Do you have a web site that suggested the 2 jar method you are using.
No. I was reading in Teed:
If a plate of conducting material was placed between the anode and cathode the cell would
work as before but it would be found that on the side of the plate facing the original cathode
oxygen would be liberated, while on its other side hydrogen would be given off; that is the
plate becomes on one face an anode and on the other face a cathode. The polarisation or
back E.M.F resistance of the cell is doubled. The cell becomes two cells with no electrical
connection to the plate.
So I wanted to see if one needed a path for the hydrogen and oxygen in the solution to pass between electrodes. That is does the hydrogen at anode pass to the cathode,etc.
Looks like it does not.
From Teed also: "one ampere-hour will liberate 0.0147 cubic feet of hydrogen."
I am thinking I need a bigger power supply:
"Pro-Grade Ultra-Portable 100-Amp Electric Arc Welder - 110V" for 70$ on Amazon.com
"100 Amp Schottky Rectifier Diodes" for 7.49$ on ebay
That should be good for 30-40 amperes.