A Tesla coil is an electrical resonant transformer circuit invented by Nikola Tesla around 1891. It is used to produce high-voltage, low-current, high frequency alternating-current electricity.
Tesla coils produce higher current than the other source of high-voltage discharges, electrostatic machines. Tesla experimented with a number of different configurations and they consist of two, or sometimes three, coupled resonant electric circuits.
Tesla used these coils to conduct innovative experiments in electrical lighting, phosphorescence, x-ray generation, high frequency alternating current phenomena, electrotherapy, and the transmission of electrical energy without wires. Tesla coil circuits were used commercially in sparkgap radio transmitters for wireless telegraphy until the 1920s, and in pseudomedical equipment such as electrotherapy and violet ray devices. Today their main use is for entertainment and educational displays.
Read more about Tesla Coil: Theory, History, Modern Day Tesla Coils, Applications, Instances and Devices, Popularity, Related Patents
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“Your fate is to be what you are. As mine is to be what I am—your master.”
—Griffin Jay, Randall Faye, and Lew Landers. Armand Tesla (Bela Lugosi)