So I bought a PMP (Portable Media Player) from Hong Kong so i could play my NES games with the on-board emulator wherever was convenient. Long road trips, flights, waiting rooms, etc. are places that I like to kill time with portable media but the only trouble was that the on-board emulator only had one volume......MAXIMUM. My earbuds of choice didn't have adjustable volume so i needed a solution to turn the game music down a little, I ended up coming up with the 3.5mm Earbud/Headphone Volume Adjuster.
Note: Turns out I'm not the only one with this idea, I did a quick search on Youtube and found this tutorial! I was even able to find a few commercial versions of this idea out there but they were $10-20.
Step 1: Tools & Materials Needed
Materials you will need:
- Safety Glasses, Safety First!
- 3.5mm Male Stereo Audio Jack
- 3.5mm Female Stereo Audio Jack
- Small gauge Stereo Audio wire
- 1Kohm Thumbwheel Audio Potentiometer for Volume Control
- Heat Shrink Tubing
- Solder Sucker or Braid (in case of emergency)
Tools you will need:
- Hot Glue Gun
- Soldering Iron
- Heat Gun (optional - you can use a soldering iron to carefully melt heat shrink)
-Digital Multimeter to test connections (may only need it if you have issues)