Portable No.707

Siemens Bros.; London

  • Year
  • 1923
  • Category
  • Detector-Radio (Crystal or diode, without tubes/transistors)
  • Radiomuseum.org ID
  • 76743

 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
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: Portable No.707 - Siemens Bros.; London
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 9.75 x 3.5 x 14 inch / 248 x 89 x 356 mm
  • Notes
  • Attaché case style with handle and key lock; BBC/PMG stamp, GPO No.599;

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