Now that I am retired I am hoping to finish projects and move them on before my family has to. I dug these out, built them 25-ish years ago. Mostly the Andrea Ciuffoli OTL v8.2 with a few changes to fit the transformers I had. Operating at 150v/200ma -52-ish v bias. 44W at clipping, the driver stage clips first. An ambitious project at the time, 5 total transformers. I am going to modify to a SRPP first stage based on the tubedvr design.