No more battery corrosion!
Remove the risk by getting rid of the batteries!
Replace 62256 Memory with this NVRAM Chip. Supplied with an IC Socket.
Suitable for Williams WPC Systems strapped for 62256 (U8)
Suitable for WhiteStar U212 (No soldering needed)
This upgrade required advanced skills on the Williams WPC systems. 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.