I have a problem with tuning my SMR4 mkII filter board. When I switch off both oscillators, turn the resonance of the filter to maximum and play a note on the keyboard I can hear the self oscillating of the filter. But the pitch of the sound changes every time I press the same key. I have tried to adjust the trimmer but it doesn’t get better.
I’m getting crazy
Have you checked for LFO settings that maybe modulating the cutoff or res parameters?
oh, thank you
I’m such an idiot …