Jeff,
Sadly, the Q130A/B double FET is firmly soldered in and I and loath to attempt to free it. If that DOES prove to be the problem, I will "screw [my] courage to the sticking place" as Lady Macbeth advised and give that a try. I still have loads of exploration to do on the unit to understand its workings. And, during this exploration, I might pull, clean, and re-seat the socketed ICs.
I agree that it would be interesting to drive the internal trigger source "to exhaustion" and and see what presents itself aftr Q130A/B.
Thank you for your suggestion. I am not sure what is presented at the wiki page (will traipse over there when I post this response), but I did create an entry on my blog with some detailed pictures to document this. You are, of course, free to visit there.
And, yes, the switch is A wafer switch. Q218 and Q216 are socketed.
--
William, k6whp
"A friend told me to cheer up, things could be worse.
So I cheered up and, sure enough, things got worse!"
k6whp