laptop to amp noise

[stephen curtis]

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[Andrew Everard]

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Meaning?

 

[Anonymous]

he's waiting for the wall to bang against his head

 

[John Duncan]

Oo! Oo! Me! Me! I know this one!

If you unplug your laptop from the mains and run it on its battery, does the noise go away?

 

[pwiles1968]

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What else did you expect ?