Is it safe to hook this transformer up directly to the AC mains? Answered
I bought an old high voltage transformer from the internet a while back. It seems to work well at AC frequencies (anything higher and it doesn't work at all), and can make some pretty good arcs. When hooked up to a power outlet with 360 ohms of resistance in series with it, it produces a 1.3 cm blue arc. When using a 30 ohm resistor, it makes crazy arcs with a bit of orange (I'm using four 5 watt 120Ohm resistors in parallel, and they still overheat). None of these tests caused the transformer to heat up at all, though. Would it be a good idea to directly hook up the transformer into a power outlet? Would it burn up the transformer and/or my house?
A couple other things about the transformer:
The primary has around 2 ohms of resistance, but I don't know anything about its inductance.
The whole thing is pretty hefty and has a fat iron core.
If you brush a wire from a 12 volt power supply across the primaries, you can get a nice spark c:
Any help would be appreciated.