That Toshiba (32AF43) with the high pitched whine after 5 -15 minutes of operation has dissipated. The TV was given to me, and it seems that moving it makes the loose winding or whatever worse. I am not a TV repair person nor an ET. A technician friend recommended applying some HV dope on the winding after finding the source. If the problem remains the way it is now, I'll just live with it; however, if it gets worse when the weather changes, I will take another look. I will be careful to discharge the tube and HV sources caps ... as I don't want to get shocked to kingdom come.
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Lastly, thanks for the advise. It seems right to me.
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