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tetrode valve

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  • 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 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 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

  • Tetrode — Eine Elektronenröhre ist ein elektronisches Bauelement, das aus einem evakuierten oder gasgefüllten Kolben aus Glas, Stahl oder Keramik besteht, in den mehrere Elektroden, mindestens eine Kathode mit Heizung und eine Anode, eingelassen und von… …   Deutsch Wikipedia

  • Tetrode — A tetrode is an electronic device having four active electrodes. The term most commonly applies to a two grid vacuum tube. It has the three electrodes of a triode and an additional screen grid which significantly changes its behaviour. Grids The… …   Wikipedia

  • Valve de Fleming — Diode à vide Double diode 5Y3 Di …   Wikipédia en Français

  • tetrode — noun a) A thermionic valve similar to a triode with the addition of a screen grid to protect the control grid b) A dynatron See Also: diode, triode, pentode, ode …   Wiktionary

  • tetrode — [ tɛtrəʊd] noun a thermionic valve with four electrodes. Origin early 20th cent.: from tetra + Gk hodos way …   English new terms dictionary

  • tetrode — /ˈtɛtroʊd/ (say tetrohd) noun a radio valve containing four electrodes, usually an anode, two grids, and a cathode. {tetr(a) + ode2} …  

  • tetrode — n. a thermionic valve having four electrodes. Etymology: TETRA + Gk hodos way …   Useful english dictionary

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