I'm continuing to recap the whole chassis in stages. I also finally tested all the tubes and found a bunch that were weak, shorted or gassy and replaced them. I also carefully cleaned the tube sockets and the tuner with DeOxit applied with toothpicks and Q-Tips. The set now produces a very stable picture. (I still need to get my hands on a degaussing coil):
I decided to try a rough adjustment to the convergence, which was really bad. Things went pretty well until I got to the horizontal dynamic convergence:
None of the horizontal convergence controls seem to have any effect. Clearly, there is something amiss. I haven't begun to trouble shoot yet, as I thought I'd check in here first for advice. Any common failures to check out first? I wouldn't be surprised if the selenium rectifier is bad.
Thanks in advance.
-Clark