The electrocardiographic method of heart investigation is one of the most common in cardiology. It is important to extract additional information on the electrical activity of the heart, using data from multichannel electrocardiographic leads, that include both recorded electrocardiosignals (ECS) and the coordinates of the electrodes placed on the surface of the human torso. In this area, we are interested in reconstruction of the surface distribution of the equivalent sources during the cardiac cycle at relatively low hardware cost. The application area is deep analysis of the cardiovascular system or e.g. predicting of sudden cardiac arrest (failure of the heart to effectively pump).