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The taps don't appear to have bben moved, in the orginal schematic they had a 1000pf as a blocking cap. I'll have to look around, might have a 470 pf laying around. Thanks for the tips. And yes, I have lots of 6A10's laying around. I had to use 45 of them in a string for a bias supply for a 35B box. Then had a switch that I could switch in an additional 14 more. Depending how I wanted it. This was on the B- supply.