AC Power Switching (was Electronic components sources)

I'm not so sure of that last. I have seen wall warts - not many, but a few - that had three-pin plugs. Whether they actually did anything right with the ground pin (like connecting it to the shield on the low-voltage connector) is another issue, but they certainly had it. (They also tended to be physically large; I'm counting them as wall-warts because they had their mains plug rigidly fixed relative to the body of the unit, rather than on the end of a wire.) The devices I, at least, thought we were talking about were desktop-style machines with an always-on mains cord, with a power switch that breaks the two power leads but not the ground lead. So either I misunderstood something from the get-go or most of the discussion has been talking past one another. :-) As someone pointed out, peecee ATX power supplies often use soft power-off, which is a different sort of thing. Some ATX supplies also have a real power switch; some don't - I can't see anything in this discussion that's relevant to soft power switching. /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse(a)rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B