• Year
  • 1923 ??
  • Category
  • Detector-Radio (Crystal or diode, without tubes/transistors)
  • Radiomuseum.org ID
  • 77184

 Technical Specifications

  • Main principle
  • Crystal or Solid State Detector
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - For headphones or amp.
  • from Radiomuseum.org
  • Model: Crystal Set - Underdown & Co., Middlesex

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