Quote:
Originally Posted by John Folsom
We who have attempted 15GP22 rebuilds have our fingers crossed for you!
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Scotty showed my some 15GP22s with obvious leak points - they look like filaments of air crossing the seal surface from outside to inside when you look from the front. Some tubes had a lot of them. No such obvious defects on the 21AX. He also tried a spark coil to see if he could get any sparking through the glass.