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  • Wow, this is exactly what I was looking for, thank. I have one question..since this technique is not for charging the battery, is polarity important? The reason I ask, is that I've used hundreds of disposable cameras for various purposes, they're a wonderfully simple, effective and easily accessible little high voltage source. The problem is that they are getting hard to find because most places like Walgreens etc photo departments no longer develop them. What I use now is the capacitor and charging circuit from an electric fly swatter. They're only $3 at harbor freight. Would that work? If so, I may go bigger, just for fun and use my salt water's a

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