Abstract: A process is provided for depositing a silver coating on a metallic component of a feedthrough assembly to displace surface oxide and to deposit a conductive finish suitable for making an electrical connection. The feedthrough assembly includes a ferrule, an insulator mounted within the ferrule, and at least one tantalum terminal pin extending through the insulator. An inert gas dispensing hood is positioned over the terminal pin to create an argon gas environment around the terminal pin to prevent oxidation. A ground electrode of an electric circuit is connected to the feedthrough assembly. The electric circuit includes a direct current power source electrically connected to a resistor and a high energy storage capacitor. An active electrode of the electrical circuit is attached to a silver anode.