First of all, I¡¯d like to thank you for all your great ideas and suggestions: Mark, Barry, Tom, Pete, Eric, Raymond, and all those that I probably unintentionally forgot to mention.
I went back to the last thing I did ¡°before¡± I lost the output. And that was changing D232. I reflowed the solder joints, but still nothing. Then, before I used a power supply to substitute for the PT, I decided recheck all the voltages coming out of the secondary, and the those after all the rectifiers on the + and - sides (disconnected from the circuit). Everything was as they should, albeit a bit high due the the line voltage I guess. Although the PT primary is rated at 230V, and the manual even calls for testing up to 250V and some change.
I then cleaned and resoldered D232, and bingo, traces are back up again.
While checking the tube voltages, I realized that most of the 10 and 33 ohm resistors where way out of tolerance. One is is even at 45ohm instead of 33. All of them will be changed, probably today.
I¡¯m gonna let the unit run for a couple of hours on the bench, and pray for nothing else to give (again!!)
PS: Sorry if I don¡¯t always answer right away, but being in a different time zone than most of you guys, Europe (Paris), and sometimes quite busy with family, I¡¯m doing my best.