• Country
• United States of America (USA)

• Manufacturer / Brand
• Firestone Tire & Rubber Co. (Air Chief & Roamer, Airchief); Akron (OH)

• Year
• 1939/1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 40749

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 5

• Valves / Tubes
• 6SA7 6SK7 6SQ7 6F6G 5Y4G

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: S7403-3 Air Chief - Firestone Tire & Rubber Co.

• Notes
• Top handle.

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios (7th Edition)

• Circuit diagram reference
• Rider's Perpetual, Volume 11 = ca. 1940 and before

• Mentioned in
• Machine Age to Jet Age III

• Literature/Schematics (1)
• Riders 11-2

• Other Models

• Here you find 473 models, 310 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)