• Country
• Germany

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

• Year
• 1928/1929

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 73357

• Power type and voltage
• Line / Batteries (any type) / 4-6;110; 220 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Kabinett-Lautsprecher Dynamik B - Hegra, Hekra, Marke, Hermann

• Dimensions (WHD)
• 320 x 340 x 260 mm / 12.6 x 13.4 x 10.2 inch

• Notes
• Enthält das LS-System Dynamik A. Erregung wahlweise 4-6V/0,6A oder 110/220V=/50mA.

• Price in first year of sale
• 98.00 RM

• External source of data
• Radio-Diehr 1928/1929

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Author
• Model page created by Wolfgang Eckardt. See "Data change" for further contributors.

• Other Models

• Here you find 119 models, 109 with images and 5 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