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Forums
4hv.org :: Forums :: Electromagnetic Projectile Accelerators
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New to coilguns: Switching?

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Captain Proton
Sat Nov 19 2011, 04:38PM Print
Captain Proton Registered Member #3506 Joined: Sun Dec 12 2010, 02:48PM
Location:
Posts: 8
Hello been dabbling with the idea of making a coilgun and have decided to make a serious attempt, I've got some 16 gauge wire for the coil, 2x 220uF and 1x 150 uF capacitors @ 400V and i'm sure i can make a charging circuit if i don't already have something suitable laying around.

So, my question for you is: How to do the switch?

With the capacitors in question i'd ideally get about 47 joules so, would a mechanical switch suffice? would i loose too much energy / fuse the contacts?

I've also considered something in the area of SCRs but i've not been able to salvage any ( I prefer to salvage components for my little projects since we don't have radioshack and ordering by mail costs 11 bucks in shipping)

Any input would be greatly appreciated :)

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Legit_bacon
Sat Nov 19 2011, 09:07PM
Legit_bacon Registered Member #4034 Joined: Thu Jul 28 2011, 10:41PM
Location: somewhere in the Southern hemisphere
Posts: 138
A beefy relay would suffice, an scr would be more efficent but probably not by much at 50j
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Captain Proton
Sun Nov 20 2011, 04:55AM
Captain Proton Registered Member #3506 Joined: Sun Dec 12 2010, 02:48PM
Location:
Posts: 8
Allright then, Thank you :)
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