Yo Bubba Dudes!, Wrote: I'm now working on the BFO stability. Larry, In the Y2KR3 chapter 3 pt 1, Dallas Lankford describes acircuit he used for BFO stabilization. Now if you want to be really, really, exotic - one could puta thermistor in the PTO oven and use a simple SS temperature regulator circuit.Contact me off list if you want a ski. Regards, Perrier