SW-3 Model I var 1c
National Company; Cambridge & Malden (MA)
- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1932
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 49615
-
- alternative name: National Toy Co.
- Brand: Thrillbox
- Number of Tubes
- 3
- Main principle
- TRF with regeneration
- Wave bands
- Broadcast, Long Wave and Short Wave.
- Power type and voltage
- Alternating Current supply (AC) / 2,5 / 135-180 Volt
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: SW-3 Model I [var 1c] - National Company; Cambridge &
- Shape
- Tablemodel, with any shape - general.
- Notes
- The National model SW-3 I has plug-in coils series "10-22" for coverage 90 - 35000 kHz. Headphones operation only, no audio output stage. This radio model can not be earlier than 1932, because of some tubes used.
- Price in first year of sale
- 89.00 $
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- 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)