H1 Z80 Signal Watcher

Schematic

     The 1733 Signal Watcher plugs into the 1731 Z80 Backplane and provides a visual display of every signal from the 1730 Z80 Computer.  All signals are buffered using HCMOS inverters and use various colors to highlight the different signal groups, e.g. Blue for the data bus, White for address bus and so on. This allows you to visualize the operation of the computer in real time. To save a backplane slot, connect directly to the CPU card or allow for signal probing use the 1733 Piggyback Signal Watcher that has a male header mounted on top.