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Last updated
(Work in progress)
Wikipedia for CRT
I don't think I could explain CRT stuff much better than the wikipedia page, so you're better off looking there, but here are some videos worth watching.
The notable stuff for using CRT's in new installations is that they are finicky, not super bright (don't use them outside), and can sometimes have issues with filming well.
There are still providers out there for buying CRT's for things like museum installations. See Dotronix for more info on buying "new" CRT's.
These are essentially a different flavor of a CRT display, but they should be mentioned in the same breath. See some videos featuring these below:
Other Links
Autostereoscopic display from 1995 using high speed CRT's and an LCD grating
Also mention: Vectrex/Oscilloscopes