Got a Harlem Globetrotters I'm bringing back from the dead. For whatever reason, I can't seem to find the sound module that was originally in it. I've got a spare 2518-32, but no spare -50. Is it possible to convert the earlier to the later? What's the difference? Also, what's the kind of chip needed for u3?

Edit: Changed 51 to 50. Do not post before coffee.

I'm sorry, it's the -50, not 51.
Lemme edit that.

What is the difference? Different resistors? There's gotta be a way to convert it, as they're so similar.

Awesome. Thanks! Just what I needed. Probably not going to be able to get the boss to spend $125 on a new board, but $25 on a conversion should pass the cost test.