• Country
• Germany

• Manufacturer / Brand
• Strumpf GmbH, Hermann (Beteco); Berlin

• Year
• 1934

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 119498

• • Brand: Beteco

• 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: Beteco 77DG - Strumpf GmbH, Hermann Beteco;

• Shape
• Tablemodel, with any shape - general.

• Net weight (2.2 lb = 1 kg)
• 3.4 kg / 7 lb 7.8 oz (7.489 lb)

• Price in first year of sale
• 39.00 RM

• Mentioned in
• -- Original prospect or advert

• Author
• Model page created by Jürgen Bauch. See "Data change" for further contributors.

• Other Models

• Here you find 95 models, 79 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Strumpf GmbH, Hermann (Beteco); Berlin