Abstract: A stylus for stereo pickups tracking acoustic events mechanically recorded in grooves of a plate shaped record carrier comprises a soft iron tube which is adapted to embody a transducer and which has an open end into which a needle support tube is engaged and secured such as by adhesive connection. The needle is carried by the support with its axis substantially perpendicular to the axis of the support tube at the outward projecting end of the tube. The soft iron tube and the support tube are engaged in an opening of a support plate and embraced by a first elastic element engaged in the opening and elastically engaged with the soft iron tube. The construction includes a second elastic element engaged around a portion of the soft iron tube and the support tube at a location adjacent the open end of the soft iron tube and forms a damping body of a material of high internal friction.

Abstract: A process of forming a sound needle for the scanning of mechanical sound carriers preferably records after the needle has been secured to a holder having a diameter comparable to the maximum diameter of the needle on the surface thereof opposite the needle tip and using a carrier having an opening therethrough, comprises reducing the diameter of the holder until it is a fraction of its original diameter, inserting the holder into the opening of the carrier and applying a securing material between the surface of the needle adjacent to and radially outwardly of the holder and to the carrier in the same area so as to secure the needle to the carrier, and reducing at least the major portion of the holder after the needle is secured to the carrier so as to leave only substantially a needle secured to the carrier.