A power source attachment, and a method of manufacture, that runs only off the auxiliary hydraulics of a skid-steer loader or other prime mover. The stent can be rotated so that the two images are of different views of the stent. The switching device switches between connecting the gate electrode to the power supply and disconnecting the gate electrode from the power supply. The seal configuration is configured to prevent lubricating fluid from radially exiting the arc spring cavity during rotation of the damper assembly about a center axis thereof. A timepiece that utilizes such a circuit is also provided. In an embodiment, an injection mold insert includes a superhard material for insertion into a generic cavity within an injection mold assembly.