• Country
• Germany

• Manufacturer / Brand
• ROKA, Robert Karst; Berlin

• Year
• 1935 ??

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 80475

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: Drehkondensator 500 cm - ROKA, Robert Karst; Berlin

• Dimensions (WHD)
• 38 x 35 x 33 mm / 1.5 x 1.4 x 1.3 inch

• Notes
• Drehkondensator 500 cm (~ 500 pF) mit festem Dielektrikum.

• Source of data
• Radiokatalog Band 2, Ernst Erb

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

• Other Models

• Here you find 26 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