Power Supply module for Analog Paradigm Model-1 computer.
The PS-module derives the highly stabilized +/-10 V which are called "machine units" as all computations are based on these two values which are treated as +/-1 during programming of the machine.
Although these two voltages are available on the front panels of other computing modules as well (PT8, INT4), they are also available at the front of the PS-module. The four overload LEDs are lit when either the output voltage is out of bounds or if the external load is too high (which is normally caused by patching errors).