I can definitely get more pics and will update progress.
The voltages "seem" to be correct all over the place...9V, 6V, and 1.8V everywhere it should be. The gate and drain voltages of all the FETs match each other, and the source legs all seem to hover between 5.5-5.6 volts or so...will hafta double check those readings, going off memory.
The threadle pot smoothly measures between about 1k-70k with no weird jumps.
The IC doing the LFO has swinging voltage (between ~1-3 volts if I recall) on the output pin.
The mode switch and rotary speed switch don't seem to do anything at all...no audible click or effect to the non-phasing output signal that does get through the pedal.
The Q knob does increase bandwidth (or volume anyway?), sounds a little louder with more perceived bass content.
Again I could be wrong and hafta check again, but possibly Z2 pin 9 (inverting input) did not have audio with a probe...and was thinking it should.
.......
I recapped all the electrolytics with new ELNA audio grade 10uF's throughout, and the 220uF filter cap with a new one. I may replace the 6M8 carbon comp with a metal film just for posterity. I have a 180p silver mica I can swap the ceramic with, not that it ought to, but that cap looks seriously funky and I don't happen to have any ceramics in that value. I am going to add the pulldown resistor at the input and 100n cap on the feedback loop to get rid of switch pop, because it's definitely a loud pop!
I already have a brand new set of LM324N's and a bag of J112's in case the opamps or FET's end up needing replacing. You would want to assume a transistor failed but right now I don't see it. Only had a short time with the unit, and no time on the scope yet. I'll be excited to get this up and running as it was always a bit of a white whale for my personal collection!
