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In Reply to: Sylvania and military 845's posted by Paul B. on September 6, 2004 at 07:15:43:
According to Sibley's book, two were used in Navy QCL 20-khz sonar.Listed manufacturers are Amperex,Cunningham,GE,National Union,RCA,Taylor,United Electronics and Westinghouse.
I guess you can also count Western Electric, with the 284D.
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Follow Ups
- Sonar? - Gary Kaufman 09/6/0409:08:06 09/6/04 (0)