Transistors Look like this:
How do you connect a transistor?
this is what a transistor will look like in a schematic:
You probably noticed there are three lines sticking out of the circle.
The one at the top is the collector of the transistor, the one on the bottom is the emitter, and the one on the side is the base.
You can buy transistors from your local electronics store!
Oh and if you have any questions so far just leave a comment on the instructable with ur question!