In Reply to: Noise in amp question posted by Tadlo on March 3, 2015 at 18:08:50:
Since it takes a while for the problem to occur I would suspect that whichever component is the problem is having heat related issues. A cap, resistor, or even a solder joint getting hot and then causing the problem.
Since the volume control doesn't affect the level of the static, check components downstream from the volume control.
Wishing you luck in your search.
Oh, by the way, if you happen to have one of the modern multi-meters that includes a laser or infrared thermometer, you can use that to check for "hot" components.
roN
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Follow Ups
- RE: Noise in amp question - REL54 10:16:34 03/04/15 (0)