Finally discovered a solder bridge that had been preventing the circuit working, all these years, and fired it up. Simply wonderful.
One thing I will note, in case it hasn't been mentioned yet, is that anyone wanting CW to produce faster sweep rates should use a C-taper 1M pot.
At present, I don't have much use for the Filter Matrix mode, but I may consider use of an envelope follower and LDR in parallel with the Range control to get envelope-swept flanging. That's down the road, though. My hunch is that Filter-Matrix mode was originally intended to be used with the EHX Hot Foot controller to get "manual" flanging.
Another point to mention is the importance of the 22k clock trimmer. Critical in nailing the kind of tone you want.
Finally, I connected a 47pf cap in parallel with the 22pf clock cap and found I could get a very nice Leslie-like gurgle. Since increasing the delay range has a tendency to make things a little more boing-ey, one is well advised to turn the Range control way down to make sounds more palatable.
A belated big thanks to thomeeque for a terrific circuit and layout. I have a couple of big-box Deluxe Electric Mistresses sitting here that a friend asked me to fix. I'll have to see how the 3207-based circuit fares against a Reticon-based unit. I'm not expecting miracles, but you never know.
