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S7407-6

S7407-6 ; Firestone Tire & (ID = 725403) Car Radio
 
S7407-6 ; Firestone Tire & (ID = 725404) Car Radio
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S7407-6 ; Firestone Tire & (ID = 725403) Car Radio
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Country:  United States of America (USA)
Manufacturer / Brand:  Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)
Year: 1940 ? Category: Car Radio, perhaps also + sound player/recorder
Valves / Tubes 6: 6K7 6A8 6K7 6Q7 6K6G 6X5G
Main principle Superhet with RF-stage; ZF/IF 465 kHz
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6 inch = 15.2 cm
Power out
from Radiomuseum.org Model: S7407-6 - Firestone Tire & Rubber Co.
Material Metal case
Notes Vibrator for +B.
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 11 = ca. 1940 and before
Literature/Schematics (1) Riders 11-15, 16


All listed radios etc. from Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)
Here you find 419 models, 274 with images and 381 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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