• Year
  • 1924 ?
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 144273

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - Is a Headphone or Earphone
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Kopf-Fernhörer Erka - Krüger, Rudolph, Telegraphen-
  • Mentioned in
  • Kappelmayer, Radio im Heim; 4.Aufl. Anzeige
  • Author
  • Model page created by Wolfgang Eckardt. See "Data change" for further contributors.

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