Today's Message Index:
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0. 06:04 AM - Please Make A Contribution To Support Your Lists (Matt Dralle)
1. 08:31 AM - METCAL Soldering Station on eBay (Eric Page)
2. 10:51 AM - Re: copper lugs (Robert L. Nuckolls, III)
3. 11:12 AM - Re: copper lugs (Ken Ryan)
4. 11:46 AM - Re: copper lugs (Robert L. Nuckolls, III)
5. 04:31 PM - Ground wire for LED lights (gwgregory)
6. 04:33 PM - Re: Re: Constructing an automatic RCA video camera feed splitter (Robert L. Nuckolls, III)
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| Subject: | Please Make A Contribution To Support Your Lists |
Dear Listers,
There is no advertising income to support the Matronics Email Lists and Forums.
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Matt Dralle
Matronics Email List and Forum Administrator
Message 1
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| Subject: | METCAL Soldering Station on eBay |
These METCAL soldering stations have been mentioned here on the list several times,
so I thought Id post this link in case someone is interested. I bought one
several years ago on Bobs recommendation and couldnt be happier theyre a pure
joy to solder with.
Ive never seen a complete unit at this price; $120 delivered is a steal.
http://preview.tinyurl.com/ycgyvj7h
Additional accessories like tip cartridges are plentiful on eBay as well both
genuine METCAL parts and compatible ones from a company called Thermaltronics.
Heres an eBay search for the tip cartridges:
http://preview.tinyurl.com/ycjaraz7
Eric
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=474240#474240
Message 2
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At 08:46 PM 11/2/2017, you wrote:
>Is it acceptable to use non-plated copper lugs on the 4AWG cables in
>my starting circuit?
>
>Ken Ryan
>Anchorage, Alaska
Sure. Recall that we strive for 'gas tight'
connections between the current carrying
components of a power pathway.
Gas-tightness minimizes electrical resistance
in the metallic interfaces, excludes moisture
and oxygen that will degrade the joint over
time. Whether or not surfaces outside the joint
are exposed to the effects of corrosion will
have only cosmetic effects on the assembly.
Bob . . .
Message 3
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Thanks. Is it really a good idea to spray connections with something like
CorrosionX? If so, would it matter if the parts are sprayed before or after
assembly?
On Fri, Nov 3, 2017 at 9:50 AM, Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 08:46 PM 11/2/2017, you wrote:
>
> Is it acceptable to use non-plated copper lugs on the 4AWG cables in my
> starting circuit?
>
> Ken Ryan
> Anchorage, Alaska
>
>
> Sure. Recall that we strive for 'gas tight'
> connections between the current carrying
> components of a power pathway.
>
> Gas-tightness minimizes electrical resistance
> in the metallic interfaces, excludes moisture
> and oxygen that will degrade the joint over
> time. Whether or not surfaces outside the joint
> are exposed to the effects of corrosion will
> have only cosmetic effects on the assembly.
>
>
> Bob . . .
>
Message 4
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At 01:10 PM 11/3/2017, you wrote:
>Thanks. Is it really a good idea to spray connections with something
>like CorrosionX? If so, would it matter if the parts are sprayed
>before or after assembly?
Any material designed for and effective for
corrosion control wouldn't hurt. Spraying
before assembly probably wouldn't make
much difference. Recall that 'gas tightness'
goes hand-in-hand with physical deformation
of the metals that make up the joint. Deformation
forces for copper alloys will be measured in
tens of thousands of pounds per square inch.
The compression strength of just about
anything you spray on is immeasurably small.
It simply extrudes out of the contact area
as the make-up forces are applied.
Bob . . .
Message 5
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| Subject: | Ground wire for LED lights |
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Message 6
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| Subject: | Re: Constructing an automatic RCA video camera |
feed splitter
My sample camera came last week. Took the thing
out of the box and pondered how (1) one might get
a grip on the thing to mount it in an airplane and
(2) how to wire it up.
Had a brain-f@#t and got my camera 'upgraded'
as you'll see here
http://tinyurl.com/yb4yf2sa
This mod installs the camera in a robust
housing and brings leads out to airplane
friendly harness connector (d-sub).
From there, you can simply use a shielded
pair of 22AWG to take +5 to the camera
on one wire, bring video back on the other.
The shielded pair would terminate nicely into
your multiplexing box also fitted with
a connector of choice.
Now that I can grip it and wire it . . .
I'll see if I can fire it up this weekend
and deduce the DC and signal characteristics
of the video output.
Bob . . .
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