Abstract: A signal generator which generates an yoke signal for application to a horizontal yoke of a cathode ray tube (CRT) is presented. The signal generator receives a dc signal which indicates the width of the horizontal scan lines of the cathode ray tube and receives a pincushion correction signal. The signal generator includes a voltage source, a yoke current generator, a current feedback network, a summing circuit, an amplifier and a voltage regulator. The summing circuit sums the voltage of the dc signal and the pincushion correction signal. The current feedback network generates a first feedback signal with a first feedback signal voltage proportional to the peak value of current through the horizontal yoke. The amplifier generates a second feedback signal based on the difference in the voltage of the first feedback signal voltage and the summed voltage of the dc signal and the pincushion correction signal.