@ tao, exact what i think 

p.s. did you have the circuit diagram he's talkin about ?

And here is what he wrote about the solid state resonator:

"Using the arc test from my other video...i dusted contacts with pyro clay, and arc'd through it. After a couple pes i developed a gly bead with a wonderful characteristic....Self resonating with any motor"

There is a simple test to give a reasonable idea as to weather this is feasible or not.........figure out how it could work......

With that in mind, I will attempt to apply my keen finely tuned intuitive prowess to solve this one.

In his description, he notes that he is getting a pulsed dc shot from the scope. But he also states that he uses a 200 volta capacitor in the system, and alludes to the fact that it is in series with the motor. He also states that its good to have a coil to bounce off of (the motor). Also he states that this device finds its own resonance by itself.

Well all of these things fit together very nicely in a manor that could very easily work. Let me explain

Have you ever made two contacts touch, to have a spark of power, but then nothing? You have to re make the connection, more tightly to avoid this, and have continuous power. We generally try to avoid this problem, but maybe it can be used to our advantage.

If this is happening in the silicon bead connection, we may see interesting results. He makes a connection, a spark appears, and the connection is broken. The pulse of power is sent into the coil, where it terminates, bounces back in reversed polarity. Initially the first spark was the only power delivered, now none is because the potential was not there to break the barier at the contact point. since the polarity is oposite what it was upon returning from its "bounce" we have a significantly greater potential comming back at the connection point

Now we have maybe 10 times the potential we had initially at a perfect time, when the wave hits its initial point. Now the added potential ionizes the barrier, and another pulse is made, immediately the potential drops again, and no more power is sent through the system until that second wave comes back and initiates a third.

This is not so good though for one reason, he is using pulsed DC, so even at resonance, he would be using at least whatever power the sigal was biased at. But if we stick a capacitor in the mix to filter out the DC and leave the AC, we eliminate this problem. If I were to design the system I would use a rather large voltage and capacitance way above what the motor is running at, so that its capacitive resitance is low as possible...........hmmmm he is using a 200 volt cap for a motor running under 10? sounds like he made a good choice!

This is perfectly within the relm of acceptible science, and definitly fits EVERYTHING he stated. Its a very convinient method of making a mechanical vibrator that tunes itself.
 
another interesting site to visit on this phenomenon

http://home.earthlink.net/~lenyr/zincosc.htm
here the creator has created a very simple negative resistance oscillator out of common materials in a vibratory manor, I believe this is almost exactly the same thing.
If anybody else has any theories I would love to hear them.....

Ohh and armagdn03, you are right on the money. Glad you can see it.

@ RadiantEnRg

first, thank you for coming here    i think here you are right!

i try to build the radiant receiver (or transmitter) next day ...

oh, and for really good results, one must from the get go realize that its not only about the frequency, its also about pulse durration, im willing to bet that  two very strong neo magnets placed apart from each other across the pyroclay connection will create even greater effects.the quicker the better, but try to keep it below 100ns or harmful effects tend to appear as you get closer to 100.

oh and TPU guys, why not try and create a standing wave through the coils, each coil slightly out of phase with the other to get a rotating field, however pulse the coils with pyroclay or a similar sparkgap, or correct frequency.

K here is my best video..... http://youtube.com/watch?v=0yl-5zGTBt8
Enjoy