Abstract: A miniature buzzer for a pocket pager and the like is provided. The buzzer includes a support member in the form of a cylindrical collar having a bore extending therethrough. The bore is stepped with the step defining a knife edge. A pole piece surrounded by a coil and ring magnet extends toward the step. The ring magnet and a central portion of the pole piece define a plane spaced apart from the step. A diaphragm, backed by a magnetic armature seats on the knife edge for attraction/repulsion toward/from the pole piece. The coil is driven by an oscillator extends from the collar. The assembly is contained within a housing the volume of which is also tuned to the oscillator.

Abstract: A phonograph turntable having a tone arm cueing mechanism is provided with a switch arrangement for activating the cueing mechanism and stopping the phonograph when the tone arm reaches the end of the information bearing groove of a record. The switch arrangement includes a reed switch and magnet one of which is mounted to move with the tone arm. The position of at least one of the reed switch and magnet may be varied to alter the position at which the cueing mechanism is activated.