I don't know about the ICBM as a source of trouble (don't have one), but just last week I went through my wiring in search of a fairly annoying hum that had been intermittently driving me nuts for a couple of months. Not a problem with the power from the wall (a dedicated, grounded circuit running through a Panamax power conditioner) or any faulty devices, but the result of power wiring and interconnects getting into a tangle. I cleared up the clutter, re-routed a few power cords to get them away from interconnects, and the problem was solved.

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