The present invention relates to broadband line drivers, comprising a cascade connection of an operational amplifier and a transformer, which can be integrated on chip. Energy systems, specifically renewable energy generating systems, are used as examples. In various embodiments, information derived from the intended layouts of source documents is employed to construct specifications of the constituent parts. The composition includes, as components, an acrylic emulsion polymer derived from constitutive monomers in a specific formulation; a polyether compound having a specific structure; and a specific acetylenic diol. Hard water deposits, sufficient to prevent rotation do not readily build around the pivot points. Tire supports the underside of each fork assembly to allow for the transporting the tire upon the tire mounting device.