• Country
• Germany

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

• Year
• 1927 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 214502

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) generic. / Ø 28 cm = 11 inch

• Material
• Metal case

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

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 280 x 310 x 170 mm / 11 x 12.2 x 6.7 inch

• Notes
• 1620 Ohm. The base size: 130 x 170 x 30 mm.

• Net weight (2.2 lb = 1 kg)
• 0.650 kg / 1 lb 6.9 oz (1.432 lb)

• Author
• Model page created by Sándor Selyem-Tóth. 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