unknown
Oy Helvar; Helsinki
- Country
- Finland
- Manufacturer / Brand
- Oy Helvar; Helsinki
- Year
- 1955 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 121028
- Number of Transistors
- 7
- Semiconductors
- Main principle
- Superheterodyne (common); 3 AF stage(s)
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries / 6 x 1,5 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
- Material
- Bakelite or Plastics (type unknown)
- from Radiomuseum.org
- Model: unknown - Oy Helvar; Helsinki
- Shape
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 265 x 190 x 90 mm / 10.4 x 7.5 x 3.5 inch
- Notes
- Loudspeaker 9 x 13 cm. Transistor example OC44 OC45 OC45 OC71 OC71 and PA ?
- Net weight (2.2 lb = 1 kg)
- 2.2 kg / 4 lb 13.5 oz (4.846 lb)
- Source of data
- - - Data from my own collection
- Author
- Model page created by Eero Ukkola. See "Data change" for further contributors.
- Other Models
-
Here you find 254 models, 214 with images and 93 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Oy Helvar; Helsinki
Collections
The model unknown is part of the collections of the following members.