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Hi Just looking at the system 80b machines and have a few dodgy looking chips on the cpu and by clays tests they may be the problem. The chip stated on the CPU diagram is a SN7400n i have some new chips here which are sn74ls00 are these chips suitable? Ive tried looking up the data sheets and there both on the one sheet but they mean nothing to me? Any help would be great dont even know where i got these chips from but there still in the chip tubes so i must have bought them new and would be great to use em if i can.
So it will work if it can handle the power of what ever its driving?
Hey Dean Just pulled the board out and noticed that most of the chips in it already are the 74ls00 im just going to remove any suspect looking chips and put in chip sockets so ic an change them easily if need be