Original poster: "J Whyte by way of Terry Fritz <twftesla-at-qwest-dot-net>" <xoom321-at-hotmail-dot-com> Whats better, a 90 or a 180 degree primary coil??? Or does it even matter? I was planning on using 10 GA grounding cable for my coil in some arrangement. _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn-dot-com