Trust me I'm not that far ahead of you, if at all. But I have worked on my own amp successfully so i'll share what I know, and I'll steer you to a few good places , that worked for me. The large Daly's are 50/50's 2 caps in one can, 3 of them on the outside. I believe that you have 2 separate 10uf's on the inside ( I haven't replaced those 2 in mine yet, so in my case the were OK ) I didn't replace them because I was unaware of them , I'll soon do it. I would also clean your tube sockets. Eurotubes has a video on that and biasing this amp. Only one of the output tubes? If so reverse them and see if it's the tube or socket , Cleaning may help ....tap on your preamp tubes see if one isn't very micro phonic. Dreamtone.org has schematics and good info on the 50 watt marshalls and other marshalls.....Doug here has a great parts service, it's quick too, one day I expect someone here to post that there parts arrived to them before they placed the order, it also helps to support this site, which may be the best out there.
This is probably my favorite amp, I bought it in 86 from a guy that was using it as speakers in his car....I think his brother bought it new in 84 and died.....The low input was never grounded so I never used it until this year ...I like it. I've replace the inputs, 50/50 caps, both volume pots, I smoked the PT in 02 and had that replaced the amp had the wrong fuse in it ....always check a used amp I've learned....
I had an effect's loop put in it around 88 but I don't use it ....I am planning to remove it and use the two holes for bias points.....I play this amp at low levels and it's great ....high levels are better ....I used to use a Brake (Attenuator) I don't really find that necessary this amp is great for anything
