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Old 03-21-2018, 12:24 AM
RetroHacker RetroHacker is offline
Electronics Accumulator
 
Join Date: Jan 2005
Location: Niskayuna, NY
Posts: 464
The main filter cap is failing/has failed if you're getting a loud hum. Try paralleling another cap of suitable voltage over it and at least 1000uf and see if the hum goes away. Also possible your voltage regulator isn't working right, double check that it's actually putting out clean 5V

-Ian
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