• Year
  • 1949
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 247026

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 471 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • AC/DC-set / 220 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 4.5 W (unknown quality)
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Dwergbuis Super U-49A - Amroh NV Radio Bulletin
  • Shape
  • Chassis only or for «building in»
  • Notes
  • This model is a regular super heterodyne for "universal" 220 V AC and DC power supply. Two versions were published: the "original" January 1949 version has separate coils in the mixer stage for reception of the broadcast and short wave bands. The second version, published February 1950, uses the coil-unit 236 adding the long wave band. Diagrams of both versions are available.

  • Author
  • Model page created by Rob Majoor. See "Data change" for further contributors.

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