An RF amplifier system having closed cavity containing an amplifying device that includes at least a cathode, an anode and a grid and wherein the amplifying device exhibits an internal grid-to-anode capacitance. Each linkage shares a common link with each adjacent linkage and the movement of said two or more linkages is synchronized by mechanical means such that said mechanism may move between a collapsed and an extended state. The display assembly is controllable between an inactive state and an active state. A method is also provided for fabricating an electro-absorption light intensity modulator device. The optical prism can direct at least a portion of the optical signal through free space to the optical combiner.