• Year
  • 1935/1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 23104
    • alternative name: Telefony Microfona

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF with diode detector; ZF/IF 1 kHz; 2 AF stage(s)
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 110-240 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Superdual MK305-II - Microphona Mikrofona, Bratri
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Notes
  • Front Bakelit. 45W Verbrauch. Gegenüber MK305-I kleine Schaltungsänderungen - so kein Widerstand (1,5K) vor dem Steuergitter der Endröhre. MK306 = mit Türchen, sonst gleich MK305.
  • External source of data
  • Erb

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

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