Hilden-Brand Magnet Motor

[JackH]

Hello PaulLowran

[MeggerMan]

Hi Paul,

I will just request a sample of the largest cores using a variety of materials, one of which must match (or as close to) what JL Naudin used.
3 cores should be a good cross section.

I can hang off a week if you want but I don't think it will make much odds.
I live in the UK, so swapping cores in the post will mean using surface post, rusty old tub across the Atlantic.

Do you think that this design has a chance  of working out?
What sort of magnets should be used?


Regards

Rob

[PaulLowrance]

JackH,
I think you're correct, as other people have told me the same thing in private message.  Hopefully with some lucky, cross my fingers, I can pull this off.  ...  That's pretty bad they sent you a broken core. How do they expect to run a business that way?


Rob,
Man I hope you get those cores, really. From what others have said Metglas won't ship any free samples outside the U.S.  I just replied to the guy at Metglas. He said the core I selected was not available. So I just requested the same core material Naudin used. We'll see what happens. He'll probably reply no later than tomorrow and I'll let you know.  IMHO they don't give out too many samples so I could use every bit of advantage. Just don't want them to get suspicious.
Will it work? Yes, most likely if you follow Naudin's exact design, but just as with Naudin's it will be self-running. It's very important that you follow Naudin's exact process of preparing the carbon resistor.

I have several untested designs that precisely show how to close the loop ... if I can just get a hold of an appropriate amorphous & nanocrystalline core.

Paul Lowrance

[MeggerMan]

Hi Paul,
The last update by J L Naudin was 2002, shame he did not continue.
I will contact the company about the samples, like I said, paying for a full size core does not worry me.
JLN used ceramic magnets and I wonder if he would have got different results by using neodimium magnets and foil/paper gap spacers to vary the flux transfer to the C core.
I know from my simulations that a magnet that saturates the core is no use at all, it needs to be just right.
One of the issues than JLN had was the stepping down of the high output voltage and frequency, certainly 3Kv is very high for most modern electronic components to handle.
One way may be to wind 50 coils and connect them in parallel to give say 60V and this can be rectified + de-rippled and used directly to power another MEG.

Regards

Rob

[MeggerMan]

Hi Paul,
Each of the two output coils produce a sinusoidal output, that may be out of phase with each other.
If they are in phase then you could couple the outputs together and use rectification to directly drive two more MEGs or one larger MEG.
That is provided the output voltage can be reduced to a managable level.
In effect you have 3 MEGs with the output from the 4 coils of the output stage.

The only issue I can see is that the input coils of the 2 MEGs in the output stage may cause some unwanted reaction to the driver stage.

If you keep to the same size MEGs it may be possible for them all to operate at the same frequency, JLN mentioned you need to tune the setup so the output produces a good sine wave with the maximum applitude.
Who knows, with 3 stages you could have a useable output from 4 MEGs.

Another thing that could be done would be to place the output resistors (insulated) into a 1L container of water in a polystyrene box and measure the temperature rise over a period of time and calculate the energy transfered in the form of heat.


Regards

Rob