I found this little gadget in one of my spare rooms in a bunch of old electronics and cords. I didn't make it and I don't know who could have. I've tried identifying it and nothing.
I put a little power to it and it makes a whinnying sound. I will take pics of it from outside then the board. Someone went to great lengths to close it up used a thick black composite maybe jb weld? I had to shave down and cut into the end in order to open it.