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Article #1569

Re: wand type demagnetizer

#1569
From: Mike Janson
Date: Mon, 18 Sep 1989 07:20
33 lines
2325 bytes
In article <1786@convex.UUCP> rmoore@rigel.UUCP (Robert Moore) writes:
>In article <2573@rayssdb.ray.com> iws@rayssdb.ray.com (Ihor W. Slabicky) writes:
>>I'd like two recommendations for equipment (brand names, what
>>do you have, prices, etc.) now that I have moved into the world
>>of three head recorders:

>>Tape head cleaning fluid that can be used for cleaning the heads
>>and rollers/capstans without drying out or degrading the rubber
>>parts.

>Most authorities recommend Isopropyl alcohol, at least 70% (available in 
>your local grocery store) but better is 90%, from your local drugstore.  

No!  No!  No!  Whatever you do, never use less than 99%!  Anything less
has significant water content to cause long-term oxidation of the metal
components in the mechanism (i.e. heads, capistan(s)) and thus wouldn't
be a terribly good idea.  Anyway, every drug store has the stuff and at
just over $1 for 16 fl. oz., it really isn't out of the price range for
most audiophiles.  I've heard of people using liquid freon, but can't
see any distinct advantages to this...

>The only this to watch for is whether or not the brand you buy leaves a
>residue when dry; dab some on a piece of rubber and see.  The stuff is 
>really cheap, and works well.  If you want a commercial product, use 
>Discwasher fluid.

NO!  All discwasher fluid is is DI water.  As stated earlier, water will
oxidize.  BAD NEWS!

+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=+
|Mike Janson       			  	   janson@garnet.berkeley.edu |
|"Politics is for the moment.  An equation is for eternity." --Albert Einstein|
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Message-ID: <17316@pasteur.Berkeley.EDU>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!ames!pasteur!seymour.Berkeley.EDU!c9d-ca
References: <2573@rayssdb.ray.com> <1786@convex.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!ames!pasteur!seymour.Berkeley.EDU!c9d-ca
From: c9d-ca@seymour.Berkeley.EDU (Mike Janson)
Newsgroups: rec.audio,sci.electronics,rec.ham-radio
Subject: Re: wand type demagnetizer
Summary: Rusted tape heads are not fun!
Keywords: recommendations
Message-ID: <17316@pasteur.Berkeley.EDU>
Date: 18 Sep 89 07:20:25 GMT
References: <2573@rayssdb.ray.com> <1786@convex.UUCP>
Sender: news@pasteur.Berkeley.EDU
Reply-To: c9d-ca@seymour.Berkeley.EDU.UUCP (Mike Janson)
Organization: University of California, Berkeley
Lines: 33