This archive contains an alternate version of ROM 3 that I'm referring to as ROM 3B. It is not known if this is an earlier or later version, but provides better/stronger flipper performance, and is recommended over the earlier version I provided. I obtained this version from an MPU board I repaired for a fellow owner. If your flippers seem weak/sluggish, and if you find you have a difficult time making the spinner shot, I think you'll be pleasantly surprised with the flipper performance seen with this ROM version!

As with the original, it fits into a 2708 EPROM. If you don't have the ability to burn these or acquire a burned copy, there are adapters out there that allow use of a newer/larger capacity EPROM instead.

Brent Walker
bwalker@austin.rr.com