Quote from: synchro1 on November 14, 2012, 10:32:23 AM

What kind of ordinary transformers? Silicon steel laminations have a much higher permeability then iron. Just briefly; Metglass toroids are a lamination as well. A rolled up strip. Laminations decrease eddy currents in any magnetic core material. This helps the material demagnatize from the induced electromagnetic field. 4000u is not that great compared to Metglass at 1,000,000u. This is a measure of frequency. How fast can the core magnatize and then return to it's demagnatized state per second. At 2200u it's about half the rate. Mr. Clean has an operating frequency that is around 30khz. Half the frequency will transform half the power. Those C cores are only capable of transforming around half the power of Mr. Clean's ferrite toroids. Without knowing exactly what kind of material Thane Hein's laminations are made from, it's not safe to assume anything. Where's it say they're not Mu-metal? You're right that the higher the permeability, the better the magnetic transformer core. Thane's transformer laminations could easily be made from metglass strips with the highest possible permeability. This would be my guess over soft iron.

I really don't know what type of laminates he used, i just thought that it would be soft iron, i think how he got his result is because the design of the trafo, without thinking much on permeability, iv'e haven't experimented much with this, so im just guessing, i don't remember if he ever mentioned the type of laminates he used in his videos.

@Crazycut06,

                I read somewhere Thane's laminates are Metglass. It comes in rolls. The material is very costly. They look like ordinary
soft iron. Huge difference.

you guys sure like to complicate things. As far as I can see its fairly simple (or at least should be). Mr Clean has made it obvious that he is willing to share his findings (he has already made a circuit diagram to the best of his ability, or at least for the time being).

So whats with all the discussion and guess work? wait till he can provide a definitive guide to replicating his project, then, replicate. simple. whats with all the cgi graphics of the toroid designs and possible improvements etc etc etc.... whats the problem with just replicating what he has done in the videos?'

over to you Mr Clean for further clarification on replications. cheers mate

Poit

@Poit,

         Mr. Clean reported he can't get it to work all the time. I believe increasing the contact area between the double "O" toroid edges would help. Too much contact would kill it. The output is self looped but can't supply it's own signal power. Increasing core permeability would improve the device performance tremendously. His configuration is outstanding. Higher perm toroids with the optimal reluctance ratio have the potential to help it run better and more reliably. The problem is; I can't find anything shopping online that fits the bill. I would try to cold mold a core from Nickle Zinc ferrite powder and epoxy if I had some assurance the permeability would be higher.

Quote from: synchro1 on November 15, 2012, 08:18:23 AM
I read somewhere Thane's laminates are Metglass. It comes in rolls. The material is very costly. They look like ordinary
soft iron. Huge difference.

Yes, this ferromagnetic tape is very permeable. It consists of nanocrystalline metal or amorphous metal that can reach permeabilities 1 000 000 times greater than air.
It is not that expensive any more. 20mm OD toroidal cores can be bought for $8. Large ones from Honywell for several hundred $$$.

I have seen an Annis-Eberly style self-runner made out of those Honeywell cores, functioning for 6h, but I was not allowed to inspect it.  It was an open frame design and it was obvious that no batteries were hidden inside. and no large caps were used.