Sony PVM-9L2
This is my Sony PVM-9L2, originally purchased in 2013 for $20, it had a really bad burn in.
Recently I replaced the tube with a M20JMP10X from a 8041Q and added a BKM-129X component input card. This makes it a much nicer display having 400 lines of resolution and effectively becomes a 9L3.
It's a great monitor with very accurate colors once you run through the calibration process. Another cool feature it has is a v-mount battery plate, this allows you to use modern lithium batteries that are readily available.