> adjusting knobs recklessly on a power supply can lead to damage Well then, reck Google for buck-boost 5V. Just everybody does switchers these days * * ********** Quality PIC programmers http://www.embedinc.com/products/index.htm --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .