Quoted from swampwiz:
I noticed this listing, which claims to be for a new MPU. It looks like an OEM, and not an Alltek.
ebay.com link » Brand New Dash 35 Mpu Cpu Pcb Bally Pinball All Chips Socketed
If shopping, go here instead-
No opinion on the one posted, looks familiar but can't put my finger on it.