Grayson, > Might MW oven caps also work? I've heard that they have an internal > resistor, so would this have a negative effect? these caps should work also. I've got a cap with a built-in 10 Megohm-resistor. This high value will not affect the operation negatively. The only problem is the (for PFC-application) low capacitance of about 1 Microfarad used in this country. Herwig