Neutrodyne P4a (Quadruplex) Typ1
Nora, Aron, Heliowatt; Berlin
- Country
- Germany
- Manufacturer / Brand
- Nora, Aron, Heliowatt; Berlin
- Year
- 1927/1928
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 113776
- Number of Tubes
- 3
- Main principle
- TRF with regeneration; Neutrodyne
- Tuned circuits
- 2 AM circuit(s)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Wooden case
- from Radiomuseum.org
- Model: Neutrodyne P4a [Typ1] - Nora, Aron, Heliowatt; Berlin
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Dimensions (WHD)
- 380 x 180 x 220 mm / 15 x 7.1 x 8.7 inch
- Notes
- Erstmodell. Frontplatte glatt. Chassis Hartpapier (Pertinax). Verdrahtung (keine genieteten Blechbänder). Der Drehko-Rotor des zweiten Kreises wird mitgezogen nach einem gewissen Totbereich. Feinabstimmung durch Verstellung des zweiten Rotors. Die Statoren sind starr verbunden. Antennenbuchsen sind über Litzen zum Chassis geführt.
In Katalogen auch als "Quadruplex Type P4a" bezeichnet. Preis ohne Röhren.
- Price in first year of sale
- 175.00 RM
- Source of data
- - - Data from my own collection
- Mentioned in
- Radio-Diehr, Berlin, 1928/1929
- Literature/Schematics (1)
- Katalog Prohaska 1928/29 (Radio-Katalog 13, Walter Fritz 1928/29)
- Author
- Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.
- Other Models
-
Here you find 633 models, 556 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 Neutrodyne is part of the collections of the following members.