About the DS3800NFDB
The DS3800NFDB was created by General Electric. This board is a part of the Speedtronic Mark IV series for turbine control. The DS3800NFDB is a small board that is made to be connected to a larger board to attach additional components to the board and add more functions if necessary.
A silicon controlled rectifier is centered on the DS3800NFDB. These are otherwise known as semiconductor-controlled rectifiers. This part is identified with the initials SCR and is called SCR1. Silicon controlled rectifiers are known as current controlling devices. These devices direct current in one direction. A large black resistor is also included on the DS3800NFDB. The resistor’s part number, CTG-319-CGN33, is labeled on top of the resistor. This resistor is identified with the letter R as R2. Next to this resistor are two small diodes. These diodes are grey and black. They are identified by the letters CR they and are named CR2 and CR1. found on one end of the DS3800NFDB is a large silver capacitor. This capacitor is identified with the letter C as C1. Located on one side of the daughter card are 3 mid-sized resistors. These resistors brown and covered in different colored bands. The banded resistors are identified with the letter R from R3 to R5. Two light blue resistors are located on the DS3800NFDB as well. One terminal block with three silver cubes is on one side of the DS3800NFDB. This terminal block is identified by the designator TB and it is labeled with the words +FLD and -FLD.