Hey Jimmie! My Panasonic inverter microwave croaked. I got
a chance to replace the power supply! The transformer looks
just like a fancy TV flyback, and the entire board weighs
about 8 ounces. The supplies are about 50 bucks new. Panasonic
vented the ovens through the top, and the moist air flows around
the electronics on the side, causing many early failure modes.
Figured you'd be interested.

Pete