Electrolysis Coin Cleaning - Easy Tutorial in Pictures

How To Tutorials >> Electrolysis Posted on GoMetalDetecting.com NOTE: DO NOT CLEAN COINS THAT YOU SUSPECT ARE VALUABLE! It will cut their value in half! Ask a local coin dealer first. Disclaimer: You're doing this at your own risk. We will not be held responsible for any damage in case you burn your house down or any injuries caused by this project. The first thing you need to get is an 9, 12 or 18 volt AC/DC adapter from an old phone, transistor radio, or something like that. The higher the voltage the better. We found an 18 volt adapter at a thrift store for two dollars. Maybe you have one laying around in a drawer in your house somewhere. Cut off the small plug at the other end of your adapter, and separate the wires. Strip the ends and attach an alligator clip to each wire with the screws that are supplied. You can find alligator clips at a local hardware store or WALMART. Don't buy the copper colored ones!!! Find a stainless steel spoon, a glass cup, some salt, and you are almost ready to roll! Fill the glass cup with cold water and add a teaspoon of salt and stir it up well. For better conductivity of the water you could add several drops of lemon juice concentrate, but if you don't have it around don't worry, it will still work! Now you will have to figure out which clip has the positive and the negative wires. The negative goes to the coin and the positive to ...