Electronics > Beginners

Noisy SMPS putting 100Hz buzz into mains?

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dazz:
It's a TPA3118 based amp that outputs about 20W @ 20V 8 ohms, but with distortion pedals might go above 30W. So I think a 20V 3.3A adapter would suffice. Actually I think I have an old Dell Inspiron 6000 adapter in a box somewhere

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