• Country
• Italy

• Manufacturer / Brand
• Unda Radio; Como, Dobbiaco

• Year
• 1946/1947 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 101101

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

• Number of Tubes
• 6

• Valves / Tubes
• ECH4 or E1R 6K7G 6Q7G 6V6G 6E5 5Y3G

• Main principle
• Superheterodyne (common); ZF/IF 450 kHz

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 100 - 280 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 24 cm = 9.4 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Quadriunda R64/1 - Unda Radio; Como, Dobbiaco

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 610 x 350 x 340 mm / 24 x 13.8 x 13.4 inch

• Notes

• Onde Medie da 192 a 582 m. Onde Corte 3 gamme da 33,7 a 56,5 m. da 18 a 33,7 m. da 13,9 a 18 m.
  Regolatore di tono e commutatore "Parola Musica Fono".

• Source of data
• Guida Pratica Antique Radio III (2000)

• Literature/Schematics (1)
• Schemi di apparecchi radio ( Ravalico 1953 ) (pag. 344)

• Literature/Schematics (2)
• -- Schematic

• Author
• Model page created by Alessandro De Poi. See "Data change" for further contributors.

• Other Models

• Here you find 242 models, 160 with images and 177 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unda Radio; Como, Dobbiaco