• Country
• Germany

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

• Year
• 1934 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 240125

• Wave bands
• - without

• Power type and voltage
• Direct Current supply (DC)

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Lautsprecher A20 [Gleichstrom] - Hegra, Hekra, Marke, Hermann

• Shape
• Tablemodel, with any shape - general.

• Notes

• Siehe auch Modelle MD3, A12 und PMD im gleichen Gehäuse.

• Price in first year of sale
• 39.00 RM

• Mentioned in
• Katalog Radio-Schnorr 1934

• Author
• Model page created by João-Afonso Santos. 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