V3 is better by all accounts. Good spotting that one. I want one of these particularly badly but can't justify it right now.<br /><br />@kaiby<br />Unsure about the location of the tube in the circuit but it is a Thompson 6111 vacuum tube. It's basically glued into place and cannot be changed. Also, there is only one other make of 6111 tubes (that I'm aware of) and supposedly the Thompson is the better sounding of the two.