The IC3600QSPA103A103A is what is known as potentiometer board. This part is a printed circuit board or PCB which was manufactured for the Mark I-II series by GE (General Electric). The Mark I and the Mark II are systems which manage the processes of gas turbines. These series were the first two generations to be released in the Mark series.
The IC3600QSPA103A103A potentiometer board contains a variety of electronic circuit board components. Four (4) large relays (or contactors) take up most of the space on the surface of the board. Each of these relays is rectangular in shape. They are each made of a gold colored metal with grey pieces on either end. These relays all have white labels on the top which feature the part numbers, CR120G40B06FC and 68A9997277C03. The relays contain a voltage or 28 volts DC (28VDC). These labels contain the name of the manufacturer, General Electric, and GE’s symbol along with other information. These four large relays are connected with multicolored wires to a long series of metal prongs. These wires are green, red, pink, and orange in color. The metal prongs cover the entire right edge of the IC3600QSPA103A103A. They are used to connect the IC3600QSPA103A103A to the other parts in the Mark system. A series of grey resistors is located at the top left side of the IC3600QSPA103A103A. These resistors are solid in color. They are positioned upright on the board’s surface. Each of these resistors can be identified by the designator R. There are seventeen (17) of these resistors in total.