The same thing occured to me last night as I was thinking about it. Seems pretty obvious now-
"What would account for the original trap not being able to get maximum brightness out of the 10BP4?"
The fact that it isn't working properly
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It seems like a lot of us are working on 630ts' at the moment. Is any one capable of giving me some reference measurements?
I've got -92V on the green side of the focus coil with the focus control set for the sharpest focus, -67V on the yellow side of my focus coil, -56v on the red side of my ion trap, and on the other side of the bleeder resistor, where the schematic shows -18V, I have -21V.
My 185A section of the bleeder resistor is off from spec. I have a different version of the bleeder resistor in my set, it is only 160ohm instead of 230ohm. That puts it off by more than 20% so perhaps my problem is that resistor.