The Baird picture tube

The Baird picture tube was an early type of television display developed by John Logie Baird, utilizing cathode ray tube technology. It worked by directing energized electron beams onto a phosphor-coated screen, which then emitted visible light to create images. The tube contained an electron gun that generated and focused these beams, scanning across the screen in a precise pattern. This process converted electronic signals into visual pictures, making real-time TV broadcasting possible. The Baird tube was a foundational step in television evolution, leading to more advanced cathode ray tubes used in later CRT TVs before the advent of modern flat-screen displays.