The guy is a mad scientist... The video is a real hoot to watch... It
is interesting all the jigs and tools he has/made... I wonder if he
bought some of it as surplus from a commercial tube factory, maybe
circa 1920's..
I would have liked to have seen a bit more on the details of the
gettering and filament activation...

So, there ya go guys: it is only a small step from that little triode
to making your own 3CX15000A7 in the basement...

denny / k8do