DRO-290A-1
Watkins Johnson Company, Gaithersburg (MD)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Watkins Johnson Company, Gaithersburg (MD)
- Year
- 1970 ??
- Category
- Radio module post 1925 (not a part, not a key)
- Radiomuseum.org ID
- 89300
- Number of Transistors
- Semiconductors present.
- Semiconductors
- Loudspeaker
- - - No sound reproduction output.
- Material
- Metal case
- from Radiomuseum.org
- Model: DRO-290A-1 - Watkins Johnson Company,
- Shape
- Rack
- Dimensions (WHD)
- 19 x 1.5 x 18 inch / 483 x 38 x 457 mm
- Notes
- digital frequency readout matching the 521A-3 SW/VHF receiver; displays up to 0,1 kHz with nixie tubes.
- Author
- Model page created by Martin Bösch. See "Data change" for further contributors.
- Other Models
-
Here you find 18 models, 9 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Watkins Johnson Company, Gaithersburg (MD)