• Year
  • 1929
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 34563
    • Brand: Counterphase

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Valves / Tubes
  • Main principle
  • TRF without regeneration; Neutrodyne
  • Power type and voltage
  • Alternating Current supply (AC)
  • from Radiomuseum.org
  • Model: 81A - Bremer-Tully Mfg. Co.; Chicago
  • Notes
  • One dial (primary tuning control knob)
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

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