Ok my fellow lowenders. I have read post after post about what tubes are best for SVT power and pre section with no real answer. Before someone says it; I know this is a subjective thing. With that in mind there are good and bad tubes and the reasions for them. So I propose we end this debate now! Post here with opinions on your favorite tubes and please go into detail, experiences live or otherwise, pic's, sound clips, places to get the best deal on tubes, 6550 vs KT88, NOS vs New, all that good stuff that us "tube heads" thirst for...tube knowledge!! So let her fly... I will start things off by asking the question: Has anyone tryed Ruby Tubes KT88 in a SVT? And, like I said, please go into detail. And away we go!