• Year
  • 1927/1928
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 4873
    • alternative name: Telephon-Fabrik, AG vorm. J. Berliner

 Technical Specifications

  • Wave bands
  • - without
  • Loudspeaker
  • Magnetic loudspeaker (reed) generic.
  • from Radiomuseum.org
  • Model: Doppel-Conus 1928 - Tefag; Telephon
  • Notes
  • Mit zwei verschiedenen Memranen.
    Lautsprecher für Supertefag.
  • Price in first year of sale
  • 175.00 RM
  • Mentioned in
  • ETZ 1928, Heft 9

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