The International Open Source Hydrogen On Demand Builders Network.
Alan, I'm not so sure about the dc motor controllers due to the low frequency they use. I think it was ZFF who found that production improved vastly with freq. over 10k as compared to 200-500hz. I agree with the statement about bubbles. I've seen fog look cool but produce very little, and my own units appear to slow down the bubbles when producing more. They're actually just making bigger bubbles.
We had a video on HHOinfo that theorized the frequency harmonic for HHO, but the problem is that it's not constant for some reason; it moves around.
Bob! Try and reverse the polarity on your unit before changing it around and retest it. You may be surprised.
If your unit is using the 0-rings, then I'd see no reason to make it a series unit. That thing is getting some amazing output as it is!
Just a note to Bob. I nicknamed your style cell a "sandwich", since it's stacked thin in layers!
A Wendy's Triple has as much value as a Series Cell Generator!!! Yum!Gary that's not a sandwich but a coronary waiting to happen.