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A place to ask general spud cannon related questions.
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Unread postAuthor: Darkside 6ix » Sun May 14, 2006 2:20 pm

i need some ideas of how to make you own spaker. now dont start giving my **** about just getting it off of a barbeque. i already know that but just for $#!T's and giggles i really want to make my own
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Unread postAuthor: SpudStuff » Sun May 14, 2006 3:05 pm

Search on the web for HV Flyback Circuts. the other option is a stun gun circuit
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Unread postAuthor: jrrdw » Sun May 14, 2006 3:16 pm

I like the stun gun idea myself, you know thats gonna light it up ! ! !
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Unread postAuthor: dragon finder » Sun May 14, 2006 3:26 pm

use some capsiters from a few disposible cameras lined up in series.
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Unread postAuthor: jrrdw » Sun May 14, 2006 3:35 pm

Then you have to design a trigger system, with a stun gun it comes with everything you need (basicly).
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Unread postAuthor: Darkside 6ix » Sun May 14, 2006 5:55 pm

so i could just make a disposible camera stun gun and then attach thous to the 2 screws i think :idea:
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Unread postAuthor: jrrdw » Sun May 14, 2006 6:08 pm

No, i don't know of any camra that can deliver 100,00 volts for as long as the batteries will hold out. You have to take apart and reconfigure what ever device you decide to turn into your ignition source. Iwas meaning if i was going to build a combustion cannon, my ignition source would be a reconfigured stun gun. A 100,000 volt spark between 2 screws would light just about any kind of gas vapor on fire !

Pull the trigger and BANG, there she goes!!!!!!!

Instant patato salad!!!!!!!!!
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Unread postAuthor: FiveseveN » Sun May 14, 2006 8:14 pm

@pvcpsycho: If you're talking about the kind of camera stungun featured on I-Hacked.com, the answer is no. Unless you dump the capacitor into a step-up transformer, the voltage won't be high enough to generate a good spark. You'd need to make a triggered spark gap (see camera ignition), add more "capasiters", in parallel, not series (points to dragon finder), which would only give you more trouble.

From what I can tell, using a camera's circuit without a step-up transformer or cascade is overall a bad idea. You'd need to re-adjust the electrodes because of erosion and you'll need three of them.

Any sort of step-up transformer (inductive coil, flyback etc.), fed from a battery and oscilaltor will work better and can trigger several times a second.
Stun guns are probably the best option we have at the moment.
Also, what I'd really like to see on a spud gun is use of a Marx generator. They are more powerful than stun guns and just as big. The multiple spark gaps would also provide for an interesting light show.
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Unread postAuthor: Darkside 6ix » Mon May 15, 2006 7:48 pm

do you think you could send me a non-confusing link on how to do that
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Unread postAuthor: FiveseveN » Tue May 16, 2006 8:52 am

Any page might be confusing if you don't understand how these things work.
And there's plenty of them out there. Just google "Flyback driver", "Marx generator" and the like. Here's a page that should get you started: http://www.angelfire.com/80s/sixmhz/flyback.html
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