1. according to my bro you cant connect 2 transformers together like i have shown unless they exactly "match" but he was pretty vauge about it all.he also seems to think a tesla coil is a dangerous thing to connect to the mains but thats another topic......
i did note that when i connected a phone charger the "wrong way" round i got a nice spark off 9V ac, but when i connected it through another transformer i got nothing, couldnt even light an led...weird eh?
2. could it be something like the induced magnectic field on one transformer cancels out the current on the other but then that would mean u cant run an electro magnet off a transformer which im pretty sure aint true.sorry to babble my im pissed off at this I JUST WANNA MAKE A BIG SPARK DAMMIT! :evil: