I replaced the "big blue" capacitor on a tempest machine, after putting in the new one I have low voltage (120'ish V) on the B+, that is with the pot turned all the way up.
I did try switching back to the old big blue, still the same thing.
Game powers on and seems to run ok with sound etc, but the screen is not full size, it is now squished down noticeably.
Hoping by following what I saw as a strong suggestion repeatedly to replace the cap I didn't end up messing up the transformer unit, maybe I'm just missed something?