[RodB]

OK, so I'm seeing the B+ is about 25v low causing the overall performance to be reduced. How much I can't say. I looked at the screen voltage of the 6K6 output tubes and the schematic calls for 260v, which is the B+ right off the power supply. That B+ feeds resistor 14X. See where I'm going? Generally, a ten percent reduction is within tolerance but in this case it bears investigation because it's ten percent for each stage.