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Automatic RF noise cancellation and audio noise measurement
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August 10th 03, 05:21 PM
R J Carpenter
Posts: n/a
"Rob Judd" wrote in message
...
Open-air triode?? Do tell, you have me fascinated...
IIRC, field effect triodes {FETs} were made about the same time as the first
vacuum tubes, but they didn't work well enough, given materials technology
of the day.
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