- Country
- Germany
- Manufacturer / Brand
- Grassmann, Peter, RFW, Radio-Funk-Werkstätten; vor 1945, Berlin & Neuhaldensleben
- Year
- 1933–1940
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 75274
Aus Reyersbach AG, Katalog 482, Okt. 1933.
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: Helios Permanent 48 - Grassmann, Peter, RFW, Radio-
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 400 x 370 x 180 mm / 15.7 x 14.6 x 7.1 inch
- Notes
-
Tischlautsprecher im Holzgehäuse, eingebauter Universalanpassungstrafo mit 3 Abgiffen für 500/4000/15000 Ω; Spulenimpedanz 3,5 Ω; Kobaltstahl-Magnet. Maximalbelastbarkeit: 4 W.
- Net weight (2.2 lb = 1 kg)
- 4 kg / 8 lb 13 oz (8.811 lb)
- Price in first year of sale
- 48.00 RM
- Source of data
- HandB.d.d.Rundfunk-Handels 1936/37 / Radiokatalog Band 2, Ernst Erb
- Mentioned in
- Katalog Ch.Mank, Leipzig
- Literature/Schematics (1)
- Reyersbach AG, Katalog 482, Okt. 1933
- Author
- Model page created by Michael Seiffert. See "Data change" for further contributors.
- Other Models
-
Here you find 110 models, 75 with images and 30 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Grassmann, Peter, RFW, Radio-Funk-Werkstätten; vor 1945, Berlin & Neuhaldensleben
Collections
The model Helios Permanent is part of the collections of the following members.