• Country
• Germany

• Manufacturer / Brand
• ROKA, Robert Karst; Berlin

• Year
• 1929 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 87705

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - Is a Headphone or Earphone

• Material
• Metal case

• from Radiomuseum.org
• Model: Kopfhörer - ROKA, Robert Karst; Berlin

• Notes
• Doppelkopfhörer 2× 2000 Ohm, Doppelstahlband mit Leder bezogen, auffällige Ähnlichkeit mit "Omega-Kopfhörer".

• Mentioned in
• -- Collector info (Sammler)

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

• Other Models

• Here you find 25 models, 24 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from ROKA, Robert Karst; Berlin