[TR] Wire terminations

[Paul Tegler]

We're saying the same thing Randall, ...solder IS the prime contact to 
make the electrical connection. One would not rely on just a bent 
resistor lead through  a circuit board hole to retain it's electrical 
connection without soldering it.

ptegler

On 1/11/2019 4:29 AM, Randall wrote:
>> I used to like to pre-tin crimped connections, but have since
>> learned it is not really a good idea.  The problem is that
>> solder can "cold flow".  The solder will actuall move away
>> from the crimp and cause the joint to loosen over time.
>> Crimping, done properly is good.  Solder is also good, but I
>> would not recommend both.
> FWIW, that's part of the sequence I gave (and use).  Do the crimp first,
> then only solder the tip of the wire where it sticks out on the other side.
> You don't want to use so much heat that the solder wicks all the way through
> the crimp joint.  This also ducks the problem where the surface of the
> solder forms a stress riser that will concentrate any vibration and cause
> the wire strands to break.
>
>> The ysay never rely on solder as the electrical connection. It's only
> meant to retain the mechanical connection
>> of the electrical contact. point.
> I was taught exactly the opposite: solder is an electrical joint not a
> mechanical joint.
>
> -- Randall
>
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-- 
Paul Tegler
ptegler at verizon.net  www.teglerizer.com