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Old 29th January 2013, 10:18 AM   #1
inertial is offline inertial  Italy
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Hi!

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?

Thanks,
Bye!
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Old 29th January 2013, 12:42 PM   #2
Zen Mod is offline Zen Mod  Serbia
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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 ?

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Old 29th January 2013, 05:36 PM   #3
inertial is offline inertial  Italy
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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.
Thanks!
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