Gregory's Serverthe HP 10529A logic comparator is also very interesting--you install a "reference chip" and it feeds it all the same inputs, comparing the outputs to see if they match or not!
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3 comments
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Top-level
 the HP 10529A logic comparator is also very interesting--you install a "reference chip" and it feeds it all the same inputs, comparing the outputs to see if they match or not! 3 comments
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@tubetime I built a device like this for comparing two PLAs from different suppliers with the same logic, I did manage to elicit a different behaviour.