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Forums
4hv.org :: Forums :: General Science and Electronics
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Camera taser?

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Adam Munich
Tue Mar 29 2011, 07:39AM
Adam Munich Registered Member #2893 Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242
Put a .1 or .2uF cap on there, those hurt plenty. Still, it's the voltage that causes the hurt, not the current.
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LIGHT
Tue Mar 29 2011, 06:37PM
LIGHT Banned on 4/6/2011 for unsafe, irresponsible behavior.
Registered Member #3442 Joined: Fri Nov 26 2010, 04:09AM
Location: ....
Posts: 114
Can I use a 400v cap, or will it not work as the cap being original charged is 330v?

In other words I mean can a higher voltage cap be used?
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IamSmooth
Tue Mar 29 2011, 06:51PM
IamSmooth Registered Member #190 Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
If you just want to make something that hurts you chop a 1.5v and feed it into a step-up transformer. You don't need the capacitor. I made one as a kid using a buzzer to act as a relay. It sounded like a giant bee was coming after you, and it felt like one if you got stung.

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Saz43
Tue Mar 29 2011, 07:21PM
Saz43 Registered Member #1525 Joined: Mon Jun 09 2008, 12:16AM
Location: America
Posts: 294
LIGHT wrote ...

Can I use a 400v cap, or will it not work as the cap being original charged is 330v?

In other words I mean can a higher voltage cap be used?

You can charge a capacitor to whatever voltage you want, so long as its below the maximum voltage rating. Just don't touch it to a person afterwards, in general, that's a bad idea.
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LIGHT
Tue Mar 29 2011, 07:24PM
LIGHT Banned on 4/6/2011 for unsafe, irresponsible behavior.
Registered Member #3442 Joined: Fri Nov 26 2010, 04:09AM
Location: ....
Posts: 114
I just wanted a little device that shocks you.


So anyway the maximum voltage for the cap is 330v?
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LIGHT
Tue Mar 29 2011, 07:50PM
LIGHT Banned on 4/6/2011 for unsafe, irresponsible behavior.
Registered Member #3442 Joined: Fri Nov 26 2010, 04:09AM
Location: ....
Posts: 114
IamSmooth wrote ...

If you just want to make something that hurts you chop a 1.5v and feed it into a step-up transformer. You don't need the capacitor. I made one as a kid using a buzzer to act as a relay. It sounded like a giant bee was coming after you, and it felt like one if you got stung.



OK so I have had a look from all the cap in my shed, and I have found a 400v 2.8uF and a 3.8uF 400v, they are from CFL ballasts, can I use these, because all the rest are much higher uF, one I have is 400volts 330uF.
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James
Tue Mar 29 2011, 08:40PM
James Registered Member #3610 Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506
As a few of us have said, it's really better to use no capacitor at all. The output will still give quite a shock.
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LIGHT
Tue Mar 29 2011, 08:46PM
LIGHT Banned on 4/6/2011 for unsafe, irresponsible behavior.
Registered Member #3442 Joined: Fri Nov 26 2010, 04:09AM
Location: ....
Posts: 114
Grenadier wrote ...

Put a .1 or .2uF cap on there, those hurt plenty. Still, it's the voltage that causes the hurt, not the current.

But a 2.8uF is sutable right?

And anyway without a cap will it be weak?
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Shrad
Wed Mar 30 2011, 08:15AM
Shrad Registered Member #3215 Joined: Sun Sept 19 2010, 08:42PM
Location:
Posts: 780
you can put a ceramic capacitor of several nanofarads, like those you find in power supplies, and it will be largly sufficient to give a shock if you really want a capacitor

but this is dangerous and nobody will encourage this

imagine you shock someone who is cardiac but doesn't know it? it takes no brain to imagine what could happen...
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