• Country
• United States of America (USA)

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

• Year
• 1952–1958

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

• Radiomuseum.org ID
• 88895

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

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

• Number of Tubes
• 16

• Valves / Tubes
• 6BA6 6BA6 6BE6 6BE6 6BA6 6BA6 6BA6 6AL5 6AH6 6SJ7 6AL5 6SJ7 6SN7 6J5 6V6GT 6V6GT 5U4G 0B2

• Main principle
• Superhet, double/triple conversion; ZF/IF 1720/455 kHz

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

• Power type and voltage
• Alternating Current supply (AC) / 115 / 230 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 8 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: NC-183DR - National Company; Cambridge &

• Shape
• Rack

• Dimensions (WHD)
• 19 x 10.5 x 17.5 inch / 483 x 267 x 445 mm

• Notes
• coverage 540 - 31 and 48-56 MHz, bandspread in ham bands, AM, CW (BFO);
  double conversion on frequencies above 4 MHz;
  rack version of NC-183D
  optional NC-183DRS external rack speaker, NFM-83-50 narrow band FM-adaptor, SOJ-3 select-o-ject
  F.Osterman (Shortwave Receivers Past & Pres.) mentions VR150 instead of 0B2, not otherwise verified.

• 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)