This is a test of a dual MOT spark gap Tesla Coil that I believe is in tune, however having voltage or quenching issues with ozone production around the gap. Hopefully the video will show the large turn on arcs the coil produces as they are easily over a foot long. Any comments as to how to improve the design would be greatly appreciated. Specs below: -3 MOTS: 1 for ballast and current limiting, the other 2 in phase to produce overall 4kv out. -Capacitor Bank: 5x Custom Electronics Inc. poly caps rated at 20kv DC at .1uf, only one is currently hooked up -Primary: Almost 6 turns of .25inch soft copper tubing (20ft) (9inch ID), Tuning around 1.25 turns -Secondary: 4.25x24in coil with approx 1200 turns of 24awg Magnet Wire -Topload: 22inch toroid using a 14inch cake pan and 4inch Al ducting Breakout Point scrap of Al bar stock -Ground: 8ft hand sunk copper coated ground rod