Instructables
Picture of Custom RCA Cables
Sometimes, I need an easy way to connect some remote part of a project to the main board. A simple way is to use a standard such as RCA cables. But rather than spend $10 on a couple of packages at the store for a random amount of lengths I don't want, I could get the exact length I want by making them myself. Of course, there are many ways to connect two things together, but this particular project is for a friend, and I would like to make an easy way to replace the cables if one of them stops working. In that case, he could just go to the store to buy a replacement.

In case you are curious, these four 10' cables will be used to connect these buttons (player buzzers) to the main control box housing the circuitry and this large timer display. The entire apparatus is for a Jeopardy style quiz game to be used my friend who teaches high school science classes. The complete project description is available on my website!

Let's get to it!

 
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Step 1: Materials and Tools

There isn't a lot to this project. 

Materials
RCA Cable Ends - I got mine from Radioshack because I needed them right away, but you could easily find them online for cheaper, or scavenge old stereo equipment for cables that you don't need and just extend those wires.

Wire - I am using 24 gauge speaker wire that I had in a scrap pile for a couple of years.

Heat Shrink Tubing - Optional

Tools
Soldering Iron and Solder

Continuity Tester (or multimeter with that functionality) 

Precision Needle Nose Pliers

Helping Hands

Wire Strippers and Cutters

Hot Glue Gun - Optional

Heat Gun - Optional

Step 2: Preparing the Wire

  1. Figure out how long you want the cables to be.
  2. Cut the wire, split the two sides a bit, and strip the ends.
  3. If one side has a marking, make note of it now.
  4. Slide a piece of heat shrink tubing over the end.
  5. Open the RCA cable ends by unscrewing the back half of the casing.

nice photos! what is the project these are for?
I finally finished the full project page. You can check it out on my website.
It's a quiz game controller I'm building for a friend who teaches high school science. I'll post a link to the project page on my website when I get it finished...