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weak filter response

Posted: Thu Dec 29, 2022 7:32 am
by gujo
After fixing the issue with patch points from my previous thread (viewtopic.php?t=196895) I'm not back at a previous problem.
The filter knob doesn't "bite" until maybe the last 1/4 of the turn. I have tried replacing vr3 and that makes no difference. Adjusting tm3 affects the filter but not the range i can tweak it with vr3.
Since I have desoldered q8-q10 and put them in sockets (to play around with transistors with different betas) I'm afraid something around those parts might have been damaged/shorted. Any pointers on what might have broken here?