⭕ Advanced Energy MDX-L12M-650 DC Magnetron Drive. less than 2 years old. Good working order and excellent condition. Available for delivery/pick-up. The Advance Energy MDX-L Series DC Magnetron Drives are equipped with a built-in impedance-matching transformer. These transformers are available in high Z, standard Z, configurations. The Advance Energy MDX-L Series DC Magnetron Drives can be used as a power, current or voltage source, depending on the method of output regulation selected. The Advance Energy MDX-L Series DC Magnetron Drives have complete internal protection for output over-voltage and over-current conditions.