On Thu, 8 Dec 2005, Vasile Surducan wrote:

> On 12/8/05, Brent Brown <brent.brown@clear.net.nz> wrote:
>> Hi Russell,
>>
>> Use a cheap UPS?
>
> Which has not a sinusoidal output but a DC one in the worst
> circumstance and a square one in the best one.

Any cheap UPS will make something that resembles a sine wave to within 
20% or better.

Peter
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