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Kopfhörer (Headphone) Piezokristall

Kopfhörer Piezokristall; Unknown - CUSTOM (ID = 158392) Speaker-P
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Kopfhörer Piezokristall; Unknown - CUSTOM (ID = 158392) Speaker-P
Unknown - CUSTOM: Kopfhörer Piezokristall [Speaker-P] ID = 158392 646x700
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For model Kopfhörer (Headphone) Piezokristall, Unknown - CUSTOM BUILT: Soviet Union:
Membrane-Rückseite mit Piezo-Kristall zusätzlich im Bild
Country:  Soviet Union
Manufacturer / Brand:  Unknown - CUSTOM BUILT: Soviet Union
Year: 1958 ?? Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker - Is a Headphone or Earphone
Power out
from Model: Kopfhörer Piezokristall - Unknown - CUSTOM BUILT: Soviet
Shape Miscellaneous shapes - described under notes.
Notes Doppelkopfhörer, Kapseln parallel geschaltet, Alufolie als Membrane mit Piezo-Kristall.
Net weight (2.2 lb = 1 kg) 0.2 kg / 0 lb 7 oz (0.441 lb)
Mentioned in -- Collector info (Sammler)

Model page created by Wolfgang Eckardt. See "Data change" for further contributors.

All listed radios etc. from Unknown - CUSTOM BUILT: Soviet Union
Here you find 188 models, 171 with images and 40 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.