Control of the National Grid (UK) — The National Grid (UK) is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations to ensure that electricity generated anywhere in Great Britain can be used to satisfy demand… … Wikipedia
control grid — noun an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube • Syn: ↑grid • Hypernyms: ↑electrode • Part Holonyms: ↑tube, ↑vacuum tube, ↑thermionic vacuum tube, ↑ … Useful english dictionary
Control grid — The control grid is an electrode used in thermionic valves (vacuum tubes) used to modulate the flow of electrons in the cathode to anode or plate circuit. Contents 1 Operation 2 Construction 3 Effects of grid position … Wikipedia
Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… … Wikipedia
Valve amplifier — A valve amplifier or tube amplifier is a type of electronic amplifier that make use of vacuum tubes instead of solid state semiconductor devices (such as transistors). As any other electronic amplifier they serve to increase the power and/or… … Wikipedia
grid — n. 1 a framework of spaced parallel bars; a grating. 2 a system of numbered squares printed on a map and forming the basis of map references. 3 a network of lines, electric power connections, gas supply lines, etc. 4 a pattern of lines marking… … Useful english dictionary
grid — noun 1》 a framework of spaced bars that are parallel to or cross each other. 2》 a network of lines that cross each other to form a series of squares or rectangles. ↘a numbered grid on a map that enables a place to be precisely located. 3》 a… … English new terms dictionary
grid bias — noun Electronics a fixed voltage applied between the cathode and the control grid of a thermionic valve which determines its operating conditions … English new terms dictionary
Mercury-arc valve — Mercury rectifier on display in Beromünster, Switzerland before being decommissioned A mercury arc valve (mercury vapor rectifier) is a type of electrical rectifier used for converting high voltage or high current alternating current (AC) into… … Wikipedia
Screen grid — The screen grid is a grid introduced into a vacuum tube (thermionic valve) to greatly reduce the capacitance between two other parts of the electrode structure.In its simplest form, a screen grid is placed between the control grid and anode or… … Wikipedia
screen grid — noun : a grid placed between the plate and the control grid of an electron or vacuum tube to eliminate the effect of plate potential variations on the control grid * * * Electronics. a grid placed between the anode and the control electrode in a… … Useful english dictionary