• Year
  • 1935 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 130326

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Number of Transistors
  • Semiconductors
  • K55B
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • AC/DC-set / 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: D-5 - Automatic Radio Mfg. Co.;
  • Notes
  • Ballast tube K55B.
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before

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