• Year
  • 1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 52360

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF without regeneration; 2 AF stage(s)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 117 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: 428 - R.K. Radio Laboratories, Inc.
  • Notes
  • BC (550 - 1750 kHz) band.

  • Circuit diagram reference
  • Rider's Perpetual, Volume 6 = 1935 and before
  • Mentioned in
  • Riders 6 RK 6-1
  • Author
  • Model page created by Peter Rutishauser. See "Data change" for further contributors.

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