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T i m T i m is offline
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Default Once upon a BNC ...

On Thu, 15 Apr 2021 14:28:40 +0100, "Dave Plowman (News)"
wrote:

In article ,
T i m wrote:
I doubt any of the plug in connectors inside your computer are soldered.
They will all be crimped.


Yes, 'now', but that certainly wasn't always the way (and I'm talking
in general now) and do you think they are now 'always better' for
being crimped, or simply that they may be quicker for the manufacturer
to make?


How far back to you want to go?


Well, since we have been soldering wires to things. ;-)

And yes, in general a properly made crimp
on a connector is better than a soldered joint to the terminals.


How would you determine that though? Under what conditions that are
possibly in the minority?

Heating
the cable through soldering stresses the end of the cable.


Maybe, but would that be an issue in say my radio or TV?

snip

You'll note I'm talking about a plug in connector. Like the BNC in
question. Not the difference between something soldered direct.


Fair enough ... I was talking about both but outside of anything that
doesn't have anything in the way of cable support after the joint, I'm
not sure it would make any difference?

eg. Every connection that could be soldered (the only option at the
time) on my mobile disco *was* soldered and I never had any issues
from it (Inc 1/4" jack plugs that could also use screw terminals).
This was over ~7 years and nearly every weekend? Mobile, fitted
unfitted, packed / unpacked, carried up and down stairs and running
hot / cold regularly. I'm not sure how much 'better' crimped
connectors would have been . ;-)

However, the whole soldering (or not) issue doesn't really cover
things where the density means that it's not easy (and so reliable) to
solder by hand, and especially where re high density IDC (rather than
crimp) connections are concerned.


You are less likely to find a bad connection where the crimp has been
made onto the insulation than with a connection that was designed to
cut through it.


Maybe if I was making up BNC connectors all day and had access to the
best components and tools available I'd use crimped ... but I think
I'd be looking hard for another job (having had to make 'batches' of
cables over my career) ... ;-)


BNC crimp tools, being mass produced, are relatively cheap for a top
quality one. Unlike more specialised crimp tools which can be very
expesive.


I have a couple of h/d crimping pliers (for car battery terminals and
bigger) but I'm yet to use them, typically preferring to solder even
connectors of that size.

I do have several leads to make up to setup some portable batteries to
go with an electric outboard. Lug onto the battery terminals into a
resetable fuse and then Anderson connectors (that I think are
crimpable). I may still solder the Andersons as I can re-use them and
may well 'also' solder the crimps to ensure a good connection and stop
water getting in. Cynic or what. ;-)

Cheers, T i m