Thank you very much.
I guess this is the voltage over the WFC? It seems a bit strange, as the top ripples, which should come from the AC-wave look more rectangular than tops of sines, but this could well be due to parasitics. It looks like the SS wasn't in such a good shape anymore, as the base electrode potential is quite high.
Interestingly I just woke up and thinking about why he isolated the circuit and came upon the idea, that in the "8xa circuit" he didn't made the switch on/off at the resonance frequency, but rather the rectified AC was already on the resonance frequency of the circuit.
For what I stated above is surely only true if the Ton/Toff is at the resonance frequency. But it surely also works, to have an unrectified AC to get the coils into resonance. To get them into resonance it is only important, that the input voltage gets higher and lower exactly at the resonant frequency. Surely a square wave would be best, but maybe too complicated for Stan to produce in this early stage.
But this would have been a total pain in the a s s to make the circuit so, as to exactly hit the resonance frequency with a fixed frequency input.
Why did I come upon this?
I was lying in bed and asked myself: Why did he isolate the circuit. There must be a reason for this. The only reason I could get was, that the overall potential might change during a Ton-Gating sequence, but this you could only measure if you don't make any earth connection with your scope to the cell.
I came upon another functional Hypotheses:
Actually this one, I already had a long time ago, but threw it away as I just couldn't image how one could make the corresponding circuit (if it is doable at all), but it now resurfaced. It is interesting to note that in an electrolysis process the splitting of the water molecule needs a different amount of energy at the 2 electrodes. The final reaction at the cathode (Hydrogen production) needs almost no potential and is therefore actually very "cheap" to produce. But the anode-potential is the real bugger, the oxygen atom in the final OH- molecule just wont let go the last hydrogen atom. There a lot of energy is wasted. This is why in optimizing conventional electrolysis processes, one focuses a lot on minimizing this potential.
But what if one creates a process which just focuses on making an asymmetric electrolysis. Namely we just actively try to get a cathode reaction. But this would obviously result in a rise in potential of the water. And here's the problem. Usually if I still try to get even more cathode reaction, I need more and more voltage (which means more energy), as the water already has that voltage. But if there would be any way, that the actual circuit would also rise in potential together with the water bath, it would work. You would get very cheap hydrogen. But there surely would be a point, where the potential cannot be heightened anymore, due to losses to the environment (therefore with this process it would be extremely important to heavily insulate the WFC). When one then does finally Stop the process, the water potential would come down again, and the anode reaction could now take place (for free, as no energy is needed in this step). This could be the reason for gating.
But I don't think this is really a reasonable idea, as if it would be really possible to make such a circuit you would additionally easily be able to produce electricity out of it for free (at the final anode discharge). Strictly speaking this would be a charging of a capacitor with only a linear dependency to voltage, in relation to the actual energy in the capacitor itself which is square to the voltage. I wouldn't see where here the energy should come from, therefore I don't think it's a reasonable theory.
Sorry, this got a bit offtopic in here. But hey here it's now 5 o'clock in the morning...