• Year
  • 1933/1934 ?
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 85424
    • alternative name: National Toy Co.
    • Brand: Thrillbox

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 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 500 kHz
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Powered by external power supply or a main unit.
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: FB-7A - National Company; Cambridge &
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • The "A" suffix of the FB-7A stood for "air-tuned" versus mica compressed IF transformers.

    2,5V-heated tubes and air-tuned IF transformers:
    coverage 1500 - 20000 kHz (coils FB A-E), 800 - 34000 kHz (with optional coils FB AA-F), 20 - 160 m amateur bands (with optional bandspread coils AB 20-160);
    optional external RF preselector;
    optional external power supplies 5880AB, 5887AB or high voltage 5897AB

  • Price in first year of sale
  • 31.00 $
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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