The Tesla Coil – Make Your Own Lightning

The idea is simple, really. Make a transformer with a huge step-up ratio, (secondary winding has far more turn than primary winding), and tune both windings to resonance at the same frequency. If, under these conditions, a pulse is applied to the primary winding (for example, by means of a spark), the voltage across the secondary will rise to level at which substantial discharges can […]

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