No more battery corrosion!
Remove the risk by getting rid of the batteries!
Replace 6264 Memory with this NVRAM Chip. Supplied with an IC Socket.
Suitable for Data East, Stern Whitestar, Williams System 11 and Williams WPC Systems.
This upgrade required advanced skills in many cases. Some systems will require changed jumpers or de-soldering the existing memory.
See notes here on replacing the 6264 memory on a Williams WPC System.