• Year
  • 1925 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 201565

 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: Supreme - BTH B.T.H., British Thomson-
  • Shape
  • Miscellaneous shapes - described under notes.
  • Notes
  • BTH Supreme BBC Headphones;
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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