Those transformers put out some serious spark. I have one in the shed. It is about the size of a shoe box. I made a Jacobs ladder out of it. It would spark about 3 inches at the top. I think it would be a little more then I need for a buzz box. Something like this You are not allowed to view links.
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LoginI did order an ignition coil, 555 timer, irf640 mosfet, diodes, capacitors and resistors off ebay to try and make my own buzz box. It will have to have a 12 volt power supply to run the coil and buzz circuit. I plan on using this circuit. You are not allowed to view links.
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LoginSome of my parts are from China and will take 2+ weeks to arrive. I figure I will have about $25 in parts plus something for a case. I will use a 12 volt wall wart type power supply that I all already have several of.
Ron