• Year
  • 1929–1931
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 4845
    • alternative name: Telephon-Fabrik, AG vorm. J. Berliner

 Technical Specifications

  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: DL20 - Tefag; Telephon
  • Notes
  • Edyn-LS, offen, bis 4 Watt
  • Price in first year of sale
  • 74.00 RM

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