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October 14, 2012, 07:11 PM
Join Date: Apr 2010
Originally Posted by
Well, I put my APC UPS on an oscilloscope and the output is a sine wave, not a square wave - and it didn't cost close to $1000.
Sound like you got a good deal. What manufacturer and model?
Of course, if that UPS does output a pure sine wave, then the manufacturer would waste no effort defining it with a number. So what was its %THD in its specs? Maybe 2%?
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