[Boatanchors] Multicore solder specifications?

WA5CAB at cs.com WA5CAB at cs.com
Tue May 26 13:24:33 EDT 2009


If it is Ersin Multicore and also says SAVBIT, a small amount of copper was 
added to the alloy, claimed to extend tip life.  Whether it does or not, I 
couldn't say.  But I've been using it for years.  One consequence of the 
SAVBIT alloy is that a good joint is not quite as bright and shiny as one made 
with straight tin-lead solder.  I had a tech working for me once who had 
been an AW1 and had once taught soldering (among other things) at AT A-School.  
He spent an entire morning redoing solder joints in one of our early 
pipeline inspection pig recorders, trying to get shiny bright joints.  When I 
noticed it and told him it was the copper in the solder he was using, he almost 
threw the roll at me.  :-)  

But my remaining rolls don't have the alloy marked on them, so I assume it 
is probably 60/40 (or maybe 60/39/1).

In a message dated 5/26/2009 12:02:24 PM Central Daylight Time, 
mwtallent at comcast.net writes: 
> It might be Ersin Multicore solder.  US made solder is usually sized by 
> the 
> diameter, not wire gauge.  I have some Ersin here and it is labeled 22 swg 
> 
> and Sn63 (eutectic) and has the numbers 738/397.  I prefer eutectic solder 
> 
> as it seems to make the best joint and melts easy.  Ersin is my favorite 
> solder and it has worked very well for me.  Also remember if it is Ersin 
> solder made in England, you have to solder using your left hand.
> 
> Mike T  W6MXV
> 
> ----- Original Message ----- 
> From: "Sandy" <ebjr37 at charter.net>
> To: "Glowbugs reflector" <glowbugs at piobaire.mines.uidaho.edu>; "Elecraft 
> List" <Elecraft at mailman.qth.net>; <boatanchors at mailman.qth.net>
> Sent: Tuesday, May 26, 2009 12:38 PM
> Subject: [Boatanchors] Multicore solder specifications?
> 
> 
> >I have a pound spool of Mulicore solder I'm looking for info on!  It 
> smells
> >odd when used and the flux doesn't work too well.  Numbers on end of 
> spool
> >below:
> >
> >Sn63    X32B, 21 swg guage
> >
> >then numbers: D973/815
> >
> >Anybody have any clues?
> >
> >73,
> >
> >Sandy W5TVW
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480


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