Hans Coler before WWII and during WWII created a device which was able to create huge amounts of power from magnetic vibrations. Some say that Hans created the power supply to power Victor Shaumbergers vortex drive system for secret German SS technology.
Further Files Below
Floyd Sweet (Sparky) was the inventor of the Space Quantum Modulator. It is usually better known as the Vacuum Triode Amplifier which was coined by Tom Bearden at a later date. The device used one (in early versions) or two BaFe Type Magnets. These magnets are said to have the property of self induced oscillations of the magnetic field. The Magnets were said to be conditioned at near their curie point after being heated in a toaster oven (eg. John Bendini).
Further Files On The VTA
Ashley Gray Paper