Hi there, I've been reading through the posts, and have decided to build this power supply into my bench supply which I'm upgrading - the negative pumping scheme is more clever than my own design with a separate dual supply for the op amps! However, would just like to ask a question about the R47, 10W emitter resistors for the output pass transistors. I have a couple of R22, 5W resistors handy, and believe it would be fine to use them. Since the 2N3055 transistors are parallelised, the max current through each is 1.5A. We want a 0.2V drop across he resistors, so R will be 0.2/1.5=0.13. So R22 is about right. And power wise, P=(1.5)^2x0.22=0.495W. Am I missing something? Many thanks,