I have gone as far as I can with the web site, since I don't have all of my files with me to finish the technical pages. I started the PC board layout for a new amplifier design. It is a simple single-ended design that is geared for the novice builder, but has the features and sound quality of a high end amp. I was originally planning to use the 6AV5 sweep tube but I have been informed that it is not available outside the US. The new design uses any of the popular audio pentodes (6L6, EL-34, KT-88) in triode or UL mode.