• Year
  • 1950
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 223747

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 468 kHz
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 150; 220 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Power out
  • 1.5 W (undistorted)
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: 504 [AC, 4 Loktal tubes] - Elprom KB Kliment Voroshilov
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Notes
  • Wave Bands:
    MW: 520-1600 kHz
    LW: 150-400 kHz
    SW: 5.8-18 MHz
  • Mentioned in
  • book "Bulgarian Radio Receivers"
  • Author
  • Model page created by Simeon Nikolov. See "Data change" for further contributors.

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