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AC Controls, Cambridge: alternating

AC Controls

“AC Controls” burglar alarm, Cambridge • AC as in alternating current, to judge by the waveform. • Spotted: Regent Street, Cambridge, Cambridgeshire, England, 2010 • Politics: In the Liberal Democrat constituency of South Cambridgeshire

1 reply »

  1. Obviously some capacitive coupling going on somewhere judging by the uneven rise and fall curves of that particular snapshot of the waveform. That probably wants looking into!

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