Ground Bounce

Posted: Sun Apr 27, 2008 7:25 am

Hi,
When playing back tracks from my laptop on other peoples amps if I use my AC cord for power on my laptop I get alot of ground bounce. If I run it from the battery problem solved... For an hour or so.
Short of running an extension cord from a neighbours how can I kill this noise?
Any help would be appreciated.
Thanks.

Posted: Sun Apr 27, 2008 8:18 am

you need to electrically decouple the audio signal
for example
http://www.palmergear.com/pli04.shtml
I'm sure there are a lot similar solutions elsewhere

cheers

Posted: Sun Apr 27, 2008 8:29 am

Cheers and thank you kindly.

Posted: Mon Apr 28, 2008 5:02 am

Get a better-quality power supply for the laptop that does not generate so much noise on the ground line (not "ground bounce" - that is something altogether different associated with switching logic).

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