How can I make an extension cord for my M.Quartz Remote Control 1?
You will need some small, small two conductor coax with shield (I used Belden 8451, but if you can find something thinner, use it), a stereo 2.5mm phone plug, and a stereo 2.5mm in-line phone jack. These jacks and plugs can be hard to find, since neither Radio Shack, DigiKey, Jameco, or Newark carry them. I found mine at a local electronics hobby shop (You-Do-It Electronics in Dedham, MA. They do mail order if you can’t find these locally). Once you have the materials, cut the length of coax you need, and strip each end. Then tin all the wires at each end, and the pins on the connectors. Then simply solder the pins to the wires, making sure not to cross the wires in the process. The shield wire should go to the base of the connector. It doesn’t matter which of the two inner conductors go to the tip and which goes to the middle, but be consistent. Check for shorts, and you are done! Note that the third conductor is necessary for a pulse from the MD 2 which causes the controller counter
