13.6 The Pentode

13.6 The Pentode

Another strategy for addressing the problem of secondary electrons being attracted by the screen was the addition of a...
13.4 The Tetrode

13.4 The Tetrode

As the name suggests, the tetrode tube contains four elements: cathode (with the implicit filament, or “heater”),...
13.3 The Triode

13.3 The Triode

De Forest’s Audion tube came to be known as the triode tube because it had three elements: filament, grid, and plate...