Building a capacitor charging unit

I was looking for a HowTo on building a capacitor charging unit. I saw a thread on a forum a while back that said you could create a large EM Pulse by sending a huge current down a coil of wire. I was looking about wiring up a bunch of these 220uF caps from Maplin

They are the last ones on the list.

Would a few of these be sufficient to produce a large EM field, one that could fry sensitive electronic equipment. And how would i go about charging them all to the full capacity.

Also while on this topic, would this be an efficient way of generating an EM pulse, or could you suggest any other ways of doing so.

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LasVegas10 years ago
Perhaps if the electronic equipment were within a few mm of it. To create a significant EM pulse, without an atomic blast, would require much larger capacitors and a heck of a lot of them. It would also require a very, very large trasformer and some sort of dish to concentrate it into a very small area. To a search. This has been discussed here quite a bit in the past.
EthanV2 (author)  LasVegas10 years ago
So where can i get hold of giant caps? Everywhere i try only sells this type
LasVegas EthanV210 years ago
One good source is Nebraska Surplus
EthanV2 (author)  LasVegas10 years ago
You wouldn't happen to know if they deliver to the UK would you?
Goodhart EthanV210 years ago
Oh sorry, are you referring to HV caps, not high potential caps?
EthanV2 (author)  Goodhart10 years ago
Well I'm kind of new to this kind of stuff. I just want one or two big caps that can hold and discharge a large amount of electricity.
LasVegas EthanV210 years ago
No. You want enough capacitance to generate a lethal EM Pulse. Your talking about quite a few high voltage/high capacity capacitors to discharge rapidly into a large electromagnet. I expect this would cost a few hundred dollars and only work once (since it would also fry its own electronics.). I couldn't imagine a use, other then terrorism, for something like this though. If you just want to fry some sensitive electronics, spray some water on them.
EthanV2 (author)  LasVegas10 years ago
I suppose you're right about the terrorism bit. Probably not the best of idea to mess with giant EMP's But I'm still stuck on how to effectively charge and discharge one, or a bunch of caps. Will this diagram work?
crappy diagram.PNG
What is the reason for wanting to charge and discharge the capacitors? Pat. Pending
EthanV2 (author)  Patrick Pending10 years ago
I want to try and build a coil gun, but i can't without caps.
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