I have a male/male cable between the sensor and the display on an old Nordic Track ski machine. It's the same size as a 1/8 headphone jack, but the pictures I see of those have two or three black rings (I assume insulating different wires within the cable). Mine has only 1 such ring, about one-third of the way from the stip toward the base. I have a picture but don't see an option for adding an image here. Can anyone give me the name of such a jack so I can try to find one (my cable seems to have broken internally)? And any suggestions about a source would be welcome, too.
Thank you very much.