On 12/28/2010 12:04 PM, D Peter Maus wrote:

...
Quality dimmers don't produce these artifacts.
...

I have spent $1.98 on a dimmer and I have spent $30.00 on a dimmer, I
see no real difference.

However, I will admit, even CFL's generate noise (and some are worse
than others, and old, failing units can be worse of all.) I took a
weekend and placed a .001 uf, .01, and .1 -- 1,000 volt caps across all
my lights ... the noise is now insignificant ...

Regards,
JS