Dynamischer Lautsprecher A9
Hegra, Hekra, (Marke), Hermann Grau, Berlin-Friedrichshagen - Vorkrieg
- Country
- Germany
- Manufacturer / Brand
- Hegra, Hekra, (Marke), Hermann Grau, Berlin-Friedrichshagen - Vorkrieg
- Year
- 1931/1932
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 359003
Katalog Radio-Zentrale Prohaska 1931/32 S.75
Katalog Radio-Zentrale Prohaska 1931/32 S.75
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Material
- Metal case
- from Radiomuseum.org
- Model: Dynamischer Lautsprecher A9 - Hegra, Hekra, Marke, Hermann
- Shape
- Chassis only or for «building in»
- Notes
-
Hegra dynamischer Lautsprecher A9, als Chassis zum Einbau. Mit hochohmiger Schwingspule, unterteilt für verschiedene Endröhren. Membrandurchmesser 31 cm.
Verwendet im Hegra-Gehäuselautsprecher B9
- Price in first year of sale
- 45.00 RM
- Mentioned in
- Katalog Radio-Zentrale Prohaska 1931/32 (S.75 Nr. 501)
- Author
- Model page created by Bernhard Nagel. See "Data change" for further contributors.
- Other Models
-
Here you find 119 models, 109 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Hegra, Hekra, (Marke), Hermann Grau, Berlin-Friedrichshagen - Vorkrieg