About the IC3600SIXJ1
The IC3600SIXJ1 is a device which is called a power supply selector control card. This is a type of printed circuit board or PCB. The IC3600SIXJ1 was made to be a part of the Mark I and Mark II series by General Electric. Mark I and Mark II were the earliest series made for the Speedtronic Mark line.
One (1) large plate is placed on the right half of the IC3600SIXJ1. This plate is made of silver metal and it is positioned vertically on the PCB. Two (2) large switches are featured on the plate, one (1) on either end. These switches are made from silver metal. They are connected to the surface of the board with wires that are black. Directly adjacent to the metal plate on its right side, there are two (2) large capacitors which are solid orange. These capacitors are labeled as 8503(5) and 8512(5). A large collection of ports are featured on the left side of the IC3600SIXJ1. These ports are colored dark brownish red. There are ten (10) of these ports situated on the PCB. Each is made up of a pair of ports. Each port is labeled with the initials J, for example JD, JA, JB, JC, JK, and JE. In the center of the IC3600SIXJ1 on the left side of the plate, there is a series of eight (8) resistors. The four (4) resistors on the right are solid black and the four (4) on the right are solid yellow. They are labeled as R5, R7, R6, R8, R3, R1, R4, and R2.