- Country
- United States of America (USA)
- Manufacturer / Brand
- Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)
- Year
- 1947
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 40618
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- Superhet with RF-stage; ZF/IF 455 kHz
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Alternating Current supply (AC) / 117 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6 inch = 15.2 cm
- from Radiomuseum.org
- Model: 4-A-21X - Firestone Tire & Rubber Co.
- Notes
- Push Button Abstimmung
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 15 = 1947 and before
- 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)
Collections
The model 4-A-21X is part of the collections of the following members.