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-[* black] Insert wisdom here.
+[* black] Another cool electrical component? So exciting!
+[* black] Transistors are used to amplify and/or switch electrical signals. This means that they can either increase an input voltage, or be used as electronic on-off switches.
+[* black] The important thing with installing a transistor is that you solder each connection to the right spot.
+ [* red] One is used as the current source.
+ [* orange] One is used as a gate.
+ [* yellow] One is used as a current output.