• Country
• United States of America (USA)

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

• Year
• 1956 ?

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 137421

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

• Number of Tubes
• 3

• Valves / Tubes
• 12AU6 50C5 35W4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Rec.Player+Audio.Amp+LS

• Power type and voltage
• Alternating Current supply (AC) / 105 - 125 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• from Radiomuseum.org
• Model: 4-A-131 Code 1-5-3A7 - Firestone Tire & Rubber Co.

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes
• The Firestone Modell 4-A-131 is a AC Operated Phono Amplifier with 3 Speed Automatic Record Changer.
  4" x 6" PM elliptical speaker.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 9-56, Set 329, Folder 6)

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

• 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)