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I disconnected the hv rect plate cap and it did arc but swapping rectifiers produced the same result, red plating. I took the cap off of the shunt regulator but that made no change either. I wonder if there is a problem with the fly back high voltage winding. When it failed, there was this loud hissing sound like I have heard before from failed flybacks and that telltale smell of burning windings. I suppose 53 years is a good run to get out of an original flyback. When my wife finds out it is not working she will be after me to get rid of it. She does not share my passion for vintage electronics, especially big items like a round tube console tv.
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Just look at those channels whiz on by. - Fred Sanford
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