Can someone answer me a dumbo question

[Farlander]

I have not tried plates though I agree results between plates and tubes should be compared.  For one, plates are a lot cheaper and easier to come by.  Plates are also easily cut to the exact same size, equaling the cathode and anode's resonating frequency.  To tune tubes, one needs mathematics to determine the exact size slot to cut out of the outer tube.

An advantage to tubes, IMHO, is that they prevent electron leakage by restricting the available roundabout paths of current through water.  In a plate design, there's a lot of space for current to arc from edge to edge.  If you build the plates to fit exactly in the vessel, problem solved.

With regards to conditioning.  I tried conditioning a 'stainless steel' telescoping shower rod.  It rusted badly and produced a lot of black soot, especially when electrolyte was used.  24v 15 amps actually dissolved the outer tube metal about 1/16" on each end.  I deduced the tubes were only plated, not pure SS.  The black soot would collect on the surface then sink, and it got stuck in between the tubes.  Can anyone tell me what this is?  However I do think the ultimate goal is an oxidation layer, to further prevent amperage.

As far as resonance, I believe Meyers used pulsing to tune into the harmonic resonance frequency of the tubes, and gating  (packet pulsing) to match the resonance frequency of the LC circuit.  However I believe a pickup coil in series with the water fuel cell can be run to a comparator and used to control gating based on the circuits own feedback.  Any suggestions?

Does anyone know where to find a good PWM schematic for 1Hz - 1mHz? Preferably not using the 555 but a quad op amp like the lm324.  A gating function would be nice.  Can two LM324s make pulses and gating?