I need suggestions for a zero result.
I have read of putting the ground of the circuit to the ground of the earth via RC with R = 470KOhm and C = 1mF.
At the listening test the result is very little.
I have thinked that 470KOhm can be exagerate, and maybe 1mF also.
In your experience, what do you suggest?
try to give us more information
even if using Google translate , you need enough words to express your self - what , where , how
are you speaking of toaster , or TV , or dvd player ?
You are right. I have a passive pre amplifier. Normally the ground is unplugged. Now I have read that is better to connect the ground to the electrical system of the house.
Better again, is to insert in serie to this ground a net filter with RC in parallel.
I hope to be understandable now.
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