Another G60T thread! This one is having an unusual issue. As the note decays it starts a sort of vibrato. This is most noticeable on the clean ch but I think I hear it in both. Any suggestions?
Monitor the power supply voltages, especially the preamp, high voltage bypass caps.
If there is Vac ripple on them, then those caps are bad.
If you have a scope see if the signal is riding on the preamp high voltage node.
That's a sign of a bad preamp cap.
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