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An electronic device that supplies electrical energy to a load. It can be AC or DC input. Typically DC output.

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Safely connecting a preamp powered by a benchtop DC power supply to a power amp

I pulled the preamp out of a broken guitar combo amp. The preamp has positive, negative, and ground leads for powering it at +/-25V. I would like to power the preamp with a dual channel benchtop power …
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