Mounting for the exploration of equidistant lines on the screen of a cathodic tube in particular for television with the help of a beam of cathode rays that means of deflection move in the direction of the lines and a direction perpendicular to the latter characterized in that the the cathode tube has a comb-shaped electrode such that its equidistant teeth have edges practically parallel to the direction of the lines and that from the side to be scanned from the screen the teeth extend along a part of the path traveled by the low beam the effect of the control of the line deviation means being this comb-shaped electrode attached to a control electrode of an electronic tube that is periodically unblocked during at least a part of the time during which the beam moves in front of the edge of the tooth that is parallel to the passage that the output circuit of the electronic tube picks up a voltage regulaci which adjusts the deflection of the beam perpendicular to the direction of the lines. (Machine-translation by Google Translate, not legally binding)
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