battery eliminator

Replace the original 5101 NVRAM chip.

No batttery needed anymore, the used F-RAM chip stores NVRAM data without a battery backup.

This module do work with Bally EE ( games like KISS, Startrek, Mata Hari, ...) and Gottlieb System80 (games like Spiderman, Black Hole, ...) It does not work with Gottlieb System1 games!

Note: with v1.1 the onboard LED needs to be 'bend' a bit. This will be corrected with v1.2 ASAP.

Only a few parts needed:

74HC00, 100nF capacitor, IC adapter strip, F-RAM memory ( FM16W08 or FM18W08 )

The F-RAM can be ordered at Aliexpress, e.g. here

The F-RAM has a SMD housing, but because the chip is quite big it is possible to self solder it with a standard soldering iron.

The other parts are 'standard parts', have a look at the Reichelt shop cart here