• Year
  • 1934/1935
  • Category
  • RF (Radio Frequency-) Amplifier
  • Radiomuseum.org ID
  • 286354
    • alternative name: National Toy Co.
    • Brand: Thrillbox

 Technical Specifications

  • Number of Tubes
  • 1
  • Main principle
  • Radio Frequency Amplification only
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Powered by external power supply or a main unit.
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Preselector PSK - National Company; Cambridge &
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • The National PSK Preselector was specifically designed for the National FB-7 series of receivers, but could be used for any TRF or superhet. It utilizes a single plug-in coil for each band, covering 0.9 MHz to 34 MHz. It could be run as a 2.5 or 6 volt unit, depending on which tube was used. The PSK can be run from the same power source as the main unit or from a separate power supply.

  • Price in first year of sale
  • 19.00 USD
  • Mentioned in
  • National Catalog No. 240 - 1934
  • Author
  • Model page created by Wayne Childress. See "Data change" for further contributors.

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