danial stocks wrote: >Just how big are these SCR's you are using?? Not too huge. Type SKT40/12C. Looks like a bolt with wires coming out of it. Good for 50 amps rms, 1200 volts. Much, much bigger ones are available. I have some 300 amp jobbers if worse comes to worst! :) -Bill ______________________________________________________ Get Your Private, Free Email at http://www.hotmail-dot-com