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Mary’s current quilt project has a corner design with an essentially infinite number of 45° triangles, which another custom ruler will simplify: That’s the end result of several iterations, proceeding from doodles to sketches to increasingly accurate laser-cut prototypes: A “ruler” in quilting parlance is a thing guiding the sewing machine’s “ruler foot” across the…

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Wow, was that skin crispy
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Which suggests the Test Signal ticks along at tens-of-MHz
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The bump … shows the WWVB preamp’s 2 kHz bandwidth around the 60 kHz filter output
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The steady-state current seems to be around 40 mA
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This example … seems poorly thought out
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I like ’em a lot
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The … radio seems jammed firmly somewhere in its power-up sequence