wrongdon
New member
I am working on a black pyramid which is missing the mpu.I believe it calls for the 2517-35.From what i can tell by seeing pictures,all the 2518's look the same.I am sure there are differences,but what ones can i run in a black pyramid.Are any of the stern pcb's compatible as i am gathering they are based on bally boards.I'm not afraid of making changes to the boards if need be,but i feel my search for an mpu would go alot better if i had a wider range of board numbers to look for.I'm seeing the 2518-17,,35 and 133 but havent found any 2517 anything yet.