Transformers

[rodrigopires]

Hi, i have two cores that i took out of some motors and i'm wondering if i can use them to make some transformers, or other things. What can i do with them? Maybe cutting the edges in the center just to have a regular surface? Any ideas?

Thanks! 

[Cliff Matthews]

I think these formats will end with meager results and waist some good magnet wire.
http://en.wikipedia.org/wiki/Magnetic_core
Hack apart an old microwave oven and borrow a die grinder to break the welds - now that's a core.