R56/4 valvole octal
Unda Radio; Como, Dobbiaco
- Country
- Italy
- Manufacturer / Brand
- Unda Radio; Como, Dobbiaco
- Year
- 1951 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 101335
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- Superheterodyne (common); ZF/IF 450 kHz
- Tuned circuits
- 6 AM circuit(s)
- 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 22 cm = 8.7 inch
- Power out
- 4 W (unknown quality)
- Material
- Wooden case
- from Radiomuseum.org
- Model: R56/4 [valvole octal] - Unda Radio; Como, Dobbiaco
- Shape
- Tablemodel, low profile (big size).
- Notes
-
Onde Medie e 5 gamme di onde Corte da 105 a 16 metri.
- Literature/Schematics (1)
- Schemi di apparecchi radio ( Ravalico 1953 ) (pag. 348)
- Literature/Schematics (2)
- -- Schematic
- 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
Collections
The model is part of the collections of the following members.
Forum contributions about this model: Unda Radio; Como,: R56/4
Threads: 1 | Posts: 2
Nel mio apparecchio UNDA R56/4, sono montate le valvole 6EB6 - 6AB6 - 6AT6 - 6+AQ5 - 6X5, come indicate anche nella targa sul retro telaio, e non le valvole Octal, indicate nella scheda. Sarebbe interessante conoscere se la radio messa sulla scheda sia effettivamente una R56/a ed abbia le valvole Octal. In ntal caso il ricevitore avrebbe due versioni con valvole differenti. Allego una foto del retro del mio apparecchio. Saluti a tutti Antonio
Attachments
- unda (128 KB)
Antonio Maida, 29.Aug.16