Home Tweakers' Asylum

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

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

Why don't you enlighten the class with your vast electrical knowledge.

Because I've no idea if anyone else cares to know, because you're clearly out to score points, not to debate and because it's wandering off the OP's point.

But, if you go to http://www.acoustica.org.uk/ and scroll down to "UK Mains plug fuses", you'll find as clear an explanation as you're likely to find. Meanwhile, NB that:

* The use of unearthed but insulated devices long predates current definitions and standards which was why I wrote "except for what we now call 'double insulated' devices".

* The socket pictured in your link doesn't show shutters though the text describes them.

* It's inaccurate to suggest that "Type G wall sockets almost always include switches for extra safety". The switch is for convenience, not safety.

* Also inaccurate is "The lack of such an earth pin on a type C plug makes it impossible to connect it to a type G receptacle". Fused adapters (usually 1 or 2.5 amp) that make type C plugs perfectly safe in UK sockets are readily available.

And so on.


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