• Country
• Germany

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

• Year
• 1939/1940

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 71928

• • 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 4425 - Strumpf GmbH, Hermann Beteco;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 410 x 350 x 190 mm / 16.1 x 13.8 x 7.5 inch

• Notes
• Anpassungswerte: 4000/7000 Ohm. Maximalbelastbarkeit: 3,5 W.

• Net weight (2.2 lb = 1 kg)
• 4.4 kg / 9 lb 11.1 oz (9.692 lb)

• Price in first year of sale
• 44.00 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