CRT decay

Tony Duell wrote: Metric ton? Just kidding. Anyway I don't think the person means the glass is actually decaying (awful thick in front and sides anyway) bit probably that the finish is eroding, getting rough. Probably had a coating that's starting to crumble or etch. Sounds like more defined description is due. Never seen glass decay at all before either and I also have glass (super thin) in watch glasses of very old watches as well as the faces of old radios and televisions. Didn't even think about the age of the CRT itself until you said 50 yrs and had to think that that's only 1948. Man how time flies. I have an oscilloscope (Navy surplus) that was used int he Korean War that's around 1951 and the CRT is like new all the way around, but internally getting a little dim.