Tesla coils are beautiful examples of high voltage ... [William] learned that adding a capacitor in parallel with the batteries greatly improved performance, and allowed the removal of the LED ...

Unlike most Tesla coils, [Teodor]’s design is able to run ... The resonant circuit charges a tank capacitor and places it in series with the primary coil inductor every time the relay closes ...

In this article, we explained the design process of a mini Tesla coil, covering its components, circuit details, PCB design, ...