Alternator output is 230 VAC. There is a 14VDC output too but of limited capacity. / Let me ask you a silly question: do you have a battery connected to the output of the alternator? The battery will act as a large capacitor, as it does in an automobile. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist