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Re: [vox-tech] power supply question
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Re: [vox-tech] power supply question

I second the motion to visit HSC. It's my favorite
parts shop. The Sacramento store is over by ARC. They
are open 9 - 5 Monday through Saturday.


--- Charles Polisher <cpolish@attbi.com> wrote:
> Peter Salzman wrote:
> > i built this system myself, so there is no
> warrantee, i'm afraid.
> > 
> > as for voiding the non-existant warrantee, i've
> already voided it.  the
> > power supply is laying open on my table.  :)
> > 
> > i'm going to fry's tomorrow to pick up a new fan
> *and* power supply.  if
> > swapping fans works, i'll return the supply.
> > 
> > this system is only about a year old.  this sucks!
> There's a big difference between ball-bearing fans
> and fans with sleeve-type (?) bearings. The
> sleeves are oiled 'for life', using a porous
> sintered bronze for the sleeve so it holds the oil
> like a sponge.  Trouble is, the oil gums up after
> X revolutions of the axle (X = $BIGNUM), I think
> the phenom is due to sulphites? Anyway, it gets
> stubborn.
> Ball bearing fans are more expensive, less common,
> and more durable if made with high-quality balls.
> The failure mode for the bearings is having a ball
> crack or chip and I think it's not too common, IOW
> the fan might run essentially forever without the
> bearings going south on you.
> You can often rescue sleeve ('journal'?) bearings
> with a teeny bit of Tri-Flow aerosol lubricant
> which has Teflon maybe and/or silicon lubricants.
> You must remove the fan for this operation, or
> risk having to replace the nearby electronics.
> Fryes must have the highest quality fans in town,
> since you'll pay about 2x what they cost anyplace
> else. Do yourself a favor if you've got time and
> visit Halted (HSC) Electronics,
> 	http://www.halted.com/contact/index.htm 
> it's a fantastic place to browse (the store, not
> the website).
> HTH,
> Chuck
> -- 
> The Feynman problem solving algorithm: 1. Write down
> the problem  2. Think real hard  3. Write down the
> answer
> _______________________________________________
> vox-tech mailing list
> vox-tech@lists.lugod.org
> http://lists.lugod.org/mailman/listinfo/vox-tech

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