7422-4 Air Chief Ch= R-305

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

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  • Year
  • 1937/1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 133669

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • Alternating Current supply (AC) / 110-115 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 7422-4 Air Chief Ch= R-305 - Firestone Tire & Rubber Co.
  • Shape
  • Tablemodel, low profile (big size).
  • Notes
  • In the second year of non automobile radios Firestone offered a line of radio models, seven table top models (Air Chief 7422-3, 7422-4, 7423-1, 7423-2, 7424-1, 7424-2 and 7424-3) and their first three console radios (7423-3, 7425-1 and an 11-tube console with dial-matic station selection.

    The Air Chief 7244-4 with chassis R-305 is 5-tube AC set. The model R-3051 uses the same chassis. 4 knobs, price was 19.95 $. The add reads "9 tuned circuits" but there are included circuits which influence not directly selectivity/gain. , covering the broadcast band but to the ??? it is a 5 tube AC-DC model, covering American and Police bands. Price was 12.95 $.
  • Price in first year of sale
  • 20.00 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 9 = 1938 and before
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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