When I worked in the computer-building and laser making industry, I'd go into Production (aka Manufacturing) and see printer circuit boards being made (PCBA's) and other things that required a person to use a soldering gun/iron. I was always fascinated watching this being done. I didn't work in Production/Manufacturing, but did work in the Stockroom, Shipping and Receiving and had to go into Production/Manufacturing often to deliver parts. Most everything I carried in the Stockroom dealt with electronics. Well, talked my wife into us buying me a nice Soldering Iron last year for Christmas. I figured if a wire broke on the PCBA (circuit board) that runs the lights on my Darth Vader Chest Box (costume), I could solder it back. Well, that's exactly what happened! Had the Box on and was trying to adjust the straps holding it onto me and all of a sudden the lights stopped working. I decided to open the Box and look at the PCBA (circuit board). I indeed found a broke wire. It had broke off of where it was soldered. With the batteries in the Box, I touched the wire to the solder where the wire went and "moola", the Box lights worked. Put the Box back together and it was fine. Just found out that I have a broke wire on the sound PCBA on the bottom of my Lightsaber. This "sound" circuit board has the humming sound of a Lightsaber when it is on. Time to solder again! I did learn to wrap some solder around the soldering tip and let it melt, so the tip won't corrode/go bad. Do you do any soldering?