Original poster: "J Whyte by way of Terry Fritz <twftesla-at-qwest-dot-net>" <xoom321-at-hotmail-dot-com> ...I run 2 vintage unshunted MOT's which have a secondary output of 4 kV(AC) or 1:40 primary to secondary differance. I boost the line input voltage to 260V and I get around 9,000 V. I use an old .168 uF capacitor to push my Telsa Coil to 3.2 meter streamers at 6 kVA input power.