Class 2 or double insulated computer ATX power supplies - do they exist?

USB isolator?

"Mike B"

** Is that a battery operated laptop ?

but has a 50Hz noise problem when connected to a normal desktop PC.

** Grounding usually fixes noise injection.

** Don't be coy - what do you call " research " ???

** The earth could be flat too.

** Not unless you believe the earth IS flat. ** No.

FFS - tell us what the heck you are trying to do and with what.

And if doing that simple thing is just not possible - then

FUCK the HELL OFF !!

..... Phil

I'm taking you off my Christmas card list.

Mike

a

do you get the same problem if you ground the laptop? if not, it's not an earthing problem, it's something else.

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to a

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The noise increases by a factor of 4.

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Sounds like you need to try another power point and another power supply , switch mode supplys can be very noisy at times if there is an earthing problem or a conflict with another switch mode on the same phase

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X-No-Archive: Yes

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It seems your capacitor is acting like an antenna,

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?? 100% natural

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