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Lolly from Germany is a creator of one of the Tesla coils that was featured in the Musical Tesla Coil Collection article last week. Lolly has now created a video that walks through the technology he used to build his device.
“Overview and demonstration of my 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.”
Via: Hacked Gadgets Forum
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Makes you wonder how much of the audio is coming from the coils vibrating and how much really comes from the arc itself.
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wonderfull. thank you for carrying on nicola teslas’ work.It is only through creative thought that new uses for technology can we make this world better.The use of this coil through modulated voltage is innovative and if you put more thought into this you will realize that at higher power and higher modulation fequencies you will begin to have a very interesting effect. I will leave the details to students of tesla but tesla wrote about different frequencies that relate to electrical transmission of power.
congratulations
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Nice work.How Does that fan keep your fet cool? Mine seems to overheat mabe because I dont have a balanced circuit yet. Keep up the good work.