• Year
  • 1954 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 221792

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 45 & 1,5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.5 inch = 6.4 cm
  • Power out
  • 0.4 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Parrot KR-4S2 - Koyo Denki Co. Ltd.; Kodaira,
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Notes
  • Koyo AM Portable Tube Radio Model Parrot KR-4S1 has the same schematic as this model KR-4S2.
    Tuning Range 540 - 1600 KC, Earphones jack. We have created this model only with data of the schematic and are not yet sure about the case of it, but might be most similar. We are not sure about the name Parrot.

  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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