After you spend several hours trying to get the needed parts for the flyback circuit, then some time sorting out what all the pins are on the flyback, then some time wiring it up, then the transistor burns out after 30 seconds, so you get a beefer transistor and a big-ol heat sink, then figure out how to get everything mounted on a cannon without it looking like a cluster-f__k ...
suddenly piezo sparkers don't "suck" anymore.
Besides the links others have posted, this one has some info on figuring out what all the pins are. I would recomend winding you own primary so all you need to do with the pins is figure out which is the HV return.
