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I hadn't heard of any official effort to destroy TVs with those power supplies... Is there an article on it? Hopefully, we're talking 50 years ago....
There were a few postwar sets with that type of HV supply; the DuMont RA101 and others with prewar carry-over designs. I have a great respect for that circuit, and treat it the same as I treat an exposed 480-volt 3 phase electric panel. Either one will kill you with no regrets. It's gruesome to read a coroners' report on someone who has been killed by a high voltage DC shock. In one I read, that the guy had leaned on a grounded object, and touched a 25KV DC supply of some sort. Ligaments in his arms exploded, and were torn away from the bones. The moral of the story is, pay the same attention to your surroundings and to what you're doing while working on one of those power supplies, as you would if you were driving a fully packed school bus on an icy highway in the fog!
Charles
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Collecting & restoring TVs in Los Angeles since age 10
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10-05-2009, 11:42 AM
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