First light!
It took a while to realize there's a, RCA jack in the back for a pilot lamp interlock. It needs to be shorted for the lamps to illuminate. I assume it can get annoying while watching the set to have those on.
At full power with 5U4s installed, I got a raster!
Height increased
After a lot of control tweaking, a stable image was achieved
Hmm. I think the huge focus coil is messing up my little 5AXP4 CRT.
Here it is with focus coil unmounted. Rather washed out even with brightness turned all the way down. Still have 10 electrolytics to replace on the main chassis.