Equipment for playing gramophone records and method of operation thereof

Equipment for playing gramophone records, in association with a turntable deck having a rotatable record supporting turntable thereon, comprising a tone arm, means for mounting the tone arm adjacent the turntable on the deck such that the arm can pivot about a vertical axis thereon, and, at least a part of the arm can pivot about a horizontal axis, a free end of the tone arm carrying a stylus disposed to track across a rotating record on the turntable, means imparting a component of linear movement of at least a part of the tone arm thus to impart to the stylus during play a degree of forward movement away from the point of pivotal attachment of the tone arm to the deck, a first guide member connected to the tone arm, and a second guide member slidably engaging said first guide member such that the first guide member is constrained and caused to advance forwardly through the second guide member as the stylus tracks across the record, thus to determine and control the track of the stylus, whereby the center line of the stylus maintains alignment with a line drawn at right angles to the record radius at the point of stylus contact therewith.