The DS3800NPSV1B1B is a printed circuit board (PCB). General Electric produced this part to be a part of the Speedtronic Mark IV system. The Mark IV, like the Mark systems before it, is tasked with automating the operation of gas and steam turbines and protecting the system from the dangers of unsafe working conditions. The Mark systems have been in use for turbine operation since the late 1940s.
Twelve (12) diodes are located on the DS3800NPSV1B1B. These diodes are arranged in horizontal rows of two. They are positioned on the right half of the circuit board. Each diode is black and grey in color. One (1) LED, or light-emitting diode, can be found by the left edge of the DS3800NPSV1B1B. This LED is orange in color. The diode lights up with an orange glow when it is functioning. One (1) capacitor is located near the center of the DS3800NPSV1B1B. This capacitor is rectangular and silver in color. Two (2) small transistors can be seen on the left half of the DS3800NPSV1B1B. These transistors are shaped like a half-circle and are black in color. The transistors are labeled Q1 and Q2. One integrated circuit is positioned on the left side of the DS3800NPSV1B1B. This integrated circuit is labeled U1. Many resistors are arranged on the DS3800NPSV1B1B. One of these resistors is brown and banded with stripes of different colors like red, yellow and black. This resistor is labeled R9. Many of the other resistors are smaller. They are light blue in color and banded with various colored stripes.