Riptor
Well-known member
Anyone who has worked on midway boards such as Galaga, super pac, some atari boards, etc have run across this problem. The custom chips used had legs that were silver plated and become brittle over the years. Its my guess that the chemicals used in the plating process is what leads to the corrosion. At some point they realized the issue and began tin plating the legs. The chips with tin plated legs are usually in great shape after all these years.
It wasn't just custom chips that had this issue, pretty much anything Texas instruments made during the time suffer from what is now refereed to as "rot leg". Striving to preserve these classic games some guys such as James (JROK) have produced modern replacements for some of the customs. This is great but what about the ones that are not available?
There are many methods to repair these chips. Post how you fix them and provide some pictures if possible. I have fixed them different ways over the years and im still trying to refine the process. Im working on a new method right now and will post some pics as soon as I get it finished.
It wasn't just custom chips that had this issue, pretty much anything Texas instruments made during the time suffer from what is now refereed to as "rot leg". Striving to preserve these classic games some guys such as James (JROK) have produced modern replacements for some of the customs. This is great but what about the ones that are not available?
There are many methods to repair these chips. Post how you fix them and provide some pictures if possible. I have fixed them different ways over the years and im still trying to refine the process. Im working on a new method right now and will post some pics as soon as I get it finished.
