--===============0800427426== Content-type: text/plain; format=flowed; charset=gb2312; reply-type=original Content-transfer-encoding: 7bit Is there a reverse polarity diode across the relay coil? > But how can I take that effect away? --===============0800427426== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --===============0800427426==--