120Hz hum in my amp, and here is a scope picture.

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BSST

BSST

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Joined 2018
"Don't fix it if it's not broken" is my instinct. Generally, I can tell by looking at ripple with a 'scope if capacitance is insufficient.

Finding a defective solder joint is much more satisfying than a speculative replacement of caps which might not have exercised the bad joint.

Cheers!
 
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