- Country
- United States of America (USA)
- Manufacturer / Brand
- National Company; Cambridge & Malden (MA)
- Year
- 1949–1952
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 87467
-
- alternative name: National Toy Co.
- Brand: Thrillbox
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm
- Material
- Metal case
- from Radiomuseum.org
- Model: HRO-50RS - National Company; Cambridge &
- Shape
- Rack
- 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)