Without looking at the prior thread: This >> Full wave rectifier transformers draw DC on >> each half of the secondary, And this > Only one half of the > secondary conducts each half-cycle, seem to be different ways of saying the same thing, so, if so, then you can get an answer to your query > Huh? =A0I can't even begin to imagine where you got that from. from your own response. Would that all technical questions were so easily and rapidly addressed ;-) Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .