Below some interesting videos from Potential Difference Inc (PDI) Canada which shows the effect...
These videos are published by courtesy of Thane C. Heins CEO of PDI Canada.
BI TOROID TRANSFORMER vs CONVENTIONAL TRANSFORMER by Thane C. Heins
OTTAWA UNIVERSITY BIONYX ReGenX Electric Bike Test
MIT Dr Zahn Bi Toroid Transformer Tutorial
OTTAWA UNIVERSITY - BI-TOROID DEMO
Link to The Thane C. Heins Bi-Toro´d patent
The Electric Vehicle Regenerative Acceleration (ReGenX) demo by Thane C. Heins
Link to the patent of the "Perepitea" motor/generator from Thane C. Heins
to the project pagevisits since december 29,2012