Thanks Fabio. My ears did hurt a bit but are fine now.
Kevin, i repeated and repeated and listend to the interview with Herman. I modified the sound and filterd it so it was better to follow.
Herman clearly states that he switches dc and hv on the anode.
I will stick with that for now.
The other unclear till now bla bla from the interview was about the standing waves.
I think i have now a better picture of that as well.
7.5c per second has to do with that. As well as the potentiometer in his electronic circuitboard.
You see, to amplify the electromagnetic waves between the electrodes you must tune the frequency to match it.
Not sure yet if it is the hv or dc or both that has to deal with it....
Today i will run the setup again and i will adjust the freq till i see something
Maybe make some scope picture too and a video of it all.
cheers