Mark Rages wrote: >>> But then it won't cancel supply noise from the mic. >> >> Right, but then it wasn't doing that before either. >> > > Why not? The real question is why you think it does? I have no idea what you're thinking, so it would be easier to discuss if you presented your argument for why the power supply noise would be cancelled. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist