General Electric created the IC3600SCAB1 as a printed circuit board which is part of the Mark I and Mark II systems. The MKI and MKII were the first series in the Speedtronic Mark line. The first system, which is the Mark I, was created as early as 1968. The Mark systems control all functions of gas turbines including temperature, water and fuel injection, startup and shutdown, as well as safety for both the system and the system’s operators.
The IC3600SCAB1 features a wide variety of electronic components. Six (6) integrated circuit are arranged in a line along the right side of the IC3600SCAB1. Each of these integrated circuits contain very small components including capacitors, resistors, and diodes. These components are labeled with the designator U. Directly below these integrated circuits, there is a silver capacitor. Other capacitors are also featured on the IC3600SCAB1. These capacitors are solid red and rectangular. A variety of resistors is featured on the surface of the IC3600SCAB1. These resistors are small in size. Many of the resistors are blue with various colored bands. The other resistors are a solid red color. All of these resistors are aligned in rows on one half of the IC3600SCAB1. One round red components, which is called an MOV or metal oxide varistor, can be see at the top of the IC3600SCAB1. A long line of metal prongs is arranged along the left edge of the IC3600SCAB1. These prongs are used to connected the printed circuit board to the larger Mark I-II system.