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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

RE: Why would reversing AC leads reduce hum in a component?

You're talking nonsense about the UK system and its 3-pin plugs. No point in pursuing either it or what is meant by "double insulated". I'm sure you're right about US practice.

Whatever, I trust we can agree that the use of "cheater" plugs and the like to reverse the polarity of transformer primary windings is unacceptable other than as a temporary measure in competent hands. To suggest otherwise in a hobbyist forum is, well, ill advised.


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