Triacs? Are we talking the things found in dimmer switches?
On Wed, Aug 4, 2010 at 10:45 AM, Andy <ingraham.ma.ultranet@rcn.com> wrote:
> Just thinking, there are many possibilities for what might cause it to
> be 120 Hz instead of 60 Hz.
>
> One being something gone wrong in a full wave rectifier.
>
> Jim's suggestion of arcing on both excursions seems likely too.
>
> I suppose it might also have something to do with the zero crossings.
> Things like triacs tend to generate RFI because they switch on and off
> every half cycle, 120 times a second.
>
> Andy
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