The DC Voltmeter/Ammeter consists of one voltmeter, one milliammeter, and one ammeter. Ranges have been selected to facilitate the simultaneous measurement of the voltage, the shunt field current, and the armature current of the DC Motor/Generator, Model 8501. Connections are made through 4 mm color-coded jacks.

An optional version of the DC Voltmeter/Ammeter, Model 8513-1, is provided with a zero-center voltmeter scale for application in the 2 kW Electromechanical Training System.