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Date: Thu, 26 May 2005 21:33:08 -0600
From: Bob White <bob@bob-white.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: D-sub connectors - Prewired cables
Message-Id: <20050526213308.3ea93cfa.bob@bob-white.com>
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On Thu, 26 May 2005 22:14:19 -0500
Charlie England <ceengland@bellsouth.net> wrote:


> >
> Please tell me that when you said 'acid' you really meant 'acid free 
> flux for electronic wiring '.
> 
> What kind of wire won't take solder well?
> 
> Charlie
> 
> 
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> 
> 

Thermocouple wire.  That stuff just doesn't solder.  Some of them can
be silver soldered.  Many years ago I made copper/constantan
thermocouples all the time with silver solder.  They were never quite a
sensitive as a spot welded TC, but were functional.  The nice thing
about copper/constantan was that once you connected up your measureing
TC and your reference TC, you had copper wires to connect to the
voltmeter. (I was using a galvanometer in those days (late 60's.)
Later on, the reference TC was replaced with an electronic reference
which was a lot more convenient.

I'm afraid he really means acid flux.

Bob W.

-- 
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