Since I have my soon to be stash coming I thought I would put this out there. The 6BR7 and the Eros are really nice, I have really, really enjoyed this tube. It does require a pin-out change or you can order a nice adapter from jamesbacik@sprintmail.com for $30, which is what I did. Custom made and he did a great job. This is really in the spirit of Bottlehead experimentation and fun, not necessarily Bottlehead frugality since the tubes cost $10 each, plus the adapter if you don