baby Tesla coil

  
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Inverter circuit to power EL backlights and fluorescent tubes, so the output is about 127 VAC as he claimed. But I want 1kV or more to make at least 1mm purple plasma as Tesla coil usually produce! (30kV is required to make 1cm length plasma). Therefore i use MOSFET IRF 840 as a transistor for high switching rate (also any IRF-named MOSFET will do, such
baby Tesla coil - schematic

as IRF741 and 630) and also transformer i use before from cracking open a battery charger to step up the voltage to more than 1kV. R2: 464kOhm or more, up to you ( you experiment it yourself). This resistor controls the frequency so different values produce different sound pitches of the plasma ( it produces buzzing sound depending on its operating frequency)



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