• Country
• Germany

• Manufacturer / Brand
• ROKA, Robert Karst; Berlin

• Year
• 1957–1959

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 109904

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 2270A - ROKA, Robert Karst; Berlin

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Handmikrofon mit 2-m langer Zuleitung und Kristallkapsel. Polystrol-Gehäuse in Elfenbein-Farbe.

• Mentioned in
• Rimpex Grossvertrieb, Gräte und Zubehör

• Literature/Schematics (1)
• Funk-Technik (FT) (9/1957, S. 304 / Werbung)

• Author
• Model page created by Peter Lokowand. See "Data change" for further contributors.

• Other Models

• Here you find 24 models, 23 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