Hello, I am in the process of building my first coil with the following specs: secondary: 4 inch pvc with 900 turns of 24 awg wire. primary: 15 turns of 3/8 copper tubing input xfmr: 12 kv 30 ma I plan on starting with salt water caps and would like advice on the best configuration to achieve capacitance close to 066 mfd. I am also not quite sure how big to make the torrid for my top load. Any advice would be greatly appreciated. Thanks, Mike