Following are the different types of vacuum tubes and the elements used to control the flow of current. See vacuum tube. ----- VACUUM TUBES -----Triode Pentode Elements Diode Tetrode Cathode X X X X ...

A vacuum tube, known as the first electronic device, is used to switch, amplify, or commutate electric signals. In the past, vacuum tubes functioned as a main part of a diverse range of electronic ...