Quick/Simple Question

[Dave Wright]

This seems like something I should know, but I'm not certain I ever came across this info.

I just finished installing the P3SVGA option and I have decided to power my P3 from my power supply using the included power cable, rather than powering it from the K3.  The P3 requires 10-15 vdc with the center being positive polarity.   The included power cable has one wire that is black, and one that is black with grey stripes.  

The question is; which one is connected to the tip/center?  The black wire or the black and grey wire.

Again, I appreciate the assistance with such a simple question.

73


Dave

--
Dave Wright
K3DCW

"Real radio bounces off the sky"

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[Arthur Burke]

I wasn't certain either, but a quick check with a multi-meter answered the
question.
Art - N4PJ



On Wed, May 16, 2012 at 7:36 AM, Dave Wright <[hidden email]> wrote:

> This seems like something I should know, but I'm not certain I ever came
> across this info.
>
> I just finished installing the P3SVGA option and I have decided to power
> my P3 from my power supply using the included power cable, rather than
> powering it from the K3.  The P3 requires 10-15 vdc with the center being
> positive polarity.   The included power cable has one wire that is black,
> and one that is black with grey stripes.
>
> The question is; which one is connected to the tip/center?  The black wire
> or the black and grey wire.
>
> Again, I appreciate the assistance with such a simple question.
>
> 73
>
>
> Dave
>
> --
> Dave Wright
> K3DCW
>
> "Real radio bounces off the sky"
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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[Ian Kahn, KM4IK]

I used a digital VOM, one lead to the tip of the plug, the other to find
the zero resistance value at the exposed ends of the wire.  I don't
remember which is which, but this test will tell you quite quickly and
easily.

Hope this helps.

73,

--Ian
 Ian Kahn, KM4IK
Roswell, GA  EM74ua
[hidden email]
K3 #281, P3 #688
HRD v5.x/6.0 Test Team


On Wed, May 16, 2012 at 7:49 AM, Arthur Burke <[hidden email]> wrote:

> I wasn't certain either, but a quick check with a multi-meter answered the
> question.
> Art - N4PJ
>
>
>
> On Wed, May 16, 2012 at 7:36 AM, Dave Wright <[hidden email]> wrote:
>
> > This seems like something I should know, but I'm not certain I ever came
> > across this info.
> >
> > I just finished installing the P3SVGA option and I have decided to power
> > my P3 from my power supply using the included power cable, rather than
> > powering it from the K3.  The P3 requires 10-15 vdc with the center being
> > positive polarity.   The included power cable has one wire that is black,
> > and one that is black with grey stripes.
> >
> > The question is; which one is connected to the tip/center?  The black
> wire
> > or the black and grey wire.
> >
> > Again, I appreciate the assistance with such a simple question.
> >
> > 73
> >
> >
> > Dave
> >
> > --
> > Dave Wright
> > K3DCW
> >
> > "Real radio bounces off the sky"
> >
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

--
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