• Year
  • 1936–1940 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 49549
    • alternative name: National Toy Co.
    • Brand: Thrillbox

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • TRF with regeneration
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 2,5 / 135-180 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: SW-3 Model II - National Company; Cambridge &
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • plug-in coils series "60-72" for coverage 90 - 35000 kHz;
    headphones operation only, no audio output stage, optional DWG audio amplifier
    matching external power supply National 5880AB (4 prong plug)
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 14 = 1944 = before 1943

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

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