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Resembling a well-worn IBM 029 keypunch ribbon
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The Navy saved them plenty of trouble and inconvenience
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One end of the twisty tube got really really hot as it failed
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It spits out bits an order of magnitude faster at 6 μs/bit
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It dissipates 450 mW, raising the temperature enough to let the PWM control kick in
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Plunk a small twiddlecap on the preamp board and tune for best picture
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Lexmark replaced the classic buckling spring mechanism with rubber dome switches
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I’m sure there’s a fancy way to do this with, surely, matrices or quaternions
The Smell of Molten Projects in the Morning 