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6CB5's cathode current AND high voltage varies with brightness. Checking cathode current on 6BK4 (850 microamps) is part of the procedure. If you adjust the HV for 24 kV(?) and the current at 6BK4 falls below that value, the eff coil needs readjusted. Lots of interaction.I'll check my library of RCA stuff to see the exact procedure and email it.
Hopefully the eff slug was not adjusted with a metal allen key, which splits it, requiring very careful removal by hand, using a drill bit.
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"When resistors increase in value, they're worthless"
-Dave G
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08-30-2016, 02:19 PM
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