In article , Richard (the
original) wrote:
Here's some graphic pictures to illustrate what I mean by waveforms (I
was happy to see the Smartups puts out a true sinewave vs the chunky
stepped wave of the cheaper models)...

http://www.jkovach.net/projects/powerquality/

Thanks for sharing that. Makes me feel a whole lot better about
my Smart-UPS 1500

--
Roger