The invention relates to a printed circuit which is equipped with electrically conductive tracks and which can be obtained by means of gravure printing. Gravure printing can be used to obtain conductive tracks of a very small thickness, such that said tracks have a high electrical resistance. In order to reduce the electrical resistance of the tracks (30) thus obtained, the invention consists in connecting at least two first electrodes (9, 8) to opposite portions (17, 18) of the same track while the middle (19) of said track is immersed in an electrolytic bath (7). Moreover, the bath is connected to a second electrode (26) which is in turn connected to a second potential (15) having an opposite polarity to that of a first potential (14) connecting the first electrodes.