I've heard good things about the Van-Alstine modded Dynaco ST-70, plan to get the mod for my ST when I have time to fool with it. ST-70s are all over eBay.

http://www.avahifi.com/
http://www.netaxs.com/~vkalia/st70-rebuild3.html

But I'm far from a 'tube guy', so ask around.

SH - Any info on ST-70 mods/upgrades?

EDIT - The only gripe I have with tubes in general is the power/$$$ ratio is pretty low, but if you're using high efficiency speakers (or I guess if you have a lot of $$$) a lot of that goes away. I liked the way the ST-70 sounded back when I had it hooked up, and honestly the only things I noticed in that time were (1) it looked REALLY cool and (2) it was a bit anemic compared to my m1.5t. Nothing earth shattering there, is there?

[This message has been edited by charlie (edited January 13, 2003).]