• Year
  • 1929 ?
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 115419
    • Brand: WRH

 Technical Specifications

  • Wave bands
  • - without
  • Loudspeaker
  • Magnetic loudspeaker (reed) of high quality (4 magnet poles).
  • from Radiomuseum.org
  • Model: Apia - Richter, Wilhelm; Hannover

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