Hi All, I want to use a Triac Output optoisolator like the MOC 3023 to turn on/off 110V ac supply to a load. Do I just apply a dc voltage to the input diode to turn on the output triac (so that ac current will flow through the load) and apply a 0V to the diode to turn the triac off (no current flows through load)? Thanks in advance! John -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist