I don't have them yet....karna's that is, but I am going to build them soon. I ordered the Tribute cobalt phase splitters, the Lundahl Amorphous interstages and a quad of JJ 300Bs. I have a lot of the rest already, most of the power supply components, all of the other tubes and sockets. I will need to order the output transformers still, but I'll probably wait till I finish some things up first. OPT's will likely be something sweet from Onetics.