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I'm not sure how it does it, but it does a sort-of soft-rejuvenate in multiple, timed steps which does a wonderful job. The instructions clearly state that if a tube has already been hit by one of the other atomic blast rejuvenators, it cannot help it. The cleaning step seems to take care of most of my problems.
It's life test seems to be a very good gauge for tube condition. Anything over 10 seconds of hold time is good. My 15GP22 shows a drop at 9 seconds. I have a spare 19AP4 for my DuMont RA109 that held for 35 seconds.
For the 15GP22, I built a roundie-to-15GP22 adaptor for it using an old roundie booster and a junk CT100 chassis CRT connector. Using the clip leads, I recently did a Pilot 3" which just needed cleaning.
If anyone is missing the paperwork, I am looking for someone to scan all the pages I have and make it available to the lucky Beltron owners.
I'm very curious how this thing worked in the marketplace. It clearly says on it that it is the property of Appleway Electronics, Spokane, WA. Did the service shops rent it or lease it like a Xerox machine with the copy counters? Mine came with a pad of guarantee sheets offering a credit for a new tube if the Beltron did not do the job after a determined time. It also has a few tube stickers which the tech would attach to the Beltroned tube with the emission info.
Dave A
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