Quote:
Originally Posted by ohohyodafarted
I would not place bets that the tube is good. In two of the photos you can see a milky white residue around the getters. That is a very bad sign. The tube that John and I rebuilt went gassy and the getters are still nice and silver with NOT any sign of milky white residue. This tube is most likely under partial vacuum, but probably gassy. And in any event the seller disclosed that somebody had wired a makeshift brightner in the filiment circuit and that is sure sign that the crt is toast.
|
I 100% agree with your observation... even though some "silver" is seen in the center of the getter flashes, the other side of the getter is likely to be white and "used up". I suspect that if the tube is powered up with a tube checker the heaters will quickly burn out from excess current, if they are not blown already.
jr