Dear Group, I built a HF VTTC based on this circuit: http://4hv.org/e107_plugins/forum/forum_viewtopic.php?126638.0 I added a charging reactor in between the hv out from the doubler and the resonator. It smooths the output and reduces the noise considerably. I was wondering is there is a way to ground the low voltage side of the coil? I was hoping grounding the coil would improve performance and reduce EMI. I am tempted to use a vacuum capacitor between the bottom of the coil and rf ground. Will this work or is there another circuit that will allow me to ground the coil I can use? You can see my setup here: http://youtu.be/4PvLM8yMucI Cheers! -Wil _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla