[rescue] Power question...

Aaron Finley arnach at arnach.com
Sun Jan 11 02:27:22 CST 2004

Dave McGuire wrote:
> On Jan 11, 2004, at 9:42 PM, Nathan Raymond wrote:
>> I realize this is somewhat off-topic, but I figure you folks are some of
>> the most experienced people to ask this question: what would cause
>> computer monitors (any monitor, hooked up to any computer) to jiggle at a
>> refresh other than 60Hz?  I'm talking serious jiggle, and at any refresh
>> above 60Hz.  This has been happening since I moved to an apartment in
>> Cambridge, MA a few months ago, and it happens to all my monitors (four
>> different ones, three different brands), hooked up to any computer.  I
>> only get a stable image at the eyestrain causing, headache inducing
>> refresh rate of 60Hz.  I've tried outlets on either side of room, no
>> difference.  I don't have any sort of UPS, just some high quality power
>> strips (and this happens on more than one power strip, so I know it's not
>> the strip).

Try watching your power on an oscilliscope, probably crap riding all 
over it.

You may want to pick up a UPS that regenerates a sine wave, APC smart 
ups-es come to mind, and are cheap on Ebay.

-- Aaron

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