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Posted by Gene on 02/24/07 19:35
http://www.cyberpowersystems.com/CP685avr.asp
"Gene" <genes@wildblue.net> wrote in message
news:pq0Eh.12$8E1.154661@news.sisna.com...
>
> Thinking ~ getting this little $50 unit, if all else fails, I can
> use it on a PC or something...has AVR with 120VAC out,
> not sure how clean it will be though. It's cheap & folks seem
> to like it. Short on noise, but I guess I could plug another
> noise filter gizmo in-line for that...
>
> CyberPower CP685AVR 685VA
> http://www.provantage.com/cyberpower-cp685avr~7CYPR01X.htm
> http://www.newegg.com/Product/Product.asp?Item=N82E16842102044
>
> Not buying the above now, just looking:-)
>
> Gene
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> "Gene" <genes@wildblue.net> wrote in message
> news:gg%Dh.7$6D1.100451@news.sisna.com...
>> Thanks.
>>
>> If anyone would care to pick out a specific hardware
>> device(s) by make & model - I would be most appreciative.
>> I'm dizzy from reading specifications for the last two days :-)
>>
>> Gene
>>
>>
>>
>>
>>
>> "w_tom" <w_tom1@usa.net> wrote in message
>> news:1172336886.375961.307720@h3g2000cwc.googlegroups.com...
>>> On Feb 23, 6:50 pm, "Gene" <g...@wildblue.net> wrote:
>>>> Yeah, I need to do some research & find one that maintains
>>>> a high constant voltage & is extremely clean. I suspect that
>>>> line noise could play a part in my problems. Having 110VAC
>>>> attached to the camcorder has always been a noise concern
>>>> for me. It's hard to catch this with a common volt meter.
>>>
>>> The typical UPS connects electronics directly to AC mains when not
>>> in battery backup mode. This one, for example, claims a modified sine
>>> wave. And so we look at that modified sine wave. 120 volts is two
>>> 200 volt square waves with up to 270 volt spike between those square
>>> waves. Is that UPS protection? Yes. Is that a sine wave. Yes. But
>>> the UPS is the source of the dirtiest electricity.
>>>
>>> You are making assumptions rather than following the evidence. The
>>> power supply inside each component must make all noise irrelevant.
>>> But other problems may exist. One as suggested ground loops.
>>>
>>> Meanwhile the UPS as described will cost $500+.
>>>
>>> Do you have line noise? Well if the power supply inside components
>>> is defective or missing essential functions, then these line filters
>>> may replace what should have been installed:
>>> http://www.schurterinc.com/products/usa/pemfilter.asp
>>> http://www.corcom.com/
>>> http://www.cor.com/PDF/Q.pdf
>>> http://www.interpower.com/ic/p30-35list.asp
>>> http://www.interpower.com/scripts/wsisa.dll/WService=ic/p35list2.p?only_filter=YES
>>>
>>> An example of how it might be assembled:
>>> http://www.ethanwiner.com/dimmers.html
>>>
>>> Otherwise find hefty line filters such as
>>> www.surgex.com
>>> www.zerosurge.com
>>> www.brickwall.com
>>>
>>> Notice the price to fix something that must be inside that
>>> electronics power supply. But again, we are only assuming noise.
>>> Reality is probably something completely different. And again, why do
>>> they say in CSI, "Follow the evidence". You are trying to solve a
>>> problem using classic junk science reasoning. Provides are facts that
>>> others should have known before making that UPS recommendation. What
>>> does the UPS numerical specs say? That UPS typically connects
>>> appliances directly to AC mains (and the noise) when not in battery
>>> backup mode.
>>>
>>>
>>
>>
>
>
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