- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1937–1939
- Category
- Amateur-Receiver (amateur bands, may include broadcast bands)
- Radiomuseum.org ID
- 87772
-
- alternative name: National Toy Co.
- Brand: Thrillbox
- Number of Tubes
- 9
- Main principle
- Superheterodyne (common); ZF/IF 1560 kHz
- Wave bands
- Short Wave (SW only)
- Power type and voltage
- Storage and/or dry batteries / 6 / 135 Volt
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: NC-81X-B - National Company; Cambridge &
- Shape
- Tablemodel, low profile (big size).
- Notes
- covers 160 - 10m HAM bands with bandspread only, out of band frequencies are not covered (c.f. general coverage model NC-80X-B);
battery operated version of NC-81X, needs 6V DC for heaters and B+ 135V,
matching external speaker DCS-8
- 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)