Halos are just before my time but the pix sure has a bad
transformer look to it. As for testing the caps the best & most
accurate test is a NEW cap. You may want to recap the
vert before trying to find a VOT for this beast. Also if you
got an analyst unhook the transformer & just drive that. Should
get a much more normal sweep ( but not perfect) if the prob is behind it.
As for the main filter cans although they are probably in need of
changing the pix is full width & no apparent hum bars. Best to start
with the worst problems & be sure to find them before doing
all the preventative stuff & total recaps etc.........
73 Zeno