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RE: [OM] OT: need advice on soldering

Subject: RE: [OM] OT: need advice on soldering
From: "James N. McBride" <jnmcbr@xxxxxxx>
Date: Fri, 31 Jan 2003 10:27:03 -0700
I don't know how big the tab is in the case that started this thread.
Something I've done in the past is drill a small hole in the tab and then
thread the wire through the hole and wrap it back around the tab and itself
(the wire) crimp it together tightly and then solder. Even if the solder
does not adhere well to the tab the combination of mechanical contact and
solder contact can produce a good electrical connection. The wrap gives it
mechanical strength. Probably not the best solution for a purist, but it has
worked for me when all else failed. /jim

-----Original Message-----
From: owner-olympus@xxxxxxxxxxxxxxx
[mailto:owner-olympus@xxxxxxxxxxxxxxx]On Behalf Of Joe Gwinn
Sent: Friday, January 31, 2003 10:09 AM
To: olympus@xxxxxxxxxxxxxxx
Subject: Re: [OM] OT: need advice on soldering


At 10:51 PM +0000 1/27/03, olympus-digest wrote:
>Date: Wed, 22 Jan 2003 12:02:07 -0600
>From: clintonr@xxxxxxxxxxxxxxxx
>Subject: Re: [OM] OT: need advice on soldering
>
>Sears used to sell some liquid flux in a pink bottle that might help --
>if you can find some, try this:

This is the "tinner's flux" I have been talking of.

Tinner's flux is a mixture of zinc chloride and hydrochloric acid.  One can
make this by dropping pieces of zinc metal into muriatic acid (the trade
name for hydrochloric acid).  I don't recall the exact recipe, but a google
search will probably tell the tale.  The recepie has been around for at
least a century.  Muriatic acid is used for cleaning masonry, and can be
bought in many hardware stores.


>Heat the contact, then dip the end you need to solder into the liquid
>flux.  Then try soldering a jumper wire to it.  If that works, use a
>sleeve and solder the jumper to the camera.  A spot of glue on the wire,
>cover the solder joint with the sleeve, and you're done.  That's how we
>solder a lead to the battery contact of an OM-1/1n when it corrodes
>off....


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