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 [email protected] K3 #281, P3 #688 HRD v5.x/6.0 Test Team On Wed, May 16, 2012 at 7:49 AM, Arthur Burke <[email protected]> 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 <[email protected]> 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:[email protected] > > > > 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:[email protected] > > 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
