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Larry W4CSC
 
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"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

Yup! But I have a friend that soldered all his battery connection with a
small blowtorch as you mentioned.


My little MAPP gas torch did a fine job heating Lionheart's battery
terminals for soldering. There was very little wicking because the #0
cable strands are quite a bit larger than hookup wire strands. The
soldered connection is a neat, very strong and very low resistance
connection. You can pick up an L-16 by picking up its cable with this
solder connection. Try that with your crimp connector.

Soldering maximizes the contact surface area as far as it can be. Crimping
only makes contact with a tiny outside edge of the outside conductors only,
nearly a point contact but with some length down the hole.

Cold solder joints are the ones that "crack"....not properly soldered
joints which are stronger than the wire, itself.

  #2   Report Post  
Doug Dotson
 
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"Larry W4CSC" wrote in message
...
"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

Yup! But I have a friend that soldered all his battery connection with a
small blowtorch as you mentioned.


My little MAPP gas torch did a fine job heating Lionheart's battery
terminals for soldering. There was very little wicking because the #0
cable strands are quite a bit larger than hookup wire strands. The
soldered connection is a neat, very strong and very low resistance
connection. You can pick up an L-16 by picking up its cable with this
solder connection. Try that with your crimp connector.


Picking up a battery by the cables isn;t a terribly good practice, although
a good crip should be able to do it as well.

Soldering maximizes the contact surface area as far as it can be.
Crimping
only makes contact with a tiny outside edge of the outside conductors
only,
nearly a point contact but with some length down the hole.


Actually, the conductors are flattened when they contact the inside of the
connector and each other giving quite a bit of contact area.

Cold solder joints are the ones that "crack"....not properly soldered
joints which are stronger than the wire, itself.


Not according to the research I have seen in the past. Perhaps that has
changed in the past few years.


  #3   Report Post  
Larry W4CSC
 
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"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

Actually, the conductors are flattened when they contact the inside of
the connector and each other giving quite a bit of contact area.



Still, no matter how hard you crimp, the terminal only makes contact with
the very edge of the outer conductors, no matter how much pressure you put
on the inner conductors. Soldering makes contact with every strand on all
the surface area that's exposed......and properly soldered, prevents
exposing covered copper to seawater and condensation corrosions.

  #4   Report Post  
Gary Schafer
 
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On Tue, 29 Mar 2005 19:57:15 -0500, Larry W4CSC
wrote:

"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

Actually, the conductors are flattened when they contact the inside of
the connector and each other giving quite a bit of contact area.



Still, no matter how hard you crimp, the terminal only makes contact with
the very edge of the outer conductors, no matter how much pressure you put
on the inner conductors. Soldering makes contact with every strand on all
the surface area that's exposed......and properly soldered, prevents
exposing covered copper to seawater and condensation corrosions.


with a properly crimped connector the wire becomes one solid mass
throughout.

regards
Gary
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Doug Dotson
 
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"Larry W4CSC" wrote in message
...
"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

Actually, the conductors are flattened when they contact the inside of
the connector and each other giving quite a bit of contact area.



Still, no matter how hard you crimp, the terminal only makes contact with
the very edge of the outer conductors, no matter how much pressure you put
on the inner conductors.


Just not true.

Soldering makes contact with every strand on all
the surface area that's exposed.


True, but the soldered joint is subject to other factors that will
compromise
it over time.

.....and properly soldered, prevents
exposing covered copper to seawater and condensation corrosions.


Moisture (especially seawater) will eat up a soldered joint pretty quick.
A properly crimped joint that is sealed from moisture will last a long time.




  #6   Report Post  
Jim Donohue
 
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"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in message
...

"Larry W4CSC" wrote in message
...
"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

Actually, the conductors are flattened when they contact the inside of
the connector and each other giving quite a bit of contact area.



Still, no matter how hard you crimp, the terminal only makes contact with
the very edge of the outer conductors, no matter how much pressure you
put
on the inner conductors.


Just not true.

Soldering makes contact with every strand on all
the surface area that's exposed.


True, but the soldered joint is subject to other factors that will
compromise
it over time.

