hello there, i have a question involving a possible bad wiring i did.
i have a transformer with a 120v input, and a 120v 1.9A output. it has a total of 7 output wires, 5 of which were isolated to avoid any contact with anything.
on the thickest 2 of the wires i applied a load of probably about 30-50ohms of graphite. in between the wall and transformer i have a simple rocker switch attached to one of the input leads, rated at 125v16a/250v10a.
upon plugging the transformer in, something inside of the transformer box i built sparked quite loudly and made some smoke. i removed the plug from the wall, and everything inside was still room temp, and nothing seemed or smelled burnt or melted. the graphite was unaffected.
now i can plug it in, and flipping the switch does nothing at all. i have opened up the switch to check if its still good and it is, so that only leaves me with the transformer. i know that i connected it properly from the wall, as i removed it from an old stereo and payed close attention to how it was connected, as well as the two green wires on a different side from all the others are clearly hooked to the primary coil.
i have not removed the other wires from isolation yet to check them, but honestly im not all that interested in them, but could someone possibly explain to me if i blew one of the coils somehow, and why?