Have a look at this:
http://home.no/ufoufoufoufo/sprain/sprain.htm
Be more acurate that link is to an unsuscesfull OU device, and the constructor is sayng so.
Similar problems have the group that is trying with Bedini device, most of them are using old lead batteryes that after a while conected to the output the batteries shows increase voltage up to around 14V but that voltage does not mean that the batery is charged, actually it is a simthom that the battery is damaged and it is not able to store energy. That is why when they try to conect that batteryes to the input port the device dors not work or just run for very little time...
And it is not that is been charged with diferent tipe of electricity it is just that they are not charged at all...
When I posted the link, he had not yet the full page up with all the latest news.....
Well, I would like to know, how exactly he is charging the battery with the coil ?
This could be probably enhanced by a special
charger circuit...
Also, the airgaps are pretty big and no backcore ...so the effiency is also not too high...
Would be interesting, if he gets it to run on a charged up supercapacitor...,if it is OU the supercap will charge up and not discharge....
Not to mention that the rotor looks alot more weighty than Paul's.
Awsome stuff. I can imagine it being super efficient atleast through trial and error.