:: And why is it that if you touch a 120 V source, you die - yet a :: 15000 :: V static shock merely stings? Amount of current through the the body and the duration of that current, as well as the impedance that the current source has. Colin -- cdb, colin@btech-online.co.uk on 6/07/2009 Web presence: www.btech-online.co.uk Hosted by: www.1and1.co.uk/?k_id=7988359 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist