From Bill Moore - EV World
At the bottom of this page are two diagrams sent to me by Andy Janson. They purport to be similar to the circuits that Nikola Tesla is said to have used in his fabled Pierce-Arrow electric car in the summer of 1931.
As the story goes, he had the gasoline engine removed and replaced with a 80kW electric motor. He then installed a mysterious "black box" from which rods protruded. Wires connected the box to the motor, providing it with enough electric power to achieves speeds of over 90 mph.
What was inside that box remains a mystery. It wasn't large enough to house the batteries of the time or a generator. It is presumed that it contained some type of circuitry that was able to tap into and dramatically amplify the energy that Tesla believed is all around us.
The circuitry below shows two antennas that are believed to correspond to Tesla's two rods, one for energy input and the other for output. Between them are vacuum tubes and resistors that connect to the 80 hp AC induction motor, another Tesla invention. In essence, the earth is a huge battery that Tesla believed he could inductively (wirelessly) plug into with one antenna representing the positive electrode and the other the negative.
Not being an electrical engineer, I asked our Tech Editor, Mike Brace for his analysis of the circuits. A former aerospace engineer, he noted there...
... has been a proposal for years to put a tethered satellite in geo-synchronous orbit using a conductive tether line. As the tether 'cuts' through the earth's magnetic field (due to the earth's rotation) it would generate substantial electricity. But that is an awfully long antenna. I am not too sure how he proposes to generate that much electricity from such small amount of line. Maybe the occiliations have something to do with it...
There is enough evidence to suggest that Tesla did [indeed] discover a way to generate enough electricity from a small box to drive a car around, but that secret was buried with him.
NOTE: I ran across this piece late today...not sure how old it is but it is interesting. Some of our readers are Tesla enthusiasts and have a page and thread on Phantoms and Monsters Wiki - Tesla, Leadskalin, Hutchison & Others...Lon