radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

S7425-4

S7425-4 ; Firestone Tire & (ID = 726157) Radio
S7425-4 ; Firestone Tire & (ID = 1089335) Radio S7425-4 ; Firestone Tire & (ID = 1092777) Radio
S7425-4 ; Firestone Tire & (ID = 2005442) Radio
Use red slider bar for more.
S7425-4 ; Firestone Tire & (ID = 1089335) Radio
Firestone Tire &: S7425-4 [Radio] ID = 1089335 933x698
Select picture or schematic to display from thumbnails on the right and click for download.
For model S7425-4, Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH):
USA Firestone S7425-4 4820.jpg
 
Country:  United States of America (USA)
Manufacturer / Brand:  Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)
Year: 1939 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: 6K7G 6J7G 25L6G 25Z6G
Main principle TRF without regeneration; Anode bend detection
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage AC/DC-set / 110-120 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: S7425-4 - Firestone Tire & Rubber Co.
Notes  
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 10 = 1939 and before
Literature/Schematics (1) Riders 10-4


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.




  
rmXorg