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Old 7th Dec 2022, 11:21 am   #32
Al (astral highway)
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Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
Default Re: Noise issue with DIY variable PSU and audio amplifier

Ok, give that a try as part of the experience , no harm done — and interesting to see what you find. It’s only a few mins’ work.

But realistically, what Lucien says in #25 (last paragraph) and patiently in #27 (middle paragraph) needs to be understood and remedy made accordingly if you want to fix this.
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