• Country
• Germany

• Manufacturer / Brand
• Isophon, E. Fritz & Co. GmbH.; Berlin

• Year
• 1934 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 367787

• • Brand: Isophon

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (free mooving - only possible past 1931).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Freischwinger Fr-303 - Isophon, E. Fritz & Co. GmbH.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 380 x 355 x 180 mm / 15 x 14 x 7.1 inch

• Notes

• Gleichstrom-Widerstand 2 kΩ

• Net weight (2.2 lb = 1 kg)
• 3.2 kg / 7 lb 0.8 oz (7.048 lb)

• Author
• Model page created by Andreas Sommerer. See "Data change" for further contributors.

• Other Models

• Here you find 269 models, 258 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Isophon, E. Fritz & Co. GmbH.; Berlin