Quote:
Originally Posted by jr_tech
R47 appears to be only a minor contributor to the cathode bias of the 6L6 output tubes, the lowest resistance path to ground for the 6L6 cathode current appears to be through the series connected heaters of V1 and V2 (12AX7s) through connection “Z”.
jr
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Yes. I think R47's main purpose is to prevent point Z from rising too high when V1 or V2 is pulled or has an open filament.