Also, as a fun fact, the zero crossing inhibit voltage is affected somewhat by device temperature. It might work fine at 50=B0C with your 14V. ;-) --=20 James Cameron http://quozl.netrek.org/ --=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 .