Quote:
Originally Posted by John Folsom
Tom,
An expansion on what Pete said about having the guns rebuilt: After the gun is removed, Bob Galanter uses an EDM (electro-dynamic machining) tool to mill out the old cathodes from the gun structure with micron precision. Bob built a custom jig to hold the gun assembly which allows the precision EDM machining to be done. Without Bob's expertise, the 15G project whold have come to a halt becausee the company which puts new cathodes and filaments back in ghe gun and mounts the gun on the new stem was no longer willing to attempt the difficult task of removing the old cathodes. I do not think they had access to EDM machining.
Tune in next week for final acceptance test results on the CRT rebuilt at Hawkeye.
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Thanks John........Bob's custom jig and EDM (electro-dynamic machining) was truly the breakthru on this ambitious project. I imagine the crt vendor just had to slip his new heater/cathode tube into the hole Bob bored into the original cathode cylinder?? I would be very interested in the total rebuild cost with profit. Scotty quoted me $400 for my 21FBP22 which is a slam-dunk in comparison. Tom