I already have one of the old Johnson Matthey type microflame welders but the largest size nozzle that it uses is No. 20 with about .9 litres per minute HHO. Fine for small modelling work but I would also like something bigger.
I bought a second hand set of electrodes 24 stainless steel plate about 2 inches by 9 inches with about 1.6mm spacing and connected +-+- to be used as a single wet cell.
I have now arranged the plates in a housing to hold about 1 litre of electrolyte and connected the plates to a 20 Amp 12V battery charger but the output is too low.
Using distilled water as an electrolyte and controlling the power output of the charger through a dimmer switch connrcted to the mains supply I can vary the current up to 20 Amps at which point the voltage across the cell was 2.4 volts. I get more output by increasing the current to 30 Amps but the overload cut out on the charger then trips.
Do I need to change the plate configuration or just use more power ? I have another 20 Amp 12v charger but don't know whether it would be safe to connect them in parallel.