• Country
• Italy

• Manufacturer / Brand
• Unda Radio; Como, Dobbiaco

• 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.

• Number of Tubes
• 5

• Valves / Tubes
• 6A8G 6K7 6Q7G 6V6G 6X5GT

• 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 (1)
• Schemi di apparecchi radio ( Ravalico 1953 ) (pag. 337; 349)

• 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.

• Other Models

• Here you find 243 models, 162 with images and 179 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unda Radio; Como, Dobbiaco