single-stage valve
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stage — ► NOUN 1) a point, period, or step in a process or development. 2) a raised floor or platform on which actors, entertainers, or speakers perform. 3) (the stage) the acting or theatrical profession. 4) a scene of action or forum of debate. 5) a… … English terms dictionary
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
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 — A valve (UK) audio amplifier or vacuum tube (US) audio amplifier is a valve amplifier used for sound recording, reinforcement, or reproduction. Until the invention of solid state devices such as the transistor, all electronic amplification was… … Wikipedia
stage — n. & v. n. 1 a point or period in a process or development (reached a critical stage; is in the larval stage). 2 a a raised floor or platform, esp. one on which plays etc. are performed before an audience. b (prec. by the) the acting or… … Useful english dictionary
stage — noun 1》 a point, period, or step in a process or development. ↘a section of a journey or race. 2》 a raised floor or platform on which actors, entertainers, or speakers perform. ↘(the stage) the acting or theatrical profession. 3》 a scene… … English new terms dictionary
Ball valve — A ball valve (like the butterfly valve and plug valve are one of the family of valves called quarter turn valves ) is a valve that opens by turning a handle attached to a ball inside the valve. The ball has a hole, or port, through the middle so… … Wikipedia
Artificial heart valve — An artificial heart valve is a device implanted in the heart of a patient with heart valvular disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires… … Wikipedia
Centaur (rocket stage) — Centaur is a rocket stage designed for use as the upper stage of space launch vehicles. Centaur boosts its satellite payload to its final orbit or, in the case of an interplanetary space probe, to escape velocity. Centaur was the world s first… … Wikipedia
Aortic valve stenosis — Classification and external resources ICD 10 I35.0, I06.0, Q23.0 … Wikipedia
