control grid: meaning, definition, pronunciation and examples

No. They perform analogous functions (controlling current flow), but a control grid is a physical wire mesh inside a vacuum tube, while a gate is part of a solid-state Field-Effect Transistor (FET). They are different technologies.

It is largely historical. While obsolete in mainstream electronics, it remains relevant for maintaining/restoring vintage audio equipment, radio gear, and in some niche high-power RF applications.

If the control grid voltage becomes too positive relative to the cathode, it can attract electrons itself, causing grid current to flow. This can overload the preceding circuit, cause distortion, and potentially damage the tube.

The component is literally a mesh or grid of fine wires, often wound in a spiral, placed between the cathode and anode. Its physical structure allows electrons to pass through while being electrically influenced.

A component within a thermionic valve (vacuum tube) that regulates the flow of electrons between the cathode and anode, acting as the primary input for controlling the current.

Control grid is usually technical/historical in register.

Control grid: in British English it is pronounced /kənˈtrəʊl ɡrɪd/, and in American English it is pronounced /kənˈtroʊl ɡrɪd/. Tap the audio buttons above to hear it.