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The motor brushes seem to be a pair of stiff wires
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The LCD’s VEE input dumps about 1 mA to the supply, which means the charge pump must be able to pull out 1 mC/s, more or less. At 33 kHz, each cycle must haul 30 nC.
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Having my thumb right over the spot marked X, though, meant that at least I had all the pieces and could, in principle, glue everything back together.
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If you have one or two must-use Windows programs, set up a dedicated Token Windows Box.
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So it’s now patched with epoxy backed up with a small scrap of aluminum.
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A gut shot was inevitably fatal: peritonitis was not your friend.
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Challenge: given the conspicuous and obviously added-after-the-fact instruction sticker, find the HELP key on the stylin’ gray-on-black keypad.
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Pop quiz: how many safety violations can you count?
The Smell of Molten Projects in the Morning 