• Year
  • 1931 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 48444
    • Brand: Airline or Air-Line

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / -22.5 & -4.5 & 6 & 67 & 135 Volt
  • Loudspeaker
  • -Loudspeaker incorporated, but system not known.
  • from Radiomuseum.org
  • Model: 923 Radiola 21,22 - Montgomery Ward & Co. Wards,
  • Notes
  • Table model (Radiola 21) or console model (Radiola 22).
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)
  • Mentioned in
  • Rider's 2-10, 2-11

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