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![]() Robin wrote: "Bill Turner" wrote in message ... Keep in mind the difference in phosphor persistence. TV CRTs are designed with enough persistence to make 60 Hz flicker invisible. Computer CRTs have no such limitation. -- Bill, W6WRT Computer CRT's also have phosphor persistence, this is also defined by the physical size and depth of each layer of phosphor as in a TV CRT, the difference is that the phosphor pixels are smaller, so can convert less electron beam energy to light, and for a shorter period of time. Robin Hey Robin! *You* tell us why computer screens flicker on television. Then explain why many of them have horizontal bars running vertically through the pictures. Then explain why the bars are of different sizes and timing from appearance from top to bottom of the screen. Then explain why some don't. - Mike KB3EIA - |