an analog electro - fluidic signal transducer utilizing one or a tandem series of laminar proportional amplifiers . the transducer has input passages at a varying pressure differential produced by movements of a piezoelectric bender bimorph between opposed nozzles in a pressurized chamber . the pressure in the chamber and the excursion of the bender between the nozzles relative to the nozzle diameters are limited to minimize turbulence and achieve a pressure differential between the input passages that varies proportionally to or as an analog of a voltage applied to the bender . the pressure differential between the input passages is amplified by the amplifier or plural amplifiers in tandem series .