yea, according to this patent you definitely did not have the right ratio of dielectrics to get the stress focused on the water. consider the ceramic with the dielectric value of 3500 as the "resonant charging chokes" used to restrict amps and let voltage do the work. plastic might have a dielectric value of 2 to 10
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Donald , you do the material research and come back to us with something physical that we can buy for reasonable price and we will try . Ask these guys how much it will take to coat a tube with this ok ...
This ceramic you speak of , find it , for cheap . And tell us how to install it without some complicated process .
I have never heard stan mention any particular coating besides , and Dynodon has told me that the tubes were bare .