• Country
• United States of America (USA)

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

• Year
• 1963

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 146433

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

• Number of Tubes
• 4

• Valves / Tubes
• 12AU6 12AV6 50C5 35W4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 110 - 120 Volt

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

• from Radiomuseum.org
• Model: 4-A-217 Code 438-1-45-36 - Firestone Tire & Rubber Co.

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

• Notes
• The Firestone Model 4-A-217 is an AC/DC Operated 4 Tube AM Receiver.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 9-63, Set 655, Folder 9)

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 480 models, 313 with images and 438 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)