Abstract: A rotary variable differential transducer has first and second coil portions (50a and 50b) of a primary coil overwound by respective secondary coils (52 and 54). Pole pieces (42 and 44) are asymmetrically arranged about the axis of rotor (16) and are inductively associated with the first and second coil portions (50a and 50b), respectively. The rotor (16) has first and second formations which are respectively defined by front and rear arcuate portions (70b and 70c) associated with the pole pieces (42 and 44), respectively. The pole pieces (42 and 44) are mutually angularly displaced about the axis of the rotor (16). The first and second coil portions (50a and 50b) are mutually axially displaced relative to the rotor (16) and an intermediate common pole piece (32b) is disposed between them.