screen grid valve

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• 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

• Valve transmitters — Most high power transmitter amplifiers are of valve construction because of the high power required.Anode circuitsSince valves are designed to operate with much higher resistive loads than solid state devices, the most common anode circuit is a… …   Wikipedia

• Valve RF amplifier — A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical , typically (but not exclusively) radio frequency signals.Low to medium power valve amplifiers for frequencies below… …   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

• screen — noun 1》 an upright partition used to divide a room, give shelter, or provide concealment.     ↘a windscreen of a motor vehicle.     ↘a frame with fine wire netting used to keep out flying insects. 2》 the surface of a cathode ray tube or similar… …   English new terms dictionary

• Valve — Corporation Тип час …   Википедия

• screen — Synonyms and related words: TV, TV set, act drop, advocate, aegis, alibi, analyze, apology, apply to, arabesque, arm, arm guard, armor, art film, asbestos, asbestos board, assort, awning, backdrop, backstop, basketry, basketwork, batten, beach… …   Moby Thesaurus

• grid — /grɪd / (say grid) noun 1. a grating of crossed bars; gridiron. 2. Electricity a metallic framework employed in a storage cell or battery for conducting the electric current and supporting the active material. 3. a network of cables, pipes, etc …  

• 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

• Suppressor grid — A suppressor grid is a grid used in a thermionic valve (also called vacuum tube) to suppress secondary emission. A suppressor grid is also called the antidynatron grid, as it helps to reduce the dynatron effect. Placement In its simplest form, a… …   Wikipedia