Need Extension Cable For LED Monitor

tb

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Jun 26, 2016, 1:23:30 PM6/26/16

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I just purchased an LG 24M38H LED monitor. It comes with a DC power
adapter similar to this one:
<http://www.lg.com/us/mobile-accessories/lg-WCP-700TA-wireless-charging-pad>

The problem that I am having is that the cable is only approx. 4 ft
long. So, I am trying to find an extension cord but I am not having
much luck with the local electronics store.

Is there a site online that specializes in the kind of extension cord
that I need? I don't have a caliper but it looks to me that the plug is
roughly 5-6 mm in diameter.

Thanks.
--
tb

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Micky

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Jun 26, 2016, 2:14:04 PM6/26/16

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On Sun, 26 Jun 2016 12:23:25 -0500, tb <nos...@example.invalid> wrote:

>I just purchased an LG 24M38H LED monitor. It comes with a DC power
>adapter similar to this one:
><http://www.lg.com/us/mobile-accessories/lg-WCP-700TA-wireless-charging-pad>
>
>The problem that I am having is that the cable is only approx. 4 ft
>long. So, I am trying to find an extension cord but I am not having
>much luck with the local electronics store.
>
>Is there a site online that specializes in the kind of extension cord
>that I need? I don't have a caliper but it looks to me that the plug is
>roughly 5-6 mm in diameter.
>
>Thanks.

If it's both mobile and wireless, I woudl think they could get
together somehow, but monoprice.com is one of the two best places for
cables. There are some they don't have, but many they do.

tb

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Jun 26, 2016, 2:29:22 PM6/26/16

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Yes, I have already tried Monoprice.com. Unless I don't know how to
search their site, they do not have what I am looking for...

whit3rd

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Jun 26, 2016, 5:30:29 PM6/26/16

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On Sunday, June 26, 2016 at 10:23:30 AM UTC-7, tb wrote:
> I just purchased an LG 24M38H LED monitor. It comes with a DC power
> adapter similar to this one:
> <http://www.lg.com/us/mobile-accessories/lg-WCP-700TA-wireless-charging-pad>
>
> The problem that I am having is that the cable is only approx. 4 ft
> long.

It's inefficient and unreliable to extend the DC barrel connector. Just use a two-prong AC extension on
the power brick AC input, instead. Or do what I do, fasten an AC power strip under the table...

Micky

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Jun 27, 2016, 4:35:34 AM6/27/16

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Well you could use an AC extension cord.

hrho...@att.net

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Jun 27, 2016, 7:06:45 PM6/27/16

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An extension cord on the AC input side of the power adapter is what I have done many times over the past 50 years of using electronics with power bricks. At first, I sort of felt funny doing it, but a couple of AC extension cords save a lot of $$$ compared to buying extension cords for the load side of all those various power bricks,

Micky

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Jun 28, 2016, 7:25:26 PM6/28/16

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Everyone has swayed me that this is a better idea, but I feel obliged
for the record to say that, when an Acer laptop had a bad power jack,
I was able to buy one from Amazon. I think I bought another size for
another reason too. So you'd just have to match the plug and use
some speaker wire and tape, or silicon(e) tape and you'd have an
extension cord.

isw

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Jun 28, 2016, 11:56:08 PM6/28/16

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In article <vk16nbl84vgiupkr3...@4ax.com>,

And also an unaccounted-for voltage drop ...

Isaac

Micky

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Jun 29, 2016, 2:45:57 PM6/29/16

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I forgot to say that it was problaby not the jack, just a bad solder
connection to the Mobo, but I wanted to have the part ready when the
thing was open. That was for when the problem got serious, but it
was alleviated just by having the cord come from a direction that
tugged a little on the jack in the right direction, or at least didn't
tug in the wrong direction.

>> I was able to buy one from Amazon. I think I bought another size for
>> another reason too. So you'd just have to match the plug and use
>> some speaker wire and tape, or silicon(e) tape and you'd have an
>> extension cord.
>
>And also an unaccounted-for voltage drop ...

Do you think another 10 feet can cause a voltage drop? 2 amps x
0.01 ohms is 0.02 volts - or less.

>Isaac

Ralph Mowery

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Jun 29, 2016, 5:30:18 PM6/29/16

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In article <9h58nbti06l3hh5u4...@4ax.com>,
NONONObobb...@gmail.com says...

>
>
> >
> >And also an unaccounted-for voltage drop ...
>
> Do you think another 10 feet can cause a voltage drop? 2 amps x
> 0.01 ohms is 0.02 volts - or less.
>
> >Isaac

With the wire comming from China you never know. Some of it is copper
plated aluminum and a bit shy of the AWG for the number they give.

I had some inexpensive alligator clips with about 18 inches of wire
seperating them. Playing with a power supply of a couple of volts and
about 1 ohm of load resistance. Notice the voltage and current and
resistance did not come close to the formular for voltage drop. Some
checking the clips and thought the crimp may be bad. Soldered them and
still not beter. The wire its self had about 1/2 of an ohm in 18
inches.

Micky

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Jun 29, 2016, 5:38:20 PM6/29/16

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Wow, that's a lot. I just bought another bag of those jumper wires,
but I still have about 8 from 20 or 30 years ago. I think they're
longer too so I should be able to tell them apart, and I will rely on
the old ones.

I'll go measure the new ones when I'm there and I think of it.

Ralph Mowery

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Jun 29, 2016, 6:02:23 PM6/29/16

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In article <tqf8nbdsm3mk0bvdu...@4ax.com>,
NONONObobb...@gmail.com says...

>
> On Wed, 29 Jun 2016 17:30:13 -0400, Ralph Mowery
> <rmower...@earthlink.net> wrote:
>
> >In article <9h58nbti06l3hh5u4...@4ax.com>,
> >NONONObobb...@gmail.com says...

>did not come close to the formular for voltage drop. Some
> >checking the clips and thought the crimp may be bad. Soldered them and
> >still not beter. The wire its self had about 1/2 of an ohm in 18
> >inches.
>
> Wow, that's a lot. I just bought another bag of those jumper wires,
> but I still have about 8 from 20 or 30 years ago. I think they're
> longer too so I should be able to tell them apart, and I will rely on
> the old ones.
>
> I'll go measure the new ones when I'm there and I think of it.

I could not believe it at first. I was using a Fluke 87 meter during
the tests and knew it should be accurate. I finally went to the ohms
scale and cliped the wires between the probes. I could short the probes
with the wires and see about half an ohm difference. Could not hardly
believe it myself, but it would seem to be correct.

I got onto this when I had a resistor that was suspose to be one ohm and
a power supply putting out about an amp in the circuit. The power
supply should have been set at 1 volt to do this,but I had to set it to
2 volts to get the 1 amp. That would have been about right when I had 2
of the jumpers in the circuit with my 1 ohm resistor. Made it a 2 ohm
load instead of 1 ohm.

First I thought it was my meter leads or drop across the meter, but it
wasn't. Just those sorry jumpers. I found some 22 gauge wire and
remade the jumpers and the current and voltage calculated out correct
for the resistance.