It would be nice to know who has an 8XA and it's configuration. Variac / no-variac, SCR / Transistor / FET, What type of choke and what type of cell it's matched up to.
I'm gathering parts to build one.
Is there a high side FET circuit, I couldn't find one.
Has anyone used an ir2110 driver chip?
A while ago i tried to pulse some thyristors rated 600v\800v\18a, and using mains voltage 220v,they poped up like popcorn.I believe Don when he says that the 8xa is not a resonant sistem,because the chokes are to small and the tubes are to large,so they dont mach.The only thing is that you dont have a voltage drop like the resonant sistem,which is a dead short at any freq.Happy new year to all!
I agree that the 8XA system was not low current. I have attached one of Stan's documents that shows the plate cell drawing 4-5 amps. Now this being said, If the reports are true and the cell was not getting hot, shows the water cell was acting as a true capacitor. With tap water, I still wonder how the process starts.
If you look at the attached document, you will see that Stan was on the X1 range and calls out 10hz. Base frequency would be 120hz so this configuration should work with the SCR (even if it doesn't work at the upper frequencys). The only problem is Stan was using plates that he could adjust (tune) the spaceing. I haven't figured out an easy way to build a flat plate 36sq in cell that is adjustable.
This diagramm was found at stan meyers house.
It accords to the tube cell.
Look and calculate:
Electrolyses: 15,83 cc/hr @ 8,8W = 0,55W/cc
Voltage Potential Work: 46,6cc/hr @ 55W = 1,18W/cc
IMHO the diagramm shows a process which is worse than electrolyses. This would correspond to the fact, that tap water is a bad electrolyte.
At 12,5V the water keeps cool to the touch....
Also in your posted diagramm the COP is even worse.
for nearly the same amount he needs 80V. 48,7cc/hr @ 360W = 7,39W/cc