6.3 volts at 35 amperes. You actually need something this
big because of the low starting resistance of the output tubes.
So if it is a linear supply done right, it really is this big.
Otherwise you need a switcher.
My comment on the MPX3 things is that i don't think there is enough
people out there willing to pay for a correctly designed and built MPX3.
There are evidently a lot of people who want extremes, and balanced
extremes to warrant someone doing a correct build job on those.
Or a diy kit anyone could assemble.
OK, a couple of quick pics.
more later when i finish the tops and bottoms.