Abstract: The present invention relates to miniature electro-dynamic motor comprising substantially concentrically arranged stator and rotor parts relative to a centre rotor axis. The rotor part comprises a rotatably mounted permanent annular magnet fixedly arranged to a rotor shaft. The stator part comprises a plurality of electrically conductive stator windings having respective pairs of winding connections for individual receipt of electrical drive signals. The present invention further relates to a miniature vibrator applying a miniature electro-dynamic motor according to the present invention.

Abstract: An electroacoustic transducer includes a magnetic circuit of a magnetically conductive material with a pair of opposed surfaces defining a gap therebetween. The magnetic circuit includes a magnet inducing a magnetic field in the gap, the magnet having a surface constituting one of the opposed surfaces. The magnetic circuit further includes a diaphragm and a coil having electrically conducting paths secured to the diaphragm. The coil has portions of its paths situated in the gap.

Abstract: An electroacoustic transducer comprising a magnetic circuit of a magnetically conductive material with a pair of opposed surfaces defining a gap therebetween, the magnetic circuit comprising a magnet inducing a magnetic field in the gap, the magnet having a surface constituting one of the opposed surfaces. The magnetic circuit further comprises a diaphragm and a coil having electrically conducting paths secured to the diaphragm. The coil has portions of its paths situated in the gap.

Abstract: A musical instrument holder 10 for supportingly receiving a selected one of a class of woodwind instruments 100 wherein the holder 10 includes a base member 20 provided with inner 25 and outer 26 peripheral recesses for supportingly one group of wide-mouthed woodwind instruments 104, 105 and 106 and a vertical support post member 30 operatively associated with the base member 20 and having vertically spaced shoulders 31 and 32 for supporting another group of small-mouthed woodwind instruments 101, 102.