It's even worse than that ... further investigation shows shorted turn(s)
in the HV Secondary.
Looks like this EICO 720 has become an organ donor.
73, Dick, W1KSZ
Love the 720.
BY now I would think the PS needs a complete revamping.
if you are going to keep it and operate it I would remove the tube rectifier (with its heat), solid state the PS, remove the old PS choke, and use a capacitive filter supply. One could use an equivalent Hammond transformer in place of the EDCCOR.
Phil - AC0OB