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Did RCA or anybody else rebuild the 15GP22 back in the 50's or 60's? I think we are also reaching the day when even 21FJP22 and 21FBP22's and other delta tubes will not be able to be rebuilt. But there are a lot more of them around so it will be a long long time before they rare and they don't seem to have the vacume loss problem as the 15G does. The way things are going in the CRT field there is a small window left for the rebuild to happen or the sad fact is there won't much of a chance in a few years. I hope people are able to rebuild some of the tubes before the art is gone.
Steve
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