Quote:
Originally Posted by tvcollector
Also has anyone ever rejuvenated a tube that stayed good, and didn't gradually go back down over time?
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This may not apply very well to our antique TV sets that are only occasionally used, but I have indeed rejuvenated CRTs that then lasted a number of years in some cases. Years of 24-hour-per-day operation, in fact. And, that may be the "catch". The CRTs I am referring to are in airport arrival/departure-type monitors that are never shut off (except for repairs). The "catch" is that in many cases when these monitors are shut off and later turned on again, they can take ten minutes to reach full brightness afterward. But after that ten minutes, the CRT looks very good while it had been poor before the rejuvenation. A ten-minute warm-up is not reasonable for a home-use CRT, however.