Vacuum Tubes

The Vacuum Tube controls electric current flows in electronics (electrons). It's invention was a crucial step for the development of the radio, TV, and computer. The first vacuum tube was invented in 1904 by John Fleming. Then, the thermionic vacuum tube was invented and made electronic devices much smaller and more practical. These superior tubes allow for better radio transmission and frequency receivers. Even radio stations today still use this technology. In the television, the tubes are more energy efficient than LCD and LED. The electrons in the tube hit a fluorescent coating on the screen causing the glow of a TV. Before the invention of the tube, computers were made with electronic relays which was much slower than the tubes. After the invention of the tube, and while inventors began using them more frequently, speed, lifetime and reliability increased to make it clearly a better choice in design.