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To this day i can't stand it when someone here or someone i know runs the tv for noise , i keep saying thats what a radio is for but it doesn't sink in.
as far as running a tv as long as i can remember the 61 or 62 era zenith 23" b&w console was run and run , either cartoons , movies , sports , that set was run until like 72 or so when it was replaced with a chromacolor II 19" hybrid , then that set was run and run , the 62 was then moved to a different room where in 85-87 era was tossed because the fly went but crt still strong , the chromeacolor was still going till 94 when it was tossed because it was given up on in 93 and a move to a new home , again crt still strong.
so it is possible that some sets were run even back in the day for as long as possible , this would explain the weak crt and multiple tubes in the set changed , a friend who was in the repair business said he saw more rca roundie crts go bad then zenith , perhaps the way they were made ?
the type of crt makes a difference ? both me and a friend found more 10bp4 crts to be good or useable compared to the 12lp4 crts , and 16gp4s are as bad as 12lp4s more bad then good so in the case of those tubes maybe it was just the design.
mike
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