• Country
• United States of America (USA)

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

• Year
• 1948

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 87667

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

• Number of Tubes
• 16

• Valves / Tubes
• 6J5 6SA7 6SG7 6SG7 6SG7 6SG7 6SG7 6H6 6AC7 6H6 6SJ7 6SJ7 6J5 6V6GT 6V6GT 5U4

• Main principle
• Superhet with RF-stage

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

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: NBS-1 - National Company; Cambridge &

• Shape
• Rack

• Notes
• coverage 0.54-1.6 / 1.6-4.3 / 4.3-12 / 12-31 / 48-56 MHz; AM/CW (BFO); crystal filter, noise limiter.
  Enhanced special rack version of the National NC-183 built by National in a small series for the National Bureau of Standards (NBS) in Washington, D.C.

• 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)