• Country
• Germany

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

• Year
• 1939/1940

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 71929

• • Brand: Beteco

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Beteco 4975 - Strumpf GmbH, Hermann Beteco;

• Dimensions (WHD)
• 440 x 370 x 190 mm / 17.3 x 14.6 x 7.5 inch

• Notes
• Anpassungswerte: 4000/7000 Ohm; Maximalbelastbarkeit: 4,5 W.

• Net weight (2.2 lb = 1 kg)
• 5.2 kg / 11 lb 7.3 oz (11.454 lb)

• Price in first year of sale
• 50.00 RM

• Source of data
• Handbuch WDRG 1939 / Radiokatalog Band 2, Ernst Erb

• Author
• Model page created by Michael Seiffert. 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