Original poster: "David Boss by way of Terry Fritz <twftesla-at-qwest-dot-net>" <d.boss-at-Center7-dot-com> How would one figure the tank cap size for unknown current? I'm building a MOT power supply and am working on getting a pole pig. I don't know what current I'll be using so I don't know what size cap to use. Any insight would be much appreciated. Thanks Dave