I would firstly advice you to go through all of stan's patents to have better understanding of the process.
There is a lot of important stuff in the US and International patents wherein in one of the patents he mentions higher efficiency of a tube setup compared to a plate setup for his proces (so I just didnt want to experiment with the plate setup on his process but I guess it works better with Bob's process). This answers your question Simon.
I could just give you everything but it could work for some and not work for some as the voltages and frequencies vary as per the WFC build and the impurities in tap water. I'm saying this coz till I made the changes when the components blew up on Dave's circuit i didnot get the right combo. The exposed surface area of my setup is much larger as compared to Dave's. He has 6 tubes of 5" lengths and mine is 9 tubes of 9" length so there had to be variations and the thickness of his pipes is different from mine...I have a gap of 1 mm between the pipes the outer tube thickness varies this gap. The gap used by stan meyer was 1.587mm (1/16").. As per stan the lesser the gap higher the efficiency.
Incase you are thinking of this gap youll have to use use three spacers of flexible foam on either end at 120 degree angles in the gap.I say fexible because you would not want any vibrations induced to be restricted as these vibrations help dissipate the bubbles from the surface. If you are not that well versed with mechanical skills, I would advice you to go for a higher gap as the space is very restricted and you might end up shorting the pipes. In longer lengths you should look for slight bends in the pipes as the pipes may get shorted. 1.5mm or 2mm gaps are also OK.
Points to note:
Check the new update of D14.pdf...theres an inductor added inbetween...its a must.
Patents show a variable resistor on the -ve side in between the WFC and the freq generator which everyone seems to have missed out (incl dave) in the '996 patent. This I had asked Dave about and he said it restricts the current going to the WFC.
My setup compared to Dave's has individual connections going to each of the 18 pipes.
Conditioning of the tubes takes a long time....SeaMonkey's explanatin stands good. Once you stop forming the brown muck you know you've conditioned the pipes and the gas generation increases at this point.
Kumaran I had subtracted 100% Faraday efficiency from the total and what you get then is the OU %. Your figure is for total efficiency of the WFC.
Kevin...Instead of trying to convert this to a plasma electrolysis reactor there is this Japanese Hokkaido University experiment which achieved some mind boggling results and was also replicated by JL Naudin...
These guys went OU with the generation of Hydrogen. Their experiment and results link
http://lenr-canr.org/acrobat/MizunoTgeneration.pdf
As per their conclusions: 'current efficiency' is 8000% to the input!!!
I'm nowhere close to where they are!!