6502 Single Board Computer Alarm System Schematics
These are the original schematics which were used to construct the 6502 S.B.C. As the board was wired the corresponding line on the schematic was "checked" and "scribbled out".....this explains the marks on the schematics ! The schematic is actually 5 sheets, each covering a specific section. Also note that there were corrections marked on some of the sheets as the board was wired.
