Plasma Speaker: Upgraded Musical Solid State Tesla Coil

Overview and demonstration of my Upgraded Musical SSTC Setup. The RF is generated with a Class-E MOSFET stage with controllable 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