Camera Stun gun questions

MisterSteve124 · Sat Nov 18, 2006 10:26 am

I just got a 4 AA Battery holder like this...

And it has a 9v battery connecter on top of it, so I was wondering if I have to put batteries in all 4 of the slots for it to work?

MisterSteve124 · Mon Nov 20, 2006 10:13 pm

If I use 2 330v capacitors wire together in paralell would it be able to kill someone or knock them unconsious? I was planning on shocking my friend tomorrow so I just wanted to make sure. Also I used switches that said they were only rated to like 250v does it really matter? I didn't see anything at Radioshack that was higher than 250v. I will post pics once I hook it all up to the project box but can someone just tell me if I could kill someone or knock them out with the 2 camera capacitors wired parallel.

Hotwired · Mon Nov 20, 2006 10:38 pm

Depends how the current flows.

Get two wires off the capacitors and hold one in each hand and the current goes through your arms and your chest. Which just happens to be where your heart is and its always a very bad idea to have electricity around that.

Touch both wires together with one hand and the current goes through your fingers relatively safely. It'll still hurt but its not taking a path along your chest.

Your capacitors won't knock anyone unconcious unless you do something very unwise with them.

A 250V switch is fine, its not going to be passing 330v for long and 330v is not going to jump any gaps in it.

MisterSteve124 · Tue Nov 21, 2006 2:52 pm

Well its not 330v any more because its 2 of them so its like 660v. So as long as I don't like shock someone in the chest or on their head it will be fine?

Hotwired · Tue Nov 21, 2006 5:57 pm

I'm sure you said parallel.

If you wired them in SERIES, you'll get double the voltage but less capacitance which means a less explosive spark for spudgunning.

I'm sure you've got them in PARALLEL so you can charge them properly so you've got the same voltage but more capacitance.

Anyway basically yes but I don't really see the need to stuff more capacitors in to shock someone.

I'm not a doctor so don't take my word for it being unable to kill someone if you poke them in the arm with it. I'd just be extremely surprised if it did.

MisterSteve124 · Tue Nov 21, 2006 6:44 pm

o damn it someone told me i needed to wire them parallel but i wanted more voltage so I guess I should have wired them in series.

Hotwired · Tue Nov 21, 2006 7:33 pm

The thing is you can't charge the capacitors in series...

The charging circuit does up to 300-400v? and in series the capacitors will be 600v+ whihc you won't be able to charge up to.

So you need find a way of charging them in parallel then switching them to discharge in series ...its going to be a bit of a pain really.

MisterSteve124 · Tue Nov 21, 2006 8:29 pm

damn it maybe I'll just keep it the way it is I dunno. Anyone has suggestions on a way to get it to be double the shock and still be able to charge them?

cannon freak · Wed Nov 22, 2006 8:24 pm

Well the other day I made one, just took the capacitor off a second one and hooked it in parrallel with the original one, and it delivers an amazing shock.

I would actually consider it dangerouse it hurt so badle, my head was even throbbing.

Cannon Freak.

MisterSteve124 · Wed Nov 22, 2006 8:38 pm

If you hooked it up parrallel with the other one then it wouldn't be any more of a shock than one capacitor. You would have to wire them in series.

cannon freak · Wed Nov 22, 2006 9:18 pm

No, they are both charged up, and then discharged at the same time, trust me they were both charged up.

Cannon Freak.

MisterSteve124 · Wed Nov 22, 2006 9:22 pm

Hotwired wrote:I'm sure you said parallel.

I'm sure you've got them in PARALLEL so you can charge them properly so you've got the same voltage but more capacitance.

If you wire them parallel then it doesn't make it more powerful based on what he's saying. Will someone please tell me do I need to wire them in series or parrallel if I want it do be double the voltage. Please.

cannon freak · Wed Nov 22, 2006 9:25 pm

Look at it this way, in parrall you are getting not one but two capacitors discharging. Now your looking to use this for a kind of shocker right? If so than doing i this way makes it hurt alot more (personal exsperence, right across the heart hurts like hell).

Cannon Freak.

MisterSteve124 · Wed Nov 22, 2006 9:43 pm

ok SpudStuff just told me that wiring them in series gives a longer duration of shock and wiring them parallel gives a stronger quicker shock.

FiveseveN · Thu Nov 23, 2006 2:58 pm

For christ's sake, RTFM!
You insist on working with potentially lethal toys, yet you haven't a clue of basic electronics.
Capacitors are taught in 7th grade physics over here. I don't know about you guys.
I hate to be the flamer, but all the info you need has already been posted and confirmed.