To quote Andy Millman (Ricky Gervaise’s character in the second series of Extras). I posted an article on my main website – a DIY EMP generator. It’s purely speculative on how one might do such a thing, and possibly a very silly thing to write about.

EMP is a phenomena associated with Fusion (and I think Fission) weapons that generates a very high voltage (potential difference) and current in a very short space (in a very short time). It was only declassified a few years ago- Wikipedia has more than you ever need to know on the subject. Anything electronic would have a very rough time of it – like being hit by lightning.

Makes a bit of a change from Water rockets!