• Year
  • 1947 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 101094

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 450 kHz
  • 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
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Power out
  • 3.5 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: R53/4 - Unda Radio; Como, Dobbiaco
  • Shape
  • Tablemodel, low profile (big size).
  • Notes
  • Gamme d'onda: medie, corte, cortissime.
    Controllo di tono. Ingresso per giradischi.
    Sintonia ad induttori variabili.

    Autotrasformatore: Telaio collegato alla rete elettrica. Non tutti i casi sono dichiarati poichè spesso chi propone il modello non lo può sapere.

  • Literature/Schematics (2)
  • Il Radio Libro D.E. Ravalico 9a edizione 1947 - Note di servizio
  • Author
  • Model page created by Alessandro De Poi. See "Data change" for further contributors.

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