A question of rejuvination?

[dtuomi]

I took a very old Conrac broadcast monitor with me to a service guy who said he would look at it. Perhaps one of the few in the L.A. area working on broadcast equipment who would look at a monitor more than 30 years old.

Anyway, the picture tube had very little emission to it, and so he rejuvenated it. Now it delivers great performance. In fact, I think I might now have an appreciation of just how good this guy was when he was new.

The question I have is, how long can I expect that tube to last before it becomes dim again, or worse goes out completely?

And how does one get a new tube, especially since Conrac seemed to only stamp a Conrac part number on the tube, and not any kind of identifying number that can be cross-referenced in a book? And since CRT's are banned, outlawed, and not produced, etc.

David