Inside transformers.

[BigClive]

Here's a video of the bit that goes boom when you throw the cutout in. :D

http://www.youtube.com/watch?v=tUO3o5JTGhQ

A lot less turns than I was expecting, especially for the high primary voltage.

[Mr Stubs]

Very nice.... love that "how are they made?" show..

[MI-Lineman]

Hope Swimpy watches!!! Maybe he'll finally learn somethin?:D

NO SWIMPY!!! IT'S NOT MAGIC!!!!!:rolleyes: