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Forums
4hv.org :: Forums :: High Voltage
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Potato Cannon Ignitor

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ReddyK
Mon Feb 15 2010, 07:09PM
ReddyK Registered Member #92 Joined: Thu Feb 09 2006, 03:11PM
Location: Indian Trail, NC
Posts: 39
I used a B/W monitor flyback and a transister. Powered from a 9V in the handle. I used a small lawnmower sparkplug. The BBQ igniter will not work for propane. It works for butane mixtures (hairspray).
Thanks,
Steve
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radiotech
Tue Feb 16 2010, 01:05PM
radiotech Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546














One trick used by the pyroyechnique crowd is a simple 1/2 watt carbon reistor, pennies now in bags of 100. A 12 volt powertool battery will ignite the < 4,7 ohm types. Try a few values to get you ignition timing tuned.
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Zeus
Thu Feb 18 2010, 02:03AM
Zeus Registered Member #2316 Joined: Tue Aug 25 2009, 03:04AM
Location: Bendigo, Australia
Posts: 107
What about the relay wired to oscilate and connected to a 9V to 220 transformer
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radiotech
Thu Feb 18 2010, 06:34PM
radiotech Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
The thing about a open circuit initiator is it should be kept shorted exept when you *want* ignition.
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cduma
Fri Apr 02 2010, 05:15PM
cduma Registered Member #1822 Joined: Fri Nov 21 2008, 08:04PM
Location:
Posts: 300
You wouldnt need a relay oscillator with the file/brush method.
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cduma
Thu Apr 08 2010, 12:27PM
cduma Registered Member #1822 Joined: Fri Nov 21 2008, 08:04PM
Location:
Posts: 300
I bought the HV device from that website and I am going to conect it to a smallish capacitor and to an oscillating relay which should be slow enough that the cap will fully charge. Open circuit voltage is 3KV and operating voltage is 2KVAC 10mA.

Would there be any benefit to increasing the voltage any higher with multipliers?
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