Quote:
Originally Posted by ohohyodafarted
RE: Beltron,
I just wanted to relate an experience I had with a 21cyp22. Upon testing it with a B&K 465 crt tester, the tube was devoid of all emission. I had very little hope of bringing the tube back to life...
IF this 15GP22 still has a good vacuum, and the tube has weak emission, it is very likely that it can be brought back to very good performance with the Beltron. When you get the chassis up and running, see if someone in your area has a Beltron that could come over and test and possibly clean or restore your tube. You will need to build a 20 pin to 14 pin adapter to use the Beltron 14 pin socket. It can't hurt and it will possibly restore the tube to a very good performance level. At the very least it will improve it.
Good Luck and keep us posted on your progress.
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I appreciate the notes about the Beltron process. I have also heard that the newer B&Ks (467 which I have, and 470,480,490) and the Sencore CR70 are safe and (maybe) effective; the 467 has definitely worked well on the many B&W CRTs I have done. When I get that far, I will check around for anyone who has a Beltron here in the San Francisco area.