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20. Plasma Speaker - Audio Modulated Solid State Tesla Coil
9 months ago
Overview and demonstration of my plasma speaker setup. It is an audio modulated solid state tesla coil. The RF is generated with a Class-E MOSFET stage with adjustable frequency.
The sound is modulated on the gate signal of the MOSFET via PWM. The sound is then emitted by the arc itself. Excitation and PWM frequencies are set with DDS generators controlled via a microcontroller board with USB interface. The sound comes directly from the soundcard of the PC. All the hardware and the software is (c) by me ;-)
73 de Florian, DB1LOL
The sound is modulated on the gate signal of the MOSFET via PWM. The sound is then emitted by the arc itself. Excitation and PWM frequencies are set with DDS generators controlled via a microcontroller board with USB interface. The sound comes directly from the soundcard of the PC. All the hardware and the software is (c) by me ;-)
73 de Florian, DB1LOL
Added by Florian Maier 7 months ago.
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