The 6203B is a completely transistorized and suitable for either bench or relay rack operation. It is a compact, well regulated, Constant Voltage/Constant Current supply that will furnish full rated output range. The front panel CURRENT controls can be used to establish the output current limit (overload or short circuit) when the supply is used as a constant voltage source and the VOLTAGE control can be used to establish the voltage limit (ceiling) when the supply is used as a constant current source. The supply will automatically crossover from constant voltage to constant current operation and vice versa if the output current or voltage exceeds these preset limits.