• Country
• United States of America (USA)

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

• Year
• 1960 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 135917

• Number of Transistors
• 7

• Semiconductors
• 2N412 2N410 2N410 2N406 2N406 2N408 2N408

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

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / AA: 1 x 1.5 V (clock) + AA: 4 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Firestone All Transistor 4-C-45 Code 1-9-71/288 - Firestone Tire & Rubber Co.

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Notes
• Battery operated AM receiver with electric clock. SAMS Photofact, date 6-61, set 535, folder 4 features the Firestone models 4-C-45 and 4-C-50 as the same schematic.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 535 folder 4 date 6-61)

• Literature/Schematics (2)
• Photofact TSM Transistor Radio Series SAMS (TSM-11, April 1962, pages 53 - 56)

• Author
• Model page created by Peter Hoddow. 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)