• Country
• United States of America (USA)

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

• Year
• 1956

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 146257

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

• Number of Tubes
• 5

• Valves / Tubes
• 1U4 1L6 1U4 1U5 3V4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Line / Batteries (any type) / AC/DC 110-120/ 90 & 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• from Radiomuseum.org
• Model: 4-C-30 Code 297-6-516 - Firestone Tire & Rubber Co.

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes

• Selenium Rectifier.
  The Firestone Model 4-C-30 is a Three Power Portable 5 Tube 2 Band AM Receiver.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 1-57, Set 344, Folder 6)

• 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)