• Year
  • 1923 ?
  • Category
  • Detector-Radio (Crystal or diode, without tubes/transistors)
  • Radiomuseum.org ID
  • 76847

 Technical Specifications

  • Main principle
  • Crystal or Solid State Detector
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Belltone Crystal Set - Brady, T.P. & Co.; Newcastle-
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Belltone Crystal Set, Bells Radio & Electr. Co. Ltd., Newcastle-on-Tyne

    GPO No.4991;

    Possibly uses a Belltone Crystal from Bell Laboratories, Cardiff.

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