- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1955 ?
- Category
- Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter
- Radiomuseum.org ID
- 89538
-
- alternative name: National Toy Co.
- Brand: Thrillbox
- Number of Tubes
- 4
- Main principle
- RF Converter/Adapter (not voltage converter); ZF/IF 30000 kHz
- Wave bands
- Wave Bands given in the notes.
- Power type and voltage
- Powered by external power supply or a main unit.
- Loudspeaker
- - - No sound reproduction output.
- Material
- Metal case
- from Radiomuseum.org
- Model: NC-300C2 - National Company; Cambridge &
- Shape
- Chassis only or for «building in»
- Notes
- coverage 143.5 - 148.5 MHz, converts signals into 30 - 35 MHz range of the NC-300 receiver;
powered via accessory tube socket or external 6,3 V heaters / 100-150 V B+;
fits into external NC-300CC converter cabinet.
- 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 445 models, 284 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)