Quote:
Originally Posted by etype2
As you know, it gets super hot in the Phoenix area in Summer. If I just put the CRT upright in the sun, that alone might be enough to get things going for the spacers! Just kidding, don't want to risk the CRT.
Why are form spacers needed under the safety glass prior to reseal?
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With the CRT that I used the heat gun on, I did first put it face-down on a blanket in my back yard for a while (on a sunny summer day), then I also left it face-up in the metal can in the sun for a short while before I started the heat-gun process. If a person is going to use the heat-gun method, it probably is better for the CRT if its whole envelope is warm, not just the face.
On my CRT, the curve of the safety glass was a bit shallower than the curve of the CRT's face itself, so the foam tape around the edge held the glass away from the CRT slightly, even in the center.