What does the x-sweep generator/driver do in a CRT?

The x-sweep generator/driver in a cathode ray tube (CRT) plays a critical role in controlling the horizontal movement of the electron beam across the screen. By increasing the current supplied to the CRT deflection coils, the x-sweep driver enables the beam to sweep from one side of the screen to the other, creating the necessary horizontal lines that compose the displayed image.

This function is essential for maintaining synchronization and ensuring that the image is correctly rendered in a stable manner. The horizontal deflection needs to be properly timed with the vertical deflection to achieve a coherent and stable image on the screen. Therefore, the x-sweep generator/driver's ability to increase current is directly related to controlling the horizontal movements of the electron beam, making this choice the accurate representation of its primary purpose in CRT operation.