• Year
  • 1956
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 227704

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

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 220 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 1.7 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Drie maal twee - Amroh NV Radio Bulletin
  • Shape
  • Chassis only or for «building in»
  • Notes
  • The model name "Drie maal twee" (= three times two) is derived from the fact that this receiver is equipped with 2 tubes, 2 bands and 2 tuned circuits.

    Special in this model is the way the A.F. tube gets separate negative grid voltages for the triode and penthode parts. Reason is that the tube has one cathode.

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

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