mystery part

[emstin1]

I have what appears to be a voltage regulator, but I can't seem to find any info on it.  It has three pins, and ( I think) a heat sink on top.  The body is a black rectangle with the Motorola logo printed on it.  It also has 90 with 22 underneath. What I think is the part # is printed along the bottom edge, which is TE2482.  Does anybody know what this is exactly?  Any information would be greatly appreciated.  I have a feeling that someone is going to find the info easily on Google, and I'm going to feel bad for asking such an obvious question, but nothing ventured nothing gained...or something.

[Mike Burgundy]

Only thing I come up with is NTE2428 - different manufacturer. What's it in?

[EATyourGuitar]

NPN