Deflection Yokes

Deflection Yokes

Deflection yokes are electromagnetic devices that are used in cathode ray tube (CRT) televisions and monitors to control the movement of the electron beam. The yoke consists of a coil of wire that is wrapped around the neck of the CRT and is responsible for deflecting the electron beam horizontally and vertically across the screen. The deflection yoke is an essential component in the CRT system, as it is responsible for creating the images that are displayed on the screen. The deflection yoke works by creating a magnetic field that interacts with the electron beam. The magnetic field is created by passing an alternating current through the coil of wire in the yoke. The strength and direction of the magnetic field can be controlled by adjusting the frequency and amplitude of the current. This allows the electron beam to be deflected in any direction across the screen. There are two types of deflection yokes: the horizontal deflection yoke and the vertical deflection yoke. The horizontal deflection yoke is responsible for moving the electron beam from left to right across the screen, while the vertical deflection yoke is responsible for moving the electron beam up and down the screen. Both yokes work together to create the images that are displayed on the screen. In modern televisions and monitors, deflection yokes have been replaced by digital signal processing technology. However, they are still used in some specialized applications, such as in oscilloscopes and other scientific instruments.

electromagnetic, cathode ray tube, magnetic field, horizontal deflection yoke, vertical deflection yoke

— Joseph Williams