[DOC] [TLE] Vacuum tube - Wikipedia [PAR] In electronics, a vacuum tube, an electron tube, or just a tube (North America), or 
valve is a device that controls electric current between electrodes in an 
evacuated container. Vacuum tubes mostly rely on thermionic emission of 
electrons from a hot filament or a cathode heated by the filament. ... In the 1940s 
the invention of semiconductor devices made it possible to... [DOC] [TLE] Thermionic emission - Wikipedia [PAR] Thermionic emission is the thermally induced flow of charge carriers from a 
surface or over a potential-energy barrier. This occurs because the thermal 
energy... [DOC] [TLE] Hot cathode - Wikipedia [PAR] In vacuum tubes, a hot cathode or thermionic cathode is a cathode electrode 
which is heated to make it emit electrons due to thermionic emission. ... In an 
indirectly-heated cathode, the filament or heater heats a separate metal cathode 
... would affect the movement of the electrons and introduce hum into the tube 
output. [DOC] [TLE] Transmission electron microscopy - Wikipedia [PAR] Transmission electron microscopy (TEM) is a microscopy technique in which a 
beam of ... This effect had been utilized to build primitive cathode ray 
oscilloscopes ... electron microscopes being manufactured in Manchester UK, the 
USA (RCA), ... emit electrons either by thermionic or field electron emission into 
the vacuum. [DOC] [TLE] Vacuum tube (Inventions) - In Depth Tutorials and Information [PAