No more battery corrosion!
Remove the risk by getting rid of the batteries!
Another quality pinball part from Tangles' Pin Parts. ( P/N Tpp-1012 )
This NVRAM module is designed for Williams System 3 to 7 and Gottlieb System 80/A/B machines
NOTE: Installing this NVRAM requires advanced soldering skills and should only be performed by an experienced board repairer.
This NVRAM works equally well in Bally -35, Stern MPU-100 and Stern MPU-200. I refer however to my other listings for parts that may be more suitable for these systems.