Tesla Universe classic Tesla coil

James F. Corum


James and Kenneth Corum searched the historical record for clues as to how Tesla was able to generate fireballs on-demand. They discovered that operating two, different-frequency coils placed inside...


With the advent of vacuum tube technology, it became evident that high power oscillators could be used to drive Tesla coils. A variant of this approach seems to have been of great interest in early...


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