• Country
• Germany

• Manufacturer / Brand
• Krüger, Rudolph, Telegraphen-Bauanstalt (ERKA); Berlin

• Year
• 1924 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 144273

• 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.

• Other Models

• Here you find 4 models, 4 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Krüger, Rudolph, Telegraphen-Bauanstalt (ERKA); Berlin