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In Reply to: RE: update 2 posted by vinnie2 on February 15, 2019 at 11:49:35
Decrease R(g) to 150k and increase the size of your coupling cap to 0.22 uf.
Follow Ups:
You said decrease Rg to 150k, but wouldn't that be an increase? And do you mean the grid stopper or the grid leak resistor?
Edits: 02/16/19
Vinnie:
My apologies, I misread your grid-to-ground resistor as being 600k (not 60k).
Please ignore my suggestion.
FWIW: 0.1 uf and 60 kohms yields a first-order rolloff at 26.5 Hz. This will produce phase shifts below 106 Hz.
Tre' suggested I try a 0.47uf cap to get rid of that problem, so I will give that a try.
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