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The source of voltage across that group of series resistors that forms the focus coil, Ion trap, and bias network( includes R127B) , comes from the center tap of the 5U4 low voltage rectifier winding. Measuring across C1C to ground, you should have a negative voltage of less than 150.
Last edited by Kevin Kuehn; 10-27-2015 at 04:42 PM.
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