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Old 02-07-2022, 10:34 PM
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bandersen bandersen is offline
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
Posts: 8,814
Interesting results with a 1M cathode resistor. The gain does drop, but the grid is far less sensitive to external noise. However, there is still a buzz present. Grounding the grid does nothing to reduce it. Grounding the cathode reduces it by about 50%.

I'll continue to experiment.
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