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Originally Posted by Harold Deppe
Hi all,
This is my first post to this very interesting site.
I recently started restoration on a CTC-16 with a rebuilt 21FJP22.
The CRT looked very good on the checker and when fired up produced a good picture with excellent gray scale tracking. One night after watching it for about an hour I shut it down and went to bed. Two days later I decided to work on some issues with the convergence board. I was horrified to see the gun assembly hanging limp. During cool down, the contraction of the glass must have caused a weakened neck seal to let go. Up to this point, it was a great tube with only the slightest hint of delamination of the face plate (barely noticeable with high brightness).
Anybody know of a source of 21FJP22's?
Harold
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Sounds like the yoke should be removed whenever those sets are transported as I expect even gentle shaking from a truck-bed could put a micro crack in an imperfect neck.