• Country
• United States of America (USA)

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

• Year
• 1962

• Category
• Amateur TRX: Transmitter/Receiver (and Transceiver)

• Radiomuseum.org ID
• 117836

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

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

• Number of Tubes
• 18

• Valves / Tubes
• 12BA6 12BE6 12BA6 12BA6 12BA6 12BA6 12AX7 6AQ5 12AU6 7360 6HG8 12AT7 12AU6 12BE6 12BY7 6GJ5 6GJ5

• Main principle
• Superhet with RF-stage; ZF/IF 5200 kHz; 2 AF stage(s)

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 117; 230 / 12 Volt

• Power out
• 2 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: NCX-3 - National Company; Cambridge &

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 340 x 160 x 290 mm / 13.4 x 6.3 x 11.4 inch

• Notes
• 6 DIODES

• Price in first year of sale
• 369.00 $

• Source of data
• - - Data from my own collection

• Author
• Model page created by Danko Tkalec. 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)