• Year
  • 1958/1959
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 177143

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 220 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Hongxing 红星 Red Star 504-4 - Nanjing 南京无线电厂 Nanjing Radio
  • Shape
  • Tablemodel, low profile (big size).
  • Notes
  • The Hongxing 红星 Red Star modela 504-4, 504-5 and 504-6 share the same documentation on page 188ff, same schematic but different cabinets. Schematic is very similar to the ones with US tubes, also with a full mains transformer. Russian tube types in allglass technique, klick the tubes and you have the US or Europe equivalent. The wave bands are broadcast 520 - 1600 kHz, SW 3.9 - 8 and 9 - 16 MHz.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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