• Country
• Italy

• Manufacturer / Brand
• Unda Radio; Como, Dobbiaco

• Year
• 1934

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 316916

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

• Number of Tubes
• 7

• Valves / Tubes
• 2A7 58 58 Wunderlich 2A5 2A5 80

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

• Wave bands
• Broadcast, Long Wave and 2 x Short Wave.

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Power out
• 7 W (undistorted)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Triunda 7 [early] - Unda Radio; Como, Dobbiaco

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Notes

• Onde Lunghe da 750 a 2.000 m; Medie da 200 a 600 m; Corte da 27 a 80 m e da 13,5 a 30 m.
  Indicatore ottico di sintonia. Controllo di tono.
  Regolatore di sensibilità operante sul catodo della prima 78.
  
  Esiste una variante della Triunda 7 con differente elenco valvole.

• Mentioned in
• -- Original-techn. papers. (L'antenna, n.1, gennaio 1935)

• Literature/Schematics (1)
• -- Schematic (Il Radio Libro D.E. Ravalico Hoepli editore 1935.)

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

• Other Models

• Here you find 243 models, 164 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