• Year
  • 1929
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 37430
    • Brand: Pierce Airo

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • TRF without regeneration; 2 AF stage(s)
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Direct Current supply (DC) / 110-120 Volt
  • Loudspeaker
  • - For headphones or amp.
  • from Radiomuseum.org
  • Model: 273 - DeWald Radio Mfg. Corp.,
  • Notes
  • Push-pull audio amplifier
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

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