I just got a clean Polyfusion formant filter pcb. I need a UA739 or a subcircuit to replace it.
I figure since it is a one off that I can use a panel that is close, 9 or 12 pots, 1-3 in 1-3 out.
If anybody wants an image before I start on it let me know.
I also have a clean set of AS1 sequencer pcbs
best
gino