Võimendustorud
Võimendustorud, also known as vacuum tubes or thermionic valves, are electronic components that control electric current flow in a vacuum. They were fundamental to early electronics and played a crucial role in the development of radio, television, computers, and many other technologies.
The basic principle of a vacuum tube involves thermionic emission, where heating a filament (cathode) causes
Different types of vacuum tubes exist, each designed for specific functions. Diodes, with just a cathode and
While largely replaced by solid-state semiconductor devices like transistors due to their smaller size, lower power