On Sat, 10 Nov 2012 06:37:04 -0600, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

fired this volley in
:

There ARE controllers that switch on the downward slope of the sine,
greatly reducung theRFI.

Have you recently priced GTO triacs and SCRs? You won't find a turn-off
style controller at consumer prices.

LLoyd
In residential lighting dimmers, Lutron turn-off dimmers are about
double the cost of the turn-on type - which is still reasonable.