John Chung wrote .. > Just curious. Did you hook a temp probe on the capacitor and determine > the temperature the caps are subjected to while running the circuit? No I didn't, but it's a great idea. That's something I can do when/if I get the next one in. The units do run quite hot, in fact there are warnings on the device about the danger of burns from it !!! The mains transfomer and rectifier diodes are encapsulated and there is a huge heatsink on the back in an effort to keep it a bit cooler. Regards, Roger -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist