• Year
  • 1937 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 300504

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF with regeneration
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries / 2 & 108 & -7.5 Volt
  • Loudspeaker
  • Presumably Dynamic Loudspeaker (moving coil) / Ø 6.5 inch = 16.5 cm
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: M4Q - Roberts Radio Co.Ltd., East
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 11.5 x 11 x 7 inch / 292 x 279 x 178 mm
  • Net weight (2.2 lb = 1 kg)
  • 20 lb 8 oz (20.5 lb) / 9.307 kg
  • Mentioned in
  • -- Original prospect or advert
  • Author
  • Model page created by Trevor Trangmar. See "Data change" for further contributors.

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The model M4Q is part of the collections of the following members.

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