> Sony have the bad habit of doing negative centre plugs as well. Now that I > think about it, I can't recall anyone but Sony doing that. Atmel did it on their ICE50. Didn't have the common courtesy to put it on a label next to the plug, either. At least they included robust reverse polarity protection. Mike H. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist