• Country
• Germany

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

• Year
• 1931

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 140405

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles). / Ø 26 cm = 10.2 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Lautsprecher Form V - Hegra, Hekra, Marke, Hermann

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 425 x 370 x 165 mm / 16.7 x 14.6 x 6.5 inch

• Notes
• 4-poliges Ankersystem, Magnet-Dynamik

• Price in first year of sale
• 54.00 RM

• Source of data
• Katalog Radio-Zentrale Prohaska 1930/31 (dick)

• Author
• Model page created by Rudolf Kernchen. 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