• Year
  • 1939–1941
  • Category
  • Power supply/conditioner or battery or charger 
  • Radiomuseum.org ID
  • 286065
    • alternative name: National Toy Co.
    • Brand: Thrillbox

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • 80
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Power Supply SPU-56 - National Company; Cambridge &
  • Shape
  • Rack
  • Notes
  • The National SPU-56 Power Supply is the same as the National 5856 power supply, but in a rack mount configuration, It supplies power for the National NHU and NHU-20 receivers. It supplies 6.3V at 3 amps for the filament and 200V at 65ma for the B+.

  • Price in first year of sale
  • 49.50 USD
  • Mentioned in
  • National Company 1941 Catalog
  • Author
  • Model page created by Wayne Childress. See "Data change" for further contributors.

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