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1answer
64 views

Spanning high voltage between capacitors in series

first of all thanks for your time. I've studied a lot before to make this post but theory and real world rarely make a good marriage. I have 20kVAC of spike coming from an ignition coil (the one ...
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2answers
122 views

How can I create a theatrical spark ejector?

I'm involved with an amateur theatre company (I do lighting, audio etc...) and would like to simulate a switch short-circuiting. I have also done a bit of magic in my time and have used "spark ...
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1answer
77 views

Reversing car battery's polarities

I had to charge my car battery two days ago. I used another car's battery to do so. I accidentally reversed polarities (+ with -) and vice verse. There were very strong sparks. I was trying to ...
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1answer
244 views

How to create EMI?

I want to subject my product to large amounts of EMI to see what happens. I figure I need the EMI to be broad-spectrum to be sure it will have the best chance of wreaking havoc. However, I don't ...
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1answer
155 views

We want to generate a spark suitable for igniting a potato cannon (alchohol class fuel) preferably without automobile-class coils

I assume we need about 1000v for a 1mm gap. I have a coil about 2cm with an iron core, but no idea how big L is. I have a lot of 330uF capacitors rated for 200v. What would be a clean way of doing ...
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130 views

Spark Transmitter with flyback driver and good arcs

I recently built a Fly-back Driver with a fly-back transformer and a primary voltage input of 12 volts and the arcs are about an inch long ( i don't know the exact output voltage because I don't have ...