Quote:
Originally Posted by benman94
"Ion burns" on tubes without straight guns are not in fact "ion burns" in the sense some people still seem to believe:
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Well that's interesting reading.
In that case the burn on my 12JP4
is an Ion burn because it has a straight gun, but the spot on the 8AP4 would be from vaporized metal from the gun.
I once had a 17" bent gun CRT from a Setchell Carlson (This one in fact
http://www.vintagetvsets.com/setchell.htm) that had several flea bites on the inside of the screen that looked like micrometeorites had stuck the phosphor and blasted it off.
These weren't large fuzzy spots but more like how a windshield gets pitted when a small stone hits it, only the Phosphor was affected though, not the glass itself.
Possibly the beam had hit the screen when there was no sweep but these were off to the the side, not dead center.