relay tube
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Relay — This article is about the electrical component. For other uses, see Relay (disambiguation). Automotive style miniature relay, dust cover is taken off A relay is an electrically operated switch. Many relays use an electromagnet to operate a… … Wikipedia
Relay league — A relay league is a chain of message forwarding stations in a system of optical telegraphs, radio telegraph stations, or riding couriers.An interesting description of these early 19th century methods and its evolution into the electrical… … Wikipedia
relay valve — relinė lempa statusas T sritis fizika atitikmenys: angl. relay valve; trigger tube vok. Relaisröhre, f rus. релейная лампа, f pranc. tube relais, m … Fizikos terminų žodynas
tube relais — relinė lempa statusas T sritis fizika atitikmenys: angl. relay valve; trigger tube vok. Relaisröhre, f rus. релейная лампа, f pranc. tube relais, m … Fizikos terminų žodynas
Protective relay — See also: Power system protection In electrical engineering, a protective relay is a complex electromechanical apparatus, often with more than one coil, designed to calculate operating conditions on an electrical circuit and trip circuit breakers … Wikipedia
Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… … Wikipedia
Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… … Wikipedia
electron tube — an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents. Also called electronic tube. Cf. gas tube, vacuum tube … Universalium
Reed relay — A reed relay is one or more reed switches controlled by an electromagnet. The contacts are of magnetic material and the electromagnet acts directly on them without requiring an armature to move them. Sealed in a long, narrow glass tube, the… … Wikipedia
Charing Cross (Northern Line) tube crash — The Charing Cross (Northern Line) tube crash occurred at 08:32 hours on 10 March 1938, when two Northern Line trains collided near Charing Cross (now Embankment). Twelve people were slightly injured. The cause was a wrong side failure of the… … Wikipedia
vacuum-tube relay — lempinė relė statusas T sritis fizika atitikmenys: angl. vacuum tube relay; valve relay vok. Röhrenrelais, n rus. ламповое реле, n pranc. relais à tubes électroniques, m … Fizikos terminų žodynas