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521A-3

521A-3; Watkins Johnson (ID = 170137) Receiver-C 521A-3; Watkins Johnson (ID = 170138) Receiver-C
521A-3; Watkins Johnson (ID = 170139) Receiver-C 521A-3; Watkins Johnson (ID = 203168) Receiver-C
521A-3; Watkins Johnson (ID = 1287025) Receiver-C 521A-3; Watkins Johnson (ID = 1287026) Receiver-C
521A-3; Watkins Johnson (ID = 1287027) Receiver-C 521A-3; Watkins Johnson (ID = 1287028) Receiver-C
521A-3; Watkins Johnson (ID = 1287030) Receiver-C 521A-3; Watkins Johnson (ID = 1287031) Receiver-C
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521A-3; Watkins Johnson (ID = 170137) Receiver-C
Watkins Johnson: 521A-3 [Receiver-C] ID = 170137 933x471
Select picture or schematic to display from thumbnails on the right and click for download.
For model 521A-3, Watkins Johnson Company, Gaithersburg (MD)
 
Country:  United States of America (USA)
Manufacturer / Brand:  Watkins Johnson Company, Gaithersburg (MD)
Year: 1967 Category: Commercial Receiver (may include amateur bands)
Semiconductors (the count is only for transistors) Semiconductors present.
Main principle Super-Heterodyne (Super in general)
Wave bands Wave Bands given in the notes.
Details
Power type and voltage Alternating Current supply (AC) / 115/230 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: 521A-3 - Watkins Johnson Company,
Material Metal case
Shape Rack
Dimensions (WHD) 19 x 3.5 x 18 inch / 483 x 89 x 457 mm
Notes sw / vhf receiver, coverage 20 - 80 MHz, FM, AM, CW (BFO);
tuned via steel tape dial;
features internal panoramic display, sweep width 300 kHz;
in same rack with DRO-290A-1 digital frequency readout with nixie tubes.
Swiss Military model number E-649.
Source of data - - Data from my own collection

Model page created by Martin Bösch. See "Data change" for further contributors.



All listed radios etc. from Watkins Johnson Company, Gaithersburg (MD)
Here you find 18 models, 8 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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