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Hey! Ive been planing to make a potato cannon and thinking of making my own sparking circuit. well im having a switch that can change from 3 modes with 4 pins, don't know which one is 1. pin. but I'm thinking using a battery box thats connected to the switch, when its set on 1 its off when its set to two its charging the dual rubycon. And when the switch is set to three it releases its power from the rubycon to make a spark :D

but how to hook this up so its working?

Does anyone know a circuit that does this?

I think you need to post more solid info before anyone can offer any useful help.

At the very least a brief technical description of what you want to do, the electrical spec (voltage source, current limits etc) and a block diagram.