• Country
• United States of America (USA)

• Manufacturer / Brand
• National Company; Cambridge & Malden (MA)

• Year
• 1963/1964

• Category
• Amateur-Receiver (amateur bands, may include broadcast bands)

• Radiomuseum.org ID
• 88512

• • alternative name: National Toy Co.
  • Brand: Thrillbox

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

• Number of Tubes
• 8

• Valves / Tubes
• 6BZ6 12BE6 12BE6 12BA6 12AV6 6BN8 6CW5 5Y3GT

• Main principle
• Superhet, double/triple conversion; ZF/IF 2215/230 kHz

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 105-120 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 3 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: NC-140 - National Company; Cambridge &

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 400 x 225 x 229 mm / 15.7 x 8.9 x 9 inch

• Notes
• coverage 540 kHz - 30 MHz, AM, CW (BFO);
  double conversion in bands above 4 MHz, Q multiplier;
  optional NTS-3B external speaker, optional XCU-109 crystal calibrator.

• Net weight (2.2 lb = 1 kg)
• 12.7 kg / 27 lb 15.6 oz (27.974 lb)

• Price in first year of sale
• 190.00 $

• Source of data
• Communications Receivers

• Mentioned in
• Shortwave Receivers - Past & Present (3rd ed.)

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 446 models, 285 with images and 189 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Company; Cambridge & Malden (MA)