• Country
• Germany

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

• Year
• 1931

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 134308

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles). / Ø 27 cm = 10.6 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Kabinett-Konus-Lautsprecher Form S - Hegra, Hekra, Marke, Hermann

• Dimensions (WHD)
• 400 x 350 x 200 mm / 15.7 x 13.8 x 7.9 inch

• Notes
• 4-poliges Kraftsystem, Gehäusefront Nussbaum poliert.

• Price in first year of sale
• 54.00 RM

• Source of data
• Katalog Radio-Zentrale Prohaska 1931/32

• Author
• Model page created by a member from SK. 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