Abstract: A cathodic corrosion inhibiting apparatus is disclosed which is characterized by outputting a substantially square-wave rectified output from a AC input. The square-wave rectified output has a substantially constant DC component and a minimal AC component which allows the output to minimize large oscillations in electromotive potential about a DC mean associated with traditional rectified cathodic protection apparatus. The apparatus of this invention is also designed to be remotely monitored and controlled and can include self-monitoring and control circuitry to maintain a given degree of corrosion protection to a metallic apparatus.