Quoted from Tomass:
Ok, I see why I ended up with 2n5550's and not 2n3904's. The 11c board has the 2n5550 transistor on q42-q49 but the 11a has the 2n3904 transistor in that same spot. Seems like it is the same but higher rated voltage, but that is only from reading other posts. I would think it will work since it is in the 11c board and perhaps even an upgrade? Am I wrong?
Thanks for any input
I think you are correct but the best guy to ask is Pinsider G-P-E (Great Plains Electronics)
Pm him. He'll know for sure.