- Country
- United States of America (USA)
- Manufacturer / Brand
- Watkins Johnson Company, Gaithersburg (MD)
- Year
- 1992–1998
- Category
- Commercial Receiver (may include amateur bands)
- Radiomuseum.org ID
- 80637
- Number of Transistors
- Semiconductors present.
- Semiconductors
- Main principle
- Superhet, double/triple conversion
- Wave bands
- Broadcast, Long Wave and more than two Short Wave bands.
- Details
- Remote Control (with wire or wireless)
- Power type and voltage
- Other, details in remarks or not known.
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: WJ-8721 - Watkins Johnson Company,
- Shape
- Rack
- Dimensions (WHD)
- 31 x 237 x 335 mm / 1.2 x 9.3 x 13.2 inch
- Notes
- computer controlled receiver, 12 receivers fit in a 19" rack; 5 - 30000 kHz, AM, CW, USB/LSB, ISB, FM; completely computer controlled, 1 Hz tuning steps, DSP IF.
- Net weight (2.2 lb = 1 kg)
- 2.2 kg / 4 lb 13.5 oz (4.846 lb)
- 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 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)