I got it!!!
http://suzaku.live-evil.org/0222251855.jpg front view
http://suzaku.live-evil.org/0222251855b.jpg LOOK! ALL THE KNOBS ARE THERE!
http://suzaku.live-evil.org/0222251855c.jpg Back view, someone stole the HV cover!
http://suzaku.live-evil.org/0222251914.jpg PWS, I dont think that one 5U4GB is good for some reason.
http://suzaku.live-evil.org/0222251837a.jpg 
um that's not a 16AP4, funny, it says 16AP4 on the chart!
http://suzaku.live-evil.org/0222251913.jpg testing...
http://suzaku.live-evil.org/0222251913a.jpg DEAD! STONE DEAD! 20 min, wont wake up.

http://suzaku.live-evil.org/0222251948.jpg COOKED!
http://suzaku.live-evil.org/0222251948a.jpg 16FP4
It's clear that thus is a replacement, and it too was run to death. the 16FP4 is almost an inch larger than the original tube it was made for and is oversized for the screen bezel that was in there, but was made to work.
https://tubedata.altanatubes.com.br/...27/1/16FP4.pdf
https://frank.pocnet.net/sheets/127/1/16AP4.pdf
Now i need to find SOMETHING i can make work in there again!
