The IC3600STKK1 is a temperature control board. This is a type of printed circuit board (PCB). The IC3600STKK1 was made for the Mark I-II series by General Electric (GE). The Mark I and Mark II were the earliest systems released in the Mark line of parts for gas turbine control.
The IC3600STKK1 features a slim metal plate attached to its left side. This plate contains the labels GAIN R67, TAKEOVER R66, BASE R69, AND PCD. One light is also on the plate which is labeled with the word FAULT. Directly below this is a circular red button labeled with the word RESET. On the left side of the PCB next to the metal plate, there are three (3) blue potentiometers. These devices may also be called variable resistors because they have dials which can be adjusted to change the resistance. A collection of seven (7) integrated circuit are located on the IC3600STKK1. Each integrated circuit contains a network of tiny components such as resistors, diodes, and capacitors. Some of these integrated circuits are labeled with the part numbers SM9618 and LM747CN. The remaining two (2) are labeled with the part numbers MC846P and FDI9731. Two (2) capacitors which are silver with red on one end are situated on the IC3600STKK1. Much of the space on the IC3600STKK1’s surface is taken up by resistors. Some of these resistors are solid colored while others have multi-colored bands. A number of small diodes can also be seen around the IC3600STKK1. Each of the components on the IC3600STKK1 are clearly labeled with white letters and numbers.