• 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
• 161199

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

• Number of Tubes
• 5

• Valves / Tubes
• 1R5 1T4 1S5 3Q4 117Z3

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 117V AC/DC / 90 & 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 0.2 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 4-C-1 Air Chief "The Binocular" Code 291-7-564 - Firestone Tire & Rubber Co.

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes
• Built in loop antenna.

• Net weight (2.2 lb = 1 kg)
• 2.3 kg / 5 lb 1.1 oz (5.066 lb)

• Circuit diagram reference
• Rider's Perpetual, Volume 23 (last), covering up to 1954

• Literature/Schematics (1)
• Riders 23-15 to 23-20

• Author
• Model page created by Rudy Vande Loo. See "Data change" for further contributors.

• Other Models

• Here you find 479 models, 312 with images and 436 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)