EIA code 210, which I think is Hytron. The CRT tested very weak(like lower third of the bad scale), but I have a GE replacement here that should work fine.
I discovered last night that my flyback primary tap going to the HOT is open. I have a Thordarson Fly-2 ordered that supposedly subs. I also noticed that the vertical output primary resistance reads about double what's it's suppose too. Looks like this restoration should be a lot of fun before it's over.
