[ARC5] Solder

[Dennis Monticelli]

63/37 is actually a eutectic solder so it goes directly from solid to
liquid without a plastic transition region.   A eutectic a little more
soldering friendly but not nearly enough for the high price you stated.
Nothing wrong with 60/40.  Just turn up your soldering iron a bit and don't
wiggle that connection while it cools.  I think a good multi-flux core is
more important than the particular alloy.

Dennis AE6C

On Sun, May 5, 2024 at 11:58 AM hwhall--- via ARC5 <arc5 at mailman.qth.net>
wrote:

> I think 60/40 was what we curmudgeons & our ancient ancestors were using
> for generations. There's a sort of excitement over 63/37 because it has a
> sharper freeze point temperature - IOW, it hardens somewhat faster when
> heat is removed. $6 for ~2ft of solder sounds like highway robbery.
>
> Wayne
> WB4OGM
>
> On Sunday, May 5, 2024 at 11:51:36 AM MDT, releazer at earthlink.net <
> releazer at earthlink.net> wrote:
>
>
> The last of my Radio Shack QQ-S-571 solder is about gone and I am
> wondering about replacement.  I only just noticed that the two most recent
> rolls of RS solder is 60/40 rather than 63/37.  I bought a little 63/37 on
> ebay, 25 inches for about $6, before I realized I was already using 60/40.
> Which should we use?
>
> I also found that desoldering WW2 vintage solder joints on the BC-348
> using a 30 watt iron was not a good idea.  I bought a higher powqered iron,
> although I have a RS variable digital temp iron, I needed two for opposite
> sides of the workbench.
>
> Wayne
> WB5WSV
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