Abstract: Apparatus for remotely controlling the horizontal and vertical direction of a pendulously suspended transducer by means of concentric generally vertical control shafts is disclosed. A frame in which the transducer is mounted for rotation about a tilt axis is pendulously suspended from one control shaft. The other control shaft is rotatably coupled through a universal joint to a first pulley mounted in the frame for rotation about a vertical axis. The first pulley is rotatably coupled to a second pulley mounted on the transducer for rotation therewith about the tilt axis by means of a cable routed over guide pulleys which change cable direction.