Bob Boyce,
First off how you feeling? I pray to god, your recovery is going well. I know about infections, broken bones, and getting sick as we get older. Now on to some questions, if you feel up to it. I just happen to get in 22 sheets, 1/16 thick, 8 inch x 10 inch, stainless steel 316L I really want to make this very efficient. On your cells your connections are just the two outer plates. Can the spacing be smaller than 1/8 of an inch? I've seen Chris V 5 Project page, and his connections are every other one. All the positives tied together, and the negatives. I have looked at your PWM3 and will order the boards and try to put it together. I'm hoping to put this in a chevy truck 4 Cylinder S-10. I would also like to try your O2 sensor signal modifier circuit. Please Help..