• Country
• Soviet Union

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: Soviet Union

• Year
• 1958 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 87713

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - Is a Headphone or Earphone

• from Radiomuseum.org
• 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)

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

• Other Models

• Here you find 172 models, 158 with images and 37 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: Soviet Union