I asked about making a regulator before. I was told most small engine use = a shunt regulator which shunts the current to ground when the battery volta= ge is optimal. I was wondering if it would work to turn on an SCR which wo= uld shunt pulses of current to the battery until the battery voltage was op= timal. http://arts-tech-creation.blogspot.com/2011/10/voltage-regulator-for-small-= engine.html --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .