The optimized design actually uses the shape of the assembled component leads to act as the primary coil. The tiny Tesla coil isn’t big and bold enough to throw big sparks, but it will light a ...

The device has a primary coil which passes a current onto a secondary coil, creating a high voltage and low current, which shoots out a lightning like discharge.

You can buy ready-wound secondary coils from the usual CN suppliers The primary side of a Tesla coil is usually a handful of turns of thick wire to handle the current without melting. This build ...

The coils are wound around an iron core. They are magnetically connected but not electrically connected. A primary voltage drives an alternating current through the primary coil. The primary coil ...

A step-up transformer has more turns of wire on its secondary coil than it does on its primary coil. Transformers will only work with an alternating current (ac) input. This transformer steps up ...