I don't think that we can assume what he started with or what he ended up with .
If  in the 90s he only had a bell type device  handy   that is what he would use   for a video

If you look at the  patent .   the  tubes are held by there ends .
That is not the way that they would be held  if  physical resonance  was  what was doing the work .

For physical  resonace  the  tubes should  be held  about 1/3 of the way from the ends . ( from my  observations )

I do remember reading somewhere that   a capacitor made with tubes  can have over unity  effects .


gary

You have not read the patent. He mentions clearly that the tubes are held loosely and vibrate: (page 7) - "circular electrodes concentrically arranged around the central electrode and held loosely in the casing", page 1 - "means for holding the circular electrodes so that they vibrate", page 5 - "electrodes may be separate and retained in place with rubber blocks, the resiliency of the rubber allowing a small movement of oscillation to take place"

While searching for some vibration knowledge, I found this page:
http://www.kettering.edu/~drussell/Demos.html

It helped me understand how this heater should (and how should not) work, especially this simulation:
http://www.kettering.edu/~drussell/Demos/SHO/mass-force.html

You're missing the point. The frequency here is the 50 Hz of the main power line. Davey indeed uses the resonance, but by tunning the inside bell to the frequency he (we) already have for free. Of course, for a US device you need to make a 60 Hz resonating inner bell.

As far the outer bell, I am not sure if it must be tunned too, but the most important thing is to have the same shape and to find (by successive tests) the correct distance between the two bells, so the vibrations emitted by the inner one to reflect into the outer one and return back to it, in phase (i.e. making a stationary wave). This way an avalanche of resonance effect will occur and the energy transfered to water will rise suddenly and huge, with the same small input. This is the beauty of resonance!

All of you seem to be very sure of what is happening here. It seems to be clear but I cannot help but think about what exactly is happening here when he connects a live wire to a bell? Vibrates? OK How? The electrical sine wave in the line is transferred into the bell?

Normally we hit the bells physically to make them vibrate to give sound. Someone here said no sound is heard in the video. What sound? How do we know that connecting a live wire to a bell would generate audible sound? Maybe the altitude of the wave is too low to be heard and maybe this is one of the things that makes this gadget work.

Remember that the expert in the video said that no one can explain how it works. But we seem to have an explanation. Maybe we should not be that certain of what we have. Still what we have -though doubtful, is good enough to give it some good tries.

Someone said the outer bell is just a wall and does not need to be tuned. I agree. Its in the explanations given by the Polish prof. as well.

Finally, I believe that it is the duty of this community to solve the secret of this simple thing.

http://en.wikipedia.org/wiki/Kundt%27s_tube

Notice it says "Then the adjustable end is moved until a loud sound is heard"

That is the point we will reach when the 2 bells are the right distance from each other. In the Kundt Tube he is making the tube longer or shorter with the piston.

If there is a succesfull replication of a spherical design, yes, we should try first with it. However there's something strange : I could not find ANY other patent under the name of Peted Davey even though I called up the patent office in NZ. So how come he perfected the bell design, and is been trying to put it in production for 50 years but did not patened it???

Sometimes inventors prefer to hide the patents. It can be done by registering under another name, a cleverly hidden title etc. but in his case I believe what happened was that he never had the desire to register another patent. Patents are expensive and he has been fighting for long time and got weary and although he did not loose all hopes he probably did not want to spend money on another patent.

Some of the senior members here seem to have a lot of knowledge that can help but they do not show much interest in this topic.

As our ancestors knew, everything is based on resonance in this Universe and works by getting energy from it when resonating. Following this theories, the human being is the most advanced OU device (when he resonates at his peeks, huge quantities of energy is drawn from the Universe into the inner being, making miracles possible). Anyway, my point is that all of those traditional (meaning old and proved) theories mostly use octave harmonic for getting resonance outside the base frequency. Maybe this is just the way things work. See some complex theory regarding octave harmonic, the law of 7 and the music at Gurdjieff.

I agree totally. My research on spiritualism for the last 4 years gave the same result. You must resonate in harmony otherwise life comes onto you to correct your vibrations. Harder and harder until you understand that you must change somethings about you.

I need to point out another subject which is the octaves. Our universe (or dimension) has a certain octave range that we hear or see or handle. For example between "Fa" note and "Red" there are 40 octaves. When you tap onto the higher octaves you get the energy of the next universe (dimension).

Maybe this boiler is one setup that can generate higher octaves. I may be way off but please be gentle

Is that your opinion as well? What is your favorite topic?
My interest comes from how simple this thing is. We must
start from the simplest and build our experience from there
by taking baby steps.

no its not my personal opinion at all, just a guess from what ive seen from reading the OU forum here for the last two years and seeing the comments from to the big guys with all the stars and posts, my personal opinion about this device is that IT WORKS and should be looked into with GREAT care and being/looking like such a simple device makes it even better.

my other interests here at OU.com are the tpu and magnet pulse motors, im not looking for a device that puts out 50kw to run everything i own(house/car), i think something like this is a little way off, but something efficiant that can charge up some batteries and in turn that would be hooked up to a 3kw inverter and getting off the grid, im looking at simple working stuff that is proven to work already and adding a *charging edge* to it.

my personal idea is.....ill try and keep it short....here goes...

>>> a pulse/magnet motor that is powered by a car battery or two, the batteries would be partly charged by the magnet motor and also a solar panel array(this would switch on if the battery ran down), the motor would then be hooked up to a car alt/gen( ive seen this done on you-tube already) to then charge up a BIG main bank of batteries and that would then be hooked up to a 3kw inverter or even a higher ranked inverter depending on your power needs, you could probably step it down to use many many 12v things like a laptop computer/tv/fridge/etc , and leave the main 240v to power a heater if you had to,and for hot water using this peter davey device, then your off the grid, i cant see how to make it any more simple than this, AND its all working tech already, there is nothing fancy involved here at all that i have described<<<.