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My first thought is that if R56 measures close to 82K and you are reading 81.7K in circuit, that is very close and small variances are due to other components in the circuit. I am not at home, and if nobody answers otherwise I can take some readings for you to compare. If you have rebuilt with all new components, when you are confident you should power it up with the F1 fuse removed, and verify voltage at test point TP2 (~190 VDC, adjustable by VR1)
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Berea, OH