.....and properly soldered, prevents
exposing covered copper to seawater and condensation corrosions.


Moisture (especially seawater) will eat up a soldered joint pretty quick.
A properly crimped joint that is sealed from moisture will last a long
time.



Sure it will last...if it is a "properly" crimped joint...but I don't think
you or Gary know any way to tell if it is "properly" crimped. So you go on
faith or solder. I'd solder.

When you section a crimp you can still see the individual strands so some
interface still exists. I will agree it is very close to homogeneous. If
however it is less than perfect there may well be excellent wicking
dimensions present.

Jim Donohue


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Doug Dotson
 
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"Jim Donohue" wrote in message
news:Obq2e.895$ZV5.546@fed1read05...

"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in message
...

"Larry W4CSC" wrote in message
...
"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

Actually, the conductors are flattened when they contact the inside of
the connector and each other giving quite a bit of contact area.



Still, no matter how hard you crimp, the terminal only makes contact
with
the very edge of the outer conductors, no matter how much pressure you
put
on the inner conductors.


Just not true.

Soldering makes contact with every strand on all
the surface area that's exposed.


True, but the soldered joint is subject to other factors that will
compromise
it over time.

.....and properly soldered, prevents
exposing covered copper to seawater and condensation corrosions.


Moisture (especially seawater) will eat up a soldered joint pretty quick.
A properly crimped joint that is sealed from moisture will last a long
time.



Sure it will last...if it is a "properly" crimped joint...but I don't
think you or Gary know any way to tell if it is "properly" crimped. So
you go on faith or solder. I'd solder.


Generally a high quality crimping tool will produce a good crimp.

When you section a crimp you can still see the individual strands so some
interface still exists.


Of course. Anything further would be pretty difficult to acheive.

I will agree it is very close to homogeneous. If however it is less
than perfect there may well be excellent wicking dimensions present.


Doesn;t matter if the crimped joint is sealed.


Jim Donohue



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Doug Dotson
 
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"Jim Donohue" wrote in message
news:Obq2e.895$ZV5.546@fed1read05...

"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in message
...

"Larry W4CSC" wrote in message
...
"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

Actually, the conductors are flattened when they contact the inside of
the connector and each other giving quite a bit of contact area.



Still, no matter how hard you crimp, the terminal only makes contact
with
the very edge of the outer conductors, no matter how much pressure you
put
on the inner conductors.


Just not true.

Soldering makes contact with every strand on all
the surface area that's exposed.


True, but the soldered joint is subject to other factors that will
compromise
it over time.

.....and properly soldered, prevents
exposing covered copper to seawater and condensation corrosions.


Moisture (especially seawater) will eat up a soldered joint pretty quick.
A properly crimped joint that is sealed from moisture will last a long
time.



Sure it will last...if it is a "properly" crimped joint...but I don't
think you or Gary know any way to tell if it is "properly" crimped. So
you go on faith or solder. I'd solder.

When you section a crimp you can still see the individual strands so some
interface still exists. I will agree it is very close to homogeneous.
If however it is less than perfect there may well be excellent wicking
dimensions present.

Jim Donohue

Just one more thought. In a reasonably well crimped connection, the amount
of contact area between the wire and the connector exceeds by several
times the cross sectional area of the wire itself. The crimp is not the
weak point. Solder vs. crimp is one of those emotional issues like abortion,
guns, religion, etc. Everybody has their closely held beliefs that they
will
not abandon.




  #9   Report Post  
Larry W4CSC
 
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"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in
:

abortion,
guns, religion


Shhhh! Geez, don't even type those words on usenet! It's liable to
EXPLODE!!....(c;



  #10   Report Post  
Markus Baertschi
 
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Doug Dotson wrote:
Just one more thought. In a reasonably well crimped connection, the amount
of contact area between the wire and the connector exceeds by several
times the cross sectional area of the wire itself. The crimp is not the
weak point.


I've made the experience that with soldered joints the cable brakes
easier as the solder hardens a section of it where it would be otherwise
flexible. When it get's moved around suddenly it the conductor breaks a
couple of mm of the solder joint. With crimping this does not happen.

Markus


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