I recently had a short in my cigarette lighter and now the Empeg is stuck in AC mode. With the help of my backup unit, I was able to trace the problem to a transistor. It is located below the upper right hand corner screw on the main board. It has a marking "MG A6" on it. Does any one know where I can get a replacement for this part or maybe a similar one? Any info is appreciated. Thanks.

- Tom