Well,I was greeted by a bright raster.The screen goes dark at a higher brightness setting,as I only have about 9Kv of high voltage now.
This CRT requires an ion trap,just like the 12lp4,but is about 2 inches shorter
in overall length.The face of the screen seems to be just a bit smaller too.
I have more work to do,but its looking good sofar....I do not have a cabinet for this chassis,I plan to use it as is..
https://www.toadstation.com/12hp4a