• Country
• Germany

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

• Year
• 1932/1933

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 156295

• Wave bands
• - without

• Power type and voltage
• Direct Current supply (DC) / 110-220 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 34 cm = 13.4 inch

• Material
• Metal case

• from Radiomuseum.org
• Model: Dynamik-Lautsprecher-Chassis A 6 [Gleichstrom] - Hegra, Hekra, Marke, Hermann

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 340 x 350 x 235 mm / 13.4 x 13.8 x 9.3 inch

• Notes
• Für große Leistung. Für 110 oder 220 V Gleichstrom.

• Price in first year of sale
• 117.00 RM

• Literature/Schematics (1)
• Katalog Radio-Zentrale Prohaska 1928 (1932/33, Nr.A611)

• Author
• Model page created by Konrad Birkner † 12.08.2014. 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