WAD 300b hum and buzz

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Location: London

WAD 300b hum and buzz

Post by adrian » Sat Nov 02, 2019 3:17 pm

Hi all
I had my WAD 300b upside down the other day to check a few things and when I returned it to the system it had developed both louder transformer hum and a buzz coming through the right channel tweeter. I didn't make any changes, but moved some cables a little to get a view of cap and res values. Could that have had such an impact?



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