- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1939–1941
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 49605
-
- alternative name: National Toy Co.
- Brand: Thrillbox
- Number of Tubes
- 12
- Main principle
- Superhet with RF-stage; ZF/IF 1560 kHz
- Wave bands
- Wave Bands given in the notes.
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: NHU-20B - National Company; Cambridge &
- Shape
- Tablemodel, with any shape - general.
- Notes
- coverage 15 - 62 MHz (additional 20 mb coil), AM, CW (BFO);
battery operated variant of NHU20 (heaters 6,3V, B+ 180V)
- Price in first year of sale
- 279.00 $
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 14 = 1944 = before 1943
- 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)