• Country
• Germany

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

• Year
• 1928

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 194501

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles). / Ø 25 cm = 9.8 inch

• Material
• Metal case

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

• Shape
• Chassis only or for «building in»

• Notes
• Hegra magnetischer Lautsprecher Chassis Form B;
  Korb aus Aluminiumguss, 4-poliges System mit Hufeisenmagnet und aussenliegender Schubstange zur Membranankopplung.

• Literature/Schematics (1)
• Rundfunk Edition Band 3 RE 01124

• Author
• Model page created by Torsten Stein. 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