Hi again!
Yes, Adrian! Those pdfs helps a lot! My serial is 2642A, so T1 must and is the 9100-4603. Confirmed. And the A6 schematics are useful for my restoration procedure, thanks :)
Yesterday I started checks on rectifier boards. A6 needs two new transistors (2N2222), the earlier owner broke those messing with the transformer. I checked the diodes and fuses on A6 and everyone looks fine to me. Next will be feed some AC and check for rectifying action.
I want to check the A7 too, feeding DC with my bench supply and test with electronic load. Once I confirmed these two boards work properly, I'll try to feed rails with all boards installed on the motherboard (and crossing fingers).
While I wait for the UK transformer to arrive, I'll do deep clean and dismantle almost every bit of the unit.?Even if I don't restore it as a 8350B, it still needs deep cleaning. My plan is try the 'new' transformer beyond the fuse current ratings seen on 8566B manual, hoping it was oversized when the engineers put it on that SA. So let the good times roll.
Pictures attached: dirty front panel, burnt T1 (note char rosin between windings and cables - I checked all secondary windings in dead short except for the most external one), A6 with T1 rosin explosion residue and corroded/broken semicons, A7 and motherboard dirt/corrosion
Regards,
Ruben
RubenRubio
