Hello,
As the title implies, I am studying the components in the Type F keyboard. Generally there are not many components other than an 4048, a SLT and passives. By examining the PC-XT schematics it seems it is some kind of analog amplifier (a sense amplifier?) but I am not very familiarized with it. Does anybody know exactly what this is? Of course, I don't expect it to have an off-the-shelf part to replace it in case of failure but I guess it may have an equivalent circuit. Wouldn't anybody know it by chance?
Thank you very much in advance
As the title implies, I am studying the components in the Type F keyboard. Generally there are not many components other than an 4048, a SLT and passives. By examining the PC-XT schematics it seems it is some kind of analog amplifier (a sense amplifier?) but I am not very familiarized with it. Does anybody know exactly what this is? Of course, I don't expect it to have an off-the-shelf part to replace it in case of failure but I guess it may have an equivalent circuit. Wouldn't anybody know it by chance?
Thank you very much in advance