LM317T Voltage Regulator with Pass Transistor

Here I am demonstrating a quick cruise through my neighborhood in my 1977 Lincoln Continental Town Car. If you listen carefully, you can hear Brenda Lee on the original 8-track tape player. The hum you hear in the background was alternator hum before I had the voltage regulator replaced. *What I refer to as the battery dying, is the camera battery, not that car battery... just to clarify*



http://www.youtube.com/watch?v=O9PChKgO4xc&hl=en