Spock's homebrew frame-grabber, made from vacuum tubes, parts from a dozen old radios, and featuring a Jacob's Ladder, is also my favorite. It doesn't look too different from what tube-based logic circuits from the 1930's actually looked like.Not necessarily the coolest, and def. not the most powerful, but before we start including terminals, let's not forget the mnemonic memory circuit Spock managed to build using stone knives and bearskins.
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