View Single Post
Old 7th Jan 2015, 6:34 pm   #30
broadgage
Nonode
 
Join Date: Jan 2010
Location: North Somerset, UK.
Posts: 2,129
Default Re: Rejuvenating Magic eye Valves?

Has anyone tried making new magic eye tuning indicators ? This would need glass working facilities, basic metal working equipment, and a high vacuum pumping plant.
Not a job for the average home workshop, but several people have manufactured valves by hand, and a magic eye looks no more complex than a triode.

https://www.youtube.com/watch?v=EzyXMEpq4qw

Valve manufacture by hand showing the equipment needed.
It might be easier to break apart the envelope of a dead magic eye, recoat with phosphor, and seal into a new envelope.
broadgage is offline