Drawing power using a one-loop secondary...
sounds as though it might be along the same line as the following link. Bill Beatty's website contains many articles that, imaginative though they may be, yet his insights about electronics are fascinating to read.
He says this discovery has turned him into a believer in 'crackpot' ideas, after he has tried for a long time to be sensible enough, and knowledgeable enough, to be able to debunk such 'free energy' claims.
"ON THE POSSIBILITY THAT KNOWN PHENOMENA REGARDING THE ELECTROMAGNETIC NEARFIELD REGION CONTAINS A BLATANT VIOLATION OF FUNDAMENTAL LAWS OF PHYSICS"
http://amasci.com/freenrg/a-vectFE.html
http://amasci.com/freenrg/a-vect2.html
Excerpt:
"It's the "partial-turn toroidial transformer", but with two changes.
"We must use a particular core material so that the oscillating vector-potential field can mess with the nonlinear physics of nuclei.
We must build the magnetic-mode version, rather than the electrostatic-mode version I described in
http://amasci.com/freenrg/a-vectFE.html
We must shift the output by 90 degrees if we want to apply it to the input"
He references other articles.
I can't claim to understand it all, but seeing Treez's report that a similar concept has been put into operation, the idea has credibility.