In an earlier contribution to this discussion,
Christian McArdle wrote:

Thanks - but does any this stuff work with a *mains* voltage fan -
which is what I've got?

I think the idea is that at 72p, you could possibly purchase a new DC
one?


True - but I've just invested rather more than that in a nice mains fan,
with proper bearings - so that it doesn't make a lot of *mechanical* noise
like cheap fans do.

--
Cheers,
Set Square
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