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Old 3rd Dec 2021, 10:09 am   #50
Mooly
Octode
 
Join Date: May 2011
Location: Lancashire, UK.
Posts: 1,351
Default Re: Quad 34 preamp volume knob clicks

Quote:
Originally Posted by shaunpw View Post
Sorry that was a mistype, it was meant to be -41.0mv not -0.41mv.
So work with that value of -41mv. By elimination you have to isolate any possible feed in points to that line.

Heating the board as Ted suggests is actually not a bad idea. Try a hair dryer, any improvement? Try breathing on it. Any worse?

Randomly changing parts like caps does apply a lot of heat locally and that could confuse results. You might think replacing something seems to fix or improve it when in fact the heat was the reason.
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