An often neglected area of study in modern electronics is that of tubes, more precisely known as vacuum tubes or electron tubes. Almost completely…
De Forest\'s Audion tube came to be known as the triode tube, because it had three elements: filament, grid, and plate (just…
For bipolar junction transistors, the fundamental measure of amplification is the Beta ratio (β), defined as the ratio of collector…
So far, we\'ve explored tubes which are totally "evacuated" of all gas and vapor inside their glass envelopes, properly known…
In addition to performing tasks of amplification and switching, tubes can be designed to serve as display devices. Perhaps the…
For extremely high-frequency applications (above 1 GHz), the interelectrode capacitances and transit-time delays of standard electron tube construction become prohibitive.…
Thomas Edison, that prolific American inventor, is often credited with the invention of the incandescent lamp. More accurately, it could…
As the name suggests, the tetrode tube contained four elements: cathode (with the implicit filament, or "heater"), grid, plate, and a new…
In the beam power tube, the basic four-element structure of the tetrode was maintained, but the grid and screen wires…
Another strategy for addressing the problem of secondary electrons being attracted by the screen was the addition of a fifth…
