Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <VGREAT-at-aol-dot-com> No 15kv wont do it, you would be better off to make a series parrellel arrangement and double your voltage rating to 30KV. :-( also15kv60ma NST has an impedance of 250,00ohm so you'll want around 0.01uf total cap if youare running 60hertz primary Have a Bright Day....Sparky:-)