First Play will be Thursday, August 3, at 10:00 a.m., featuring a three-mile long human chain of area youngsters stretching from the Frank T. Bow Building in downtown Canton (201 2nd Street S.W.) where the NFL was founded in 1920, to the Pro Football Hall of Fame.
diode (dÄ«'Åd') An electrical device with two active terminals, an anode and a cathode, through which current passes more easily in one direction (from anode to cathode) than in the reverse direction. Diodes have many uses, including conversion of AC power to DC power, and the decoding of audio-frequency signals from radio signals.
What is a light-emitting diode? A diode is a two-terminal semiconductor device. It can be thought of as an electronic valve that only allows current to flow in one direction. The symbol for the diode is shown in the lefthand picture of figure 5. The symbol is shaped like an arrow that indicates the direction in which current may flow. The terminal marked with a positive sign is called the anode and the terminal marked with a negative sign is called the cathode. The righthand picture depicts the physical device.