Maybe, I pulled one out (89b I think) when I upgraded my 182. I gave it to my A&P to sell if he had the chance. I think he sold my DG a while back. I am guessing he still has it. It worked when removed. What is it worth to you.
I need the power on switch knob since ours is broken. I'd like to find one that is dead already just for the parts. We could use a backup though in case ours die's. If yours works how about a couple of hundred??