what's the big diff between a 59 and a 2203/4 ? the mv ?
I was kinda thinking about doin' up a 59 or 220x based on these layouts ,there are pdf links .
using those boards cause it would be easiest .
mercury mag front and back robust specimens , seems unlikely to me that sag or saturation would get my rocks off, I would deffer to paul on that.
I was also thinking just 3 12ax7's to begin with a very modest amount of gain by way of resistor/cap spec in the preamp and then "creep up on it" maybe add a fourth 12 if I feel like it's "tapped out" or whatever , don't know ,will have to learn as I go.
I have chassis material and stuff I may build the monster on a big piece of phenolic I have so I'll have plenty of room nothing would be crowded . It's about 3'x3' and 3" thick .If I ever finish it I could squeeze it onto a plate of 6061 I have, make a proper ,transportable amp out of it. That could be a long ways off......
That's the only plan I have but I've got my grey matter on a low simmer , which is how it works best these days.