Original poster: "Alan by way of Terry Fritz <teslalist-at-qwest-dot-net>" <centauri010-at-attbi-dot-com> P.S. My coil is a 15kv/30-60ma NST, 23" 27 awg secondary, with 11 turn copper tubing primary, the cap is a .015-.011 (depending on 12 or 9 bottle if my math is right and assuming each bottle has equal capacitance).