@SilverSolder, yeah, I honestly never thought I would need a TV tube "Rejuvenator" (which I always thought was a scam, anyway) but I was wrong! It's a welcome addition to my shop (and the Sencore CR70 is nicely made and comes with well written documentation)
@James_s, yep, it is all back together (so many wires and screws!!!) and looks great. I did back off the contrast to about mid range, and adjusted the brightness so that with the f.p. intensity control full CW, the background is just dark. Normal viewing with decent focus is now at about mid range on the f.p. intensity control. I will say that the focus doesn't hold well once you start increasing the intensity control, but its fine with a normal viewing intensity. I call it a success, for sure.
This doesn't prove much, since there was no "before" photo, but here it is, with normal intensity! It's a good day here.