The DS3800NMEC1J1J is a motor exciter control board for the Mark IV (Speedtronic) series from GE. The DS3800NMEC1J1J and other circuit boards in the Speedtronic line are used to run and control gas and steam turbines. A turbine uses an internal combustion engine to mix fuel and air to create a controlled explosion. This explosion creates a series of gases that are under pressure and force their way out causing the turbine to spin. The energy created by the spinning turbine is then harnessed and used for an assortment of other purposes. The DS3800NMEC1J1J has ten half circle black transistors that are used to amply or alter electrical signals. The DS3800NMEC1J1J has nearly one-hundred resistors (restrict the amount of energy that flows through them). The DS3800NMEC1J1J has a variable resistor or Potentiometer. The variable resistor can be identified by the black knob with a white arrow in the center. This knob allows the worker to adjust the variable resistor from zero to one-hundred, with ten-degree increments. The DS3800NMEC1J1J has diodes (allow energy to follow in only one direction) and capacitors (hold energy in an electric field). The DS3800NMEC1J1J has six masculine connection points to connect with the circuit boards surrounding it. The DS3800NMEC1J1J has thirty-five integrated circuits which hold all the programming information for the DS3800NMEC1J1J. The integrated circuits are split into EEPROM and EPROMs. The only difference between these two is EPROM can be altered while EEPROMs cannot. The DS3800NMEC1J1J has a silver square called a crystal oscillator which uses a crystal to create a high and precise frequency.
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