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Stun Gun Voltage

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Stun Gun Voltage

Unread postAuthor: SpudStuff » Fri Apr 28, 2006 9:55 am

I read some where that a 300000v stungun ignites just as well as a 65000v one. I dont think this is correct. If you have a 60KV sorce makinga 10mm gap and a 300KV one making a 10mm gap the spark in the Higher Voltage one would produce fatter, hotter, and more reliable sparks. Right?

Correct me if I'm wrong.
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Unread postAuthor: Benny » Fri Apr 28, 2006 11:25 am

65 kv would make a slightly bigger, hotter spark but not by much.
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Unread postAuthor: VinnyC » Fri Apr 28, 2006 11:42 am

I'm sure technically it is better to have it with more voltage, but the difference is probably negligible. I use a 100,000 volt taser in my gun, and it has 7 spark points! Makes a very nice explosion!
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Unread postAuthor: beebs111 » Fri Apr 28, 2006 1:52 pm

Benny wrote:65 kv would make a slightly bigger, hotter spark but not by much.
no, a 300kv one would be hotter, but not by a big enough difference to notice. you could use a 700kv stunbaton, but the higher the voltage the faster it uses up batteries, and with not much difference in spark, i dont think its worth it. :mrgreen:
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Unread postAuthor: SpudStuff » Tue May 23, 2006 10:27 pm

ok youre right...............................................................................................
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Unread postAuthor: sgort87 » Wed May 24, 2006 1:20 am

Higher voltage doesn't mean anything. It's all about the current you are getting. A better current is a better spark. There's kinda a happy medium though.
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Unread postAuthor: jrrdw » Wed May 24, 2006 5:12 am

I agree with sgort87, you have to get the eletric to the points of spark. Shorter wires, same gauge of wire, the normal do's and dont's.

QUESTIONS: If you wire double the batteries in series, will the curuit hold up to the extra power?

Double the strenth?

Twice the battery life?

My inquiring mind wants to know, but don't have the means to find out???
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Unread postAuthor: FiveseveN » Wed May 24, 2006 5:25 am

If you wire two batteries in series, you get twice the voltage. I don't think the transistor in the stun gun can take it, though. It would mean twice the spark lenght.
If you wire them in parallel, you get twice the current (or half the current draw). It means they will last twice as long. I see no reason for this, since it's the same thing as just using one battery after the other has drained.
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Unread postAuthor: sgort87 » Wed May 24, 2006 9:11 pm

Hold up guys, before you fork up your stun guns and need to buy more. Stun guns made for 9 volt batteries do not like running on 18 volts. It makes them quite weak. Running at 12 volts is fine though. Just be sure to not overload it by sparking too long.

The good part about running on 12v is that you can also power your fan with that better than with 9v.
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Unread postAuthor: Killjoy » Sun Nov 12, 2006 5:19 pm

the high the voltage, the lower the amperage, which is why a spark from a lash camera is bigger then the one from a stun gun. also, when stun guns are advertised as 300,000v, that is exgerated. in reality is is proabbly closer to 100,000v or less. it would be almost impossible to fit something that could produce 300,000volts in something the size of a stun gun. the performance increase with using a higher voltage advertised stun gun would be barely noticable.
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Unread postAuthor: FiveseveN » Sun Nov 12, 2006 7:01 pm

Would you stop comparing stun gun ignition with camera ignition?
As I've explained before, they are two totally different kinds of sparks. One is made out of tiny bits of hot metal, the other out of hot gas (well, it's an oversimplification).

The higher the voltage, the lower the current, FOR A GIVEN AMOUNT OF ENERGY. Sure, 300KV stun guns are possible, but what use would one have for a 10'' spark in personal defense?
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Unread postAuthor: Killjoy » Mon Nov 13, 2006 1:16 am

the point is that because the flash is lower voltage, the amperage is higher, and it is not always bits of metal, it can also be gases (simple description) the gap just has to be extremly small because th voltage is low. the only real way to get a noticiable increase in performance is usually through the number of spark gaps and there placment.
the hotter the spark is the faster it wil ignite the propane (in a timeframe of milliseconds) but it will not effect the speed at which the rest of the propane burns.
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Unread postAuthor: SpudBlaster15 » Mon Nov 13, 2006 1:40 am

Killjoy wrote:the only real way to get a noticiable increase in performance is usually through the number of spark gaps and there placment.


Increasing the number of spark gaps will have very little if any effect on performance. Rather, the proper positioning of a single spark gap will have the greatest effect. A single gap, placed close to the rear will generally work best.
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Unread postAuthor: Killjoy » Mon Nov 13, 2006 1:42 pm

actually the more spark gaps will make a larger difference in the speed that propane burns because you are igniting the propane in at more points. its likie lighting a fuse at sveral points instead of just letting it burn from one end. also putting the spark gap in the center of the combustion chamber will have the greatest performance boost because its like burning a fuse at both ends (not the greatest comparison), but yeah the spark gap towards the end usually works well.
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Unread postAuthor: SpudBlaster15 » Mon Nov 13, 2006 2:02 pm

Killjoy wrote:putting the spark gap in the center of the combustion chamber will have the greatest performance boost


That would be true if the chamber was completely closed, as in a bomb. However, it is not, and you will get some performance increase by placing the spark closer to the rear. (More gas flow towards the barrel)

While multiple sparks work better in theory, in practice, there is no conclusive evidence to suggest that there is any benefit at all. After experimenting with a 3 gap ignition system in my smaller gun, I found that performance did not decrease one bit if I closed off the 2 front gaps, leaving all other variables constant.
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