Hello Pete, Did JS bias the tubes while it was at 90V from the variac? The reason I ask is that I happened to step in to Dave Friedman's when he was biasing EVH's rebuilt original. Dave had the amp at 90VAC and biased from there.
The amp will have a power switch in it that'll take it from normal to 90v and adjust bias at the same time, John is putting it in next time I swing out to the shop- he was going to put it in the other day but wanted to make some changes in its design so we just went with a regular power switch got now.
well, you know... end of debate, right? It's just a Marshall! And his crazy awesome heart/head/hands! Ed's one of a kind! To invent all that stuff, the parts, the tone, everything, at that age, it still blows me away.
it's 2 V60LP's and a SSV in the bridge, 10-14" radius, even C standard, alder body, rosewood board.. gotoh bridge with vintage type saddles... It's nitro and already starting to check! cool, haha