Abstract: A circuit arrangement for the selection, the tuning and the storage of a frequency of signals receivable in a receiving set is described. The main feature of this circuit, which comprises a controlled oscillator whose frequency is determined by a control loop as a function of a number N, at least a first and a second memory circuit and a control panel, is that of having means for selecting one frequency among a plurality of receivable frequencies; means for optimally tuning said selected frequency; means for storing within the second memory circuit the information about the number N for each selected frequency; and means arranged to utilize the information stored in the second memory, about the number N, so as to enable to select again the optimally tuned frequency.

Abstract: A line output transformer for a television receiver has a plurality of windings which surround a ferromagnetic core and are wound around an insulating support. The support has a plurality of grooves for receiving the respective windings, the defining wall of at least one of the grooves being provided with a slot intended to guide the starting end of a winding to the bottom of the groove and to inhibit contact between the starting end and subsequent turns wound in the groove.

Abstract: A device for controlling the convergence of the side beams of a color television picture tube having three in-line electron guns, comprising two sets of coils wound on an annular ferromagnetic support in a configuration which, when an electric current is passed through one of the sets of coils, generates a magnetic field which influences only one of the side beams causing it to deflect in one direction and when an electric current is passed through the other of the sets of coils, generates a magnetic field which influences only the other of the side beams also causing deflection thereof in the said one direction. Deflection of the two side beams in a direction orthogonal to the said one direction is achieved independently by two further sets of coils which generate magnetic fields individually influencing associated side beams to cause deflection thereof by an amount depending on the magnitude and direction of the currents flowing in the coils.