I got into an old box of Lionel trains and found that a small transformer had a frayed power cord where it goes into the unit. I'm pretty careful about messing with this kind of stuff and I think I know what to attempt to do to fix it (solder and shrink wrap). But it looks a bit discolored and I'm not sure if this thing will work after all.
It's a Lionel model 1012 transformer without the screw terminals (are those available anywhere).
I took some pictures. What do you think?