Sharing thing this one before I build it. Lately I have been having fansties about some black plate 12SL7s and 12SN7s I have laying around. Mind you 6SL7 and 6SN7 will work. In fact I plan to get a couple of those new Tung Sol offering I see on the market. I have grown a love for the sound of the CCS triode stage. You see you can use it to hold even a crappy reproduction tube in it's sweet spot. Dynamic plate resistor kicks as, period! Let the beatings begin