Undine 4 W204L
Nora, Aron, Heliowatt; Berlin
- Country
- Germany
- Manufacturer / Brand
- Nora, Aron, Heliowatt; Berlin
- Year
- 1935/1936
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 7937
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 3
- Main principle
- TRF with regeneration; 1 AF stage(s)
- Tuned circuits
- 1 AM circuit(s)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Alternating Current supply (AC) / 110; 125; 150; 220; 240 Volt
- Loudspeaker
- Magnetic loudspeaker (reed) of high quality (free mooving - only possible past 1931).
- Material
- Wooden case
- from Radiomuseum.org
- Model: Undine 4 W204L - Nora, Aron, Heliowatt; Berlin
- Shape
- Tablemodel, high profile (upright - NOT Cathedral nor decorative).
- Dimensions (WHD)
- 370 x 385 x 245 mm / 14.6 x 15.2 x 9.6 inch
- Notes
- Eisenkernspulen
- Net weight (2.2 lb = 1 kg)
- 10 kg / 22 lb 0.4 oz (22.026 lb)
- Price in first year of sale
- 145.00 RM
- Source of data
- Katalog Radio-Zentrale Alex v. Prohaska 1935/1936 / Radiokatalog Band 1, Ernst Erb
- Circuit diagram reference
- Lange+Schenk+FS-Röhrenbestückung
- Mentioned in
- Fortschritte der Funktechnik und ihrer Grenzgebiete (8 Bände) (1)
- Literature/Schematics (1)
- -- Schematic (OTO-Schaltungen)
- Other Models
-
Here you find 633 models, 555 with images and 342 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Nora, Aron, Heliowatt; Berlin
Collections
The model Undine 4 is part of the collections of the following members.