This doesn't look like overunity but sure as hell looks like hydrogen production. Might get some chlorine for the laundry too. I think the salt unpolarizes the water molecules first off so that the water becomes less viscous. Water molecules form like polymer chains of 7or so molecules. That's why we get cavitation when sound waves go through it. This molcule to molecule polar-bonding gives water a high latent heat value and basically makes it a liquid instead of a gas. So now we have water molcules dissolving the salt instead of forming a circle dance. Then along comes rf and shakes the hydrogen free instead of causing cavitation in the water matrix. The process that could be going on may be something like pyroelectric charging of the nacl molecules. I know they aren't techinically crystals but could form a crystal like matrix in the solution. The rf vibration of the matrix induces charge concentration which unpolarizes the hydrogen oxegen bond. A water chemist would know alot more about this then me.
http://www.youtube.com/watch?v=h6vSxR6UKFM&feature=related
Very interesting thing. The question is, is there more energy out than in?
At least it shows, that electrolysis can be done without electrodes! But i don't want to have strong readio waves in my car, which can kill cells in the body. So this method is unable to produce hydrogen on demand but maybe can be used to produce hydrogen "offline".
And perhaps it shows, that salt-water is different from pure water!?
My guess is that the sodium in the salt-water plays a significant role. The apparatus was designed basically as a microwave oven, except that instead of the h2o molecule being shaken by the rf, this time it's metal ions as the target. If you put a piece of sodium into water, a violent reaction ensues, producing hydrogen gas. The sodium goes into solution as an ion. Perhaps the rf from this dude's machine stimulates the sodium ions in the saline solution to entrain electrons, rendering them once again reactive. The newly formed sodium atoms immediately encounter water molecules and react, thereby liberating more hydrogen. The solution would become more alkaline as hydrogen is produced.
In this scenario, the RF is causing the sodium ions to "go out of solution". Normally, sodium ions are quite happy to stay in their comfy local cluster, and would require a pretty hefty kick in the nucleus (the family protons) to be persuaded to go back to being an atom. Not only that, but they need a spare electron to pull it off, and all the electrons in the 'hood are being tightly held by stingy oxygen atoms. The effect of the RF might be to somehow lower the energy threshold for electron capture by the sodium nucleus. Another possibility is that the RF is kicking the sodium directly, giving it enough kinetic energy to tear through the clusters in the vicinity until it sweeps up an electron. At this point, it's gimped, and immediately reacts with a nearby water molecule to produce hydrogen.
Of course, we must also consider the chlorine ion in solution. If chlorine ions in solution could be persuaded to hook-up, they would liberate free electrons in the process. Perhaps the RF acts on the chlorine, but i suspect that it's easier to goose a metal ion with em radiation at radio frequencies.
All this assumes that when in solution, the ions are completely dissociated. If there are nanocrystals of the ionic salt suspended in the water, the dynamics might be completely different.
Standard thermodynamics would tell us that the energy required to generate the RF must be no less than what could be extracted from the liberated hydrogen. Of course, prevailing wisdom is often wrong.
I love thinking about this stuff. From such a seemingly simple and inert system, (water, salt, RF), we see this unexpected behavior.