• Country
• United States of America (USA)

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

• Year
• 1968–1970

• Category
• Military Receiver

• Radiomuseum.org ID
• 90078

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superhet, double/triple conversion

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Line / Batteries (any type) / 115 / 24 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Power out
• 1 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: R-1490 / GRR-17 - National Company; Cambridge &

• Shape
• Rack

• Dimensions (WHD)
• 431 x 203 x 308 mm / 17 x 8 x 12.1 inch

• Notes
• coverage 2 - 30 MHz, AM, CW, USB/LSB, FSK;
  tuning via decadic knobs and vernier tuning

• Net weight (2.2 lb = 1 kg)
• 19.8 kg / 43 lb 9.8 oz (43.612 lb)

• Source of data
• 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)