>      Since most (all?) switchmode power supplies immediately convert the
> incoming AC to DC with a bridge rectifier they should work fine if you
> supply them straight DC.

Yes and no. Most have a 115-230 volt selector switch. In 230 volt mode,
you use the full bridge rectifier and develop 300+volts. In 115 volt mode,
the neutral is connected to the center of 2 big capacitors to achieve
voltage doubling, and you get 300+ volts.

Not to say that some power supplies won't wake up with only 125VDC applied
to them, but don't expect any real power out of them.

Cheers,

Bob

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