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Author Topic: electronic spark  (Read 3064 times)

Vicarious

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electronic spark
« on: August 13, 2006, 05:51:21 AM »

I am really noob at electronics, but what i want to do, is make a battery powered sparker kinda like a pezo spark, but using a 9v battery or something.  I need it to be able to work through 10m of wire. and the pezo is not powerful enough.
any help on how to make a spark is appreciated
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hollow head

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Re: electronic spark
« Reply #1 on: August 13, 2006, 08:42:03 AM »

For making sparks you need high voltage.
The common rule is a spark of 1cm=1kV
You can use a disposible camera or a invertor for a ccfl.
You can power these with a battery.
Watch out! You can realy hurt yourself (or kill yourself) with high voltage.
« Last Edit: August 13, 2006, 08:46:58 AM by hollow head »
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Mikecx

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Re: electronic spark
« Reply #2 on: August 13, 2006, 09:19:44 AM »

Watch for amperage, not voltage. Amperage is what will kill ya.
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Skylined

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Re: electronic spark
« Reply #3 on: August 13, 2006, 02:20:08 PM »

And what do you want that spark for?

As Mikecx said, amperage is what kills you.
A car spark is around 10.000V to 15.000KV.
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trials_modder

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Re: electronic spark
« Reply #4 on: August 13, 2006, 07:43:09 PM »

Yep, chop off the flash bulb from a disposable camera and replace it with your prongs.
Hook it up to some copper electrodes, place in aqueous bath salts, and ta-da! A hydrogen/oxygen gas generator.
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Vicarious

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Re: electronic spark
« Reply #5 on: August 14, 2006, 07:53:33 AM »

thanks guys.

what i was trying to do, is make a timed device to activate fireworks in a particular pattern.  ive got the timer working, and that closes a sircuit that makes the spark happen.
cheers again
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divideByZero

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Re: electronic spark
« Reply #6 on: August 14, 2006, 10:48:48 AM »

i really dont think a spark will ignite a firework, use a remote ignitor for a model rocket. or better yet a remote ignitor for fireworks.
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Sully

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Re: electronic spark
« Reply #7 on: August 16, 2006, 09:18:38 AM »

If you need a disposable camera or two to play with I can grab some that we dispose of at work.  They'll be ripped open to remove the film, but will still have the battery and flash part if it helps.
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trials_modder

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Re: electronic spark
« Reply #8 on: August 16, 2006, 10:43:13 PM »

I don't think the electric spark will generate the required heat to ignite the fuse. Try an igniter from a model rocket set. It's just two AA 1.5v batteries that run through a disposable strip that lights the fuse. In fact, you could maybe use a thin copper wire or better yet some nichrome wire to short circuit a heavy duty battery (two D cells, heavy duty will work). Heats it up like a toaster element.
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Vicarious

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Re: electronic spark
« Reply #9 on: August 18, 2006, 08:52:32 AM »

yeah i worked that out - the spark wont ignite the fuse. but, i made some ignitors with petrol (gasoline) so the spark made them catch on fire, thus creating the heat needed to light the fireworks

it was fun, the whole display was controled from a timed squence, and had an awesome effect
its the first time ive been able to watch my own fireworks - im usually running around with a lighter instead of watching.
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