New year, new parts, new attempt at this mess.
I set the freq to 1Khz. I have a triangle wave of 9.3V P2P at the following points that drive the triangle into the shaper:
The three stage amp voltages that feed the shaper are:
Junction of CR130/Cr140 gate of Q201 (double FET): 9.3V P2P;
Base of Q221 taken from R211: 9.3V P2P;
Junction of R223/R224 Emitter of Q221: 9.3V P2P;
Junction of CR130/CR140/Q201 B, 3.5v p-p
Q211/R211, 3.4v p-p
R223/R224/Q221 E, 3.4v p-p
Just thought of something else when I was looking at your frequency issue. Your frequency problem is probably related to the VCF control voltage. That would also support the problem you 'fixed' by adding that resistor. It is not unusual for people to drive too much DC or sweep into the VCF connector. You will notice that those opamps are socketed. One is a 741 and the other a LM1458. I now suspect one or the other is bad. They cost about a nickel. I would swap the LM1458 first as the 'B' section is closest to the VCF port. Make sure you note the pin one location on both when replacing them. At one time you could get both at Radioshack. I wouldn't even bother checking the other voltages above until you swap them out.
Tried new op-amps, no change. I realized I screwed up and got a 4558 instead of the 1458, but it seems those are mostly interchangeable. Absolutely no difference between them though in terms of performance or voltages. The numbers above were taken with the original chips in place again.
Time to put this back in the pile of misfit electronics and spend some time working on something that doesn't make me want to beat my head against a wall