Small Tesla coil
<a rel="nofollow" class="external text" href="https://www.youtube.com/user/AlejandroLuisGarcia?feature=watch">Alejandro Garcia</a>
CC BY 3.0
<a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=0aEmADyP9fY">TeslaCoilSmall</a>