We all have tubes that we would like to see rebuilt, I'm sure, just waiting for the day that it ever starts up again within reason price wise.
It MIGHT, happen, right?
I still have that hardly working 24AHP4, I'd like to see renewed some time, which has many characteristics of the CRTs that the Philco Predictas used, just a lot larger!
https://frank.pocnet.net/sheets/049/2/24AHP4.pdf