The circuit is fairly simple. like Meyers patent circuit. I think the key is the holding current on the scr.
The choke should be able to commutate the scr off.
When I first did it, I used a variac with a bridge an scr and a choke.
When I would turn on the scr, it would bleed the current across the cell and lock in at full current. (then its impossible to shut it off)
The scr would blow or I would kick out the main breaker in the house. I went thru a pile of scr's I got from work.
Then I remembered I had ordered some off the internet, I put one of them in and presto, the damn thing worked, It was so fast the mains couldn't detect any current draw. I even soldered a piece of 37ga wire across a blown fuse and put that in the variac, it never blew.
What I quickly figured out was that I needed a variable plate cell to widen the gap so I could take the voltage up on the variac. But that didn't stop me, I jacked up the volts anyways. It still current limited itself, but the water started heating. (need bigger gap)
The interesting thing was that the tiny scr never even got warm. Quite bizarre I must say. You would never think it would work.
So I then learned that the frequency of the voltage needed to be adjustable for the tiny cell.
I figured that if I smoothed the DC voltage and pulsed it thru a transistor to the scr, I would be able to control the frequency and the commutation of the scr.
You can use a 555 or a 4047 with a opto coupler to pulse the voltage going to the scr . Then run another 555 thru an opto coupler to the scr, when it fires, the gate pulse from it will hold the scr down and let the pulses thru it, The choke will self commutate and keep shutting it off between frequency pulses (your 50% duty cycle frequency pulses) Very simply, you can take the Dave Lawton circuit separate the outputs and run them thru opto couplers.
Now the scr I used was a S4006LS2 from futurlec. I used the 4010 version when I pulsed the voltage. Its a very small scr TO220 case. Don't let size deceive you, because your not really drawing anything but milliamps thru it. Think of the positive choke like its a spring, when the scr closes the Self Inductance field forms around the choke,(its compressed) you want to turn that scr off just as it forms. If it shuts off in time the power supply dosent see a current draw.
If you use an adjustable plate cell, you can figure out the choke sizing and cell sizing really fast. Naturally there is going to be heat where there is water breaking apart, you can remove that with a 3-23 transformer connected to the cell also or try to burn a light bulb. It should pulse itself and run out of phase with the scr circuit, because its secondarys connected backwards. The amplitude at which you pulse the primary on the 3-23 will determine the amplitude of the overall circuit, because the 3-23 secondary is nothing but a variable resistor between the cell.
So, lets add up all the gaps on Meyers 10 tube cells?. That number will be the total gap distance on the single plate variable cell, which means he had a high voltage going to the cells. lets not kid ourselves, we can see the heavy gauge wire connected in series to that setup. Being connected in series also lowers the capacitance of the cells.
Also, if he is breaking all that water apart, where is the EEC circuit?. Its the 3-23. It also unloads the positive choke.
Overall, to run that setup on the dune buggy Circuit One needs to be figured out more precisely. That we do not have. Im guessing that it also ran on a PLL and the frequency of the voltage to the scr was adjusted automatically and power came from an alternator.
I think that the 10 cells can be eliminated to one cell and one EEC. I think Stan didn't want people to see how easy it was being done.
http://share.pdfonline.com/5ae59a0009f44562b8c325f6045f67fb/commutation.htmSee Class (A)........ Add 3-23 transformer in place of (R) .
Water becomes part of the circuit. The electrons get pulled from the water, before the electrons from the circuit can pass thru the water. The resistance of the 3-23 chokes play a very big part in this. 75ohms a piece. Does that ring a bell with Stan mentioning the resistance of water all the time. In the NZ video he even mentions re-routing Electrons around the Cell.
The 3-23 dosent give a pulse until the magnetic field is removed from it, remember its being charged up by Circuit 1. The amplitude on the primary is controlling the magnetic field, that is opposing the current thru the chokes from circuit 1.(simply put) The 3-23 core controls how much the chokes induct..
