At 10:11 PM 2/2/2015, Busby Bergson wrote: > From that, I know that I'm not necessarily interested in heat >compensation or accurate tracking. So the double-transistor on Ian >Fritz's site makes the most sense to use: >http://home.comcast.net/~ijfritz/trans1.gif But that page *is* about temperature compensation. Not sure what you are asking for. Ian