I have a 1949 Motorola 9VT1 with a TS-18 chassis and the 8BP4 picture tube. It works quite well and doesn't seem to be bothered by being on for hours at a time. I have noticed, though, that radios are far more reliable than tube TVs and I suspect it is because the TV has more parts operating at higher voltages and component values are more critical. I might just try that mod to remove the retrace lines. they are really bad on the channels around here. When I show a DVD through an RF modulator, I get no retrace lines.
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Originally Posted by Sandy G
One thing I've noticed about virtually all of the little 7" electrostatic sets I've seen is that NONE of 'em has a very good picture-nowhere near in comparison to some of the pictures produced by the first roundies I've seen here. It also seems as if the 7" sets are working right at the very edge of what they're capable of doing-1 more volt on this resistor or that cap, & the whole shebang will self-destruct. Maybe they weren't like that, 60 yrs ago when they were new, but I've got radios from the twenties & thirties that don't seem to be bothered by being run. Is this just me ?-Sandy G.
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