>
> So I read. The UK site I posted claims, and appears to back it
> up with survey evidence, that some hums are caused by or linked
> to the national power grid. If really true, that poses quite a major
> problem for the sufferers. Although the site includes a petition to
> "stop it", I don't see anyone running to change the whole national
> grid system. Not a minor undertaking



Edison giggles quietly in his grave.
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