- Country
- United States of America (USA)
- Manufacturer / Brand
- Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)
- Year
- 1938
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 40780
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- 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 7 inch = 17.8 cm
- from Radiomuseum.org
- Model: S7425-3 - Firestone Tire & Rubber Co.
- Shape
- Tablemodel with Push Buttons.
- Notes
- Farm radio. 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 11-19, 20, 21
- Other Models
-
Here you find 472 models, 309 with images and 430 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)