- Country
 - United States of America (USA)
 
- Manufacturer / Brand
 - Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)
 
- Year
 - 1955 ?
 
- Category
 - Car Radio, perhaps also + sound player/recorder
 
- Radiomuseum.org ID
 - 101519
 
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
 - 8
 
- Main principle
 - Superheterodyne (common); ZF/IF 455 kHz
 
- Tuned circuits
 - 7 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
 - Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
 
- Material
 - Metal case
 
- from Radiomuseum.org
 - Model: 4-B-69 - Firestone Tire & Rubber Co.
 
- Shape
 - Chassis only or for «building in»
 
- Circuit diagram reference
 - Photofact Folder, Howard W. SAMS
 
- Author
 - Model page created by Peter Hoddow. See "Data change" for further contributors.
 
- Other Models
 - 
        
Here you find 491 models, 319 with images and 450 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)