The other day while I was visiting a friend, I showed him some purchases I made on eBay. Realizing that I had purchased something that he had just laying around the house, something he claimed he didn't need anymore, he offered to give it to me. The item was his old multimeter. He gave it to me thinking that it was missing its batteries and didn't have its testing cables.
When I got home, I started checking it out and trying to add batteries to it. It was then that I realized that it not only was missing the batteries but also the battery pack. All that was left were two cut wires; so I found a few broken down electronics items that I could use to fix this multimeter device and restored it to working order. The following is a detailed explanation of how I did it.
Step 1: Materials
thin piece of sponge
small piece of foamed plastic
broken remote control from a toy for the battery connections
some wires from an old PC power supply
a wall wart
soldering iron and soldering wire