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The 6K6 audio output would normally pull about 30ma, which certainly will have some influence on power supply regulation, but I have my doubts if it would account for your overall 30% voltage increase. In all honesty it's not a bad looking picture you have there, contrast looks acceptable for that ambient room lighting. Does the focus control have any influence on the picture sharpness? Your scan lines do look to be fairly well focused. If the beam bender(ion trap) is mis-adjusted that could be limiting the max brightness.
Last edited by Kevin Kuehn; 11-19-2016 at 12:57 AM.
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