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Permanent-Magnet-Dynamik Chassis

Country:  Germany
Manufacturer / Brand:  Hegra, Hekra, (Marke), Hermann Grau, Berlin-Friedrichshagen - Vorkrieg
Year: 1931/1932 Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Model: Permanent-Magnet-Dynamik [Chassis] - Hegra, Hekra, Marke, Hermann
Material Metal case
Shape Chassis only or for «building in»
Notes verwendet im Permanent-Magnet-Dynamik Gehäuselautsprecher.
Price in first year of sale 45.00 RM
Literature/Schematics (1) Katalog Radio-Zentrale Prohaska 1928 (1931/32, Nr.492)

Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

All listed radios etc. from Hegra, Hekra, (Marke), Hermann Grau, Berlin-Friedrichshagen - Vorkrieg
Here you find 107 models, 92 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.