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#7
12-05-2015, 06:33 PM
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Some CRTs (non-aluminized and projection tubes especially) will burn in under 30 seconds, especially if the HV is over 18KV and the gun is biased for high beam current.......High enough beam current and you can burn that line in to the face in under a second....It is hard to tell the amount of beam current in a photo, just as it's hard to tell tone in a post (given your odd cagey reaction to my first one), and it's better on a CRT to turn the brightness down for a dim line the moment you realize one of the sweeps ain't working, than to risk it......Hell, when I do a gray scale on a color set with the min brightness setting and the service switch flipped I don't waste any time in turning all the screens down if any are at all bright. CRTs are a scarce finite commodity and should be treated with as much care as possible.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 
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