Hack a Day. Transistor Circuits. AA Battery Powered "Tesla Coil" There aren't many parts to this build, and most can easily by scrounged from old TVs and other electronics or be bought for cheap.
The following is needed: Bug zapper racquet: This can be purchased from Ocean State Job Lot for about 5 bucks, and is nifty for fending of mosquitos or high voltage experiments. There are probably other types of devices very similar, but I would recommend finding the racquet pictured to insure the internal circuitry is the same. Flyback transformer: Any flyback transformer will do, though the bigger the better. Don't kill yourself looking for an old non-rectified design, since there are no benefits of it for this circuit. Where There Is Charge, There Can Be Sparks! Please ensure you have JavaScript enabled in your browser.
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