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From: muller@inmet.UUCP
Newsgroups: net.audio
Subject: Re: Installing a Varistor - (nf)
Message-ID: <1717@inmet.UUCP>
Date: Sun, 19-Aug-84 00:41:15 EDT
Article-I.D.: inmet.1717
Posted: Sun Aug 19 00:41:15 1984
Date-Received: Tue, 21-Aug-84 04:27:52 EDT
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#R:uofm-cv:-58200:inmet:2600098:000:708
inmet!muller    Aug 17 13:18:00 1984

**
Re H. Braude's response, I suppose you mean 60 Hz, not 60MHz!
Since 60 Hz is the nominal frequency on a power line, you don't
want to get rid of it.  However other electric appliances may
generate harmonics of it (120, 180, etc) as well as higher frequency
spikes.  Your power supply should filter out the 60 Hz and its lower
harmonics, but may not be good against the "really" high stuff, since 
that isn't NORMALLY part of the power system.

With regards my comment on computer spike-protectors, they should
indeed only keep out spikes and surges (if designed for both), but
I wonder about their ability to handle much of a load.  Except for
CRT's, computers don't really draw lots of power.
Jim Muller