• Year
  • 1922
  • Category
  • Detector-Radio (Crystal or diode, without tubes/transistors)
  • Radiomuseum.org ID
  • 66897

 Technical Specifications

  • Main principle
  • Crystal or Solid State Detector
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - For headphones or amp.
  • from Radiomuseum.org
  • Model: 178 - Wireless Improvement Co.; New
  • Notes
  • One dial (primary tuning control knob)
  • External source of data
  • Ernst Erb

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