thermionic tube
121schottky effect — n. Electronics the increase in thermionic emission from a solid surface due to the presence of an external electric field. Etymology: W. Schottky, Ger. physicist d. 1976 * * * noun Usage: usually capitalized S : the increase of the thermionic… …
122Central processing unit — CPU redirects here. For other uses, see CPU (disambiguation). An Intel 80486DX2 CPU from above An Intel 80486DX2 from below …
123Walter H. Schottky — Infobox Scientist name = Walter H. Schottky box width = image width =150px caption = Walter H. Schottky birth date = 23 July 1886 birth place = Zürich, Switzerland death date = 4 March 1976, Pretzfeld, West Germany death place = residence =… …
124Audio mastering — Mastering, a form of audio post production, is the process of preparing and transferring recorded audio from a source containing the final mix to a data storage device (the master); the source from which all copies will be produced (via methods… …
125Spark-gap transmitter — A spark gap transmitter is a device for generating radio frequency electromagnetic waves. These devices served as the transmitters for most wireless telegraphy systems for the first three decades of radio (1887 ndash;1916) and the first… …
126High voltage — The term high voltage characterizes electrical circuits, in which the voltage used is the cause of particular safety concerns and insulation requirements. High voltage is used in electrical power distribution, in cathode ray tubes, to generate X… …
127Dynatron — For the brand, see Dynatron Radio Ltd The dedicated dynatron vacuum tube was invented by Albert Hull in 1918 [http://ieee.cincinnati.fuse.net/newsletters/200401.pdf] . It has three electrodes: a thermionic cathode, a perforated anode, and a… …
128Distributed amplifier — Distributed amplifiers are circuit designs that incorporate transmission line theory into traditional amplifier design to obtain a larger gain bandwidth product than is realizable by conventional circuits. N stage traveling wave amplifier …
