Could you please explain what it is that it does and why you need one for the electronically challenged.
As a capacitor can be used in a circuit to resist swings in voltage. An inductor can be used to resist changes in current. Inductors are common in many DIY electronic projects, but you can't buy them at Radio Shack. You have to order them, make them or salvage them from something like a computer power supply. I have a bag of inductors that I have accumulated over the years and most of them have no value markings. My meter allows me to quickly determine the values of my inductors. Most multi-meters will measure capacitance but not inductance.
Recently, I was working on my computer controlled vacuum chamber to create better lens for my
RGB Volcano Buttons which behooved me to create a 24V step up circuit which required an inductor. Now I can get back to work on my arcade projects.