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Old 12th March 2010, 04:29 PM   #1
david foster is offline david foster  United States
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Default Mains filter

My power amp has a noisy transformer I am told that a Mains filter might help.
I there an inexpensive simple to build option to buying one?
Thanks David
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Old 12th March 2010, 05:32 PM   #2
mlloyd1 is offline mlloyd1  United States
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Location: Northern Iliinois
Mains filter
if your transformer is a toroid and if your noise (what kind of noise?) is really coming from the transformer, you might have dc saturating the toroid core. here is one thread you can read: dc filter
there are likely others ...
good luck!

mlloyd1
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