Original poster: "Gregory Peters by way of Terry Fritz <twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au> Terry, congratulations! A good way to prevent arcing between the primary and secondary, should this prove to be a problem, is a couple of layers of 0.060" LDPE sheet. Congratulations and well done. Can't wait for the full power tests! Cheers, Greg.