Me and some friends built this coil. It's total height is 5 meters. the donut is 2,60 by 60 cm. the coil is 65 cm dia with 1200 turns of 2.5^2mm installation wire. about 3.6 meter winding length. Cap, DR resonance 100nF, 80kv 4 in parallel. We feed it with a 180kva 10kv yz5 transformer. Rectify the lot to 16kv. ballast ensures 32kv on the cap. at 200 bps we draw 50-60 amps per fase. so roughly 40 kw. Max bps is 700. Now the question. What kind of spark length should be possible from this coil? Picture of the coil. https://www.facebook.com/photo.php?fbid=671287332969054&set=a.110176789080114.14601.100002633816524&type=1 _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla