• Country
• Germany

• Manufacturer / Brand
• Hegra, Hekra, (Marke), Hermann Grau, Berlin-Friedrichshagen - Vorkrieg

• Year
• 1928–1931

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 182900

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles).

• Material
• Metal case

• from Radiomuseum.org
• Model: Ankersystem Form C - Hegra, Hekra, Marke, Hermann

• Shape
• Chassis only or for «building in»

• Notes
• 4-poliges, regulierbares Ankersystem.

• Price in first year of sale
• 18.00 RM

• Mentioned in
• A. Stark, Preisliste 1929

• Literature/Schematics (1)
• Kahle & Cless, Leipzig, Katalog 1931

• Author
• Model page created by Museum Roggenhofer. See "Data change" for further contributors.

• Other Models

• Here you find 117 models, 99 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hegra, Hekra, (Marke), Hermann Grau, Berlin-Friedrichshagen - Vorkrieg