RI Model No.1 GPO No. 122

Radio Instruments Ltd (RI)., London

  • Year
  • 1922
  • Category
  • Detector-Radio (Crystal or diode, without tubes/transistors)
  • Radiomuseum.org ID
  • 76096

 Technical Specifications

  • Main principle
  • Crystal or Solid State Detector
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: RI Model No.1 [GPO No. 122] - Radio Instruments Ltd RI.,
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 5.5 x 7.25 x 5.5 inch / 140 x 184 x 140 mm
  • Notes
  • BBC/PMG stamp; GPO No.122;

    This set shares the same GPO No. 122 approval as the RI X.L.A. crystal set.

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