQ7 (Det.-AVC-AF) and 50L6GT (power output). B = 14Q7, 14A7 or 12B7, 14B6 and 50A5 and C = 12BE6, 12BA6, 12AT6 and 50B5. The last number indicates the cabinet. We can be sure of the model 501, 502 and 504, because they are shown on the Photofact sheet. We are not sure about the 505 "Pin-up" clock radio - but they are listed - without a trace for a clock.
Literature/Schematics (4) Photofact Folder, Howard W. SAMS (Date 3/47, set 475 (= 15), folder 14.)

Model page created by Ernst Erb. See "Data change" for further contributors.

All listed radios etc. from Jewel Radio Corp.; New York, Long Island City, NY and East Newark, NJ
Here you find 103 models, 62 with images and 64 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.