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Capasitor block replacements, philco model 20
#7

Obviously your course of digital circuitry was short on teaching the history of digital circuitry. The first flip-flop was using tubes, and the computers in Blatchley Park were tube-based.

But if you really look at the element-based schematics you will see that a transistor and tube flops or multivibrators are very much the same.

The single difference is the size (and, of course, the size dictates the speed).





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