Quote:
Originally Posted by wilkev
For my laptop (Acer 5610) I plugged it into the outlet and Just now I plugged it into a strip and it worked good either way. Just to test it, I took the adaptor off and plugged it into the strip and I got the high pitched whine back. mine actually is more of a whine than a low hum. Hope it works for you.
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If you are going to use an adaptor to defeat the ground for your laptop power supply I would set it up so that only the laptop is ungrounded. Since the laptop case is all plastic there probably not much danger there, however if your mixer and/or other metal encased equipment that might be plugged into the strip develops a ground fault without a way to shunt that power to ground and trip the breaker, you may become the new path to ground
Sam