Nascom Extender Test Card
This is the rarest standard Nascom item by far. It is a test card designed to help diagnose faults on Nascom systems and was not normally available to end users. It comprises displays for address and data bus values, a probe and an 80-Bus edge connector. The board also has a smaller connector which looks like it would fit the Nascom 1 edge connector, however this is not certain. Only two are known to still exist.
Technical Details
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