• Year
  • 1943/1944
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 12078

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 468 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 110-250 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 644 - Hofrela,
  • Dimensions (WHD)
  • 515 x 300 x 245 mm / 20.3 x 11.8 x 9.6 inch
  • Price in first year of sale
  • 495.00 SFr
  • External source of data
  • E. Erb 3-907007-36-0
  • Source of data
  • Radiokatalog Band 2, Ernst Erb
  • Circuit diagram reference
  • Thali-Schemasammlung und Tungsram-Röhrenbestückung.
  • Picture reference
  • Das Modell ist im «Radiokatalog» (Erb) abgebildet.

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The model is part of the collections of the following members.

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