Hi Folks, Does anyone have a reference for what is considered the standard "Au= tomotive 12VDC" supply ... i.e. what range of voltages/ spikes/ noise a pie= ce of equipment powered by a typical car will have to cope with? Many Thanks, Robin Bussell, --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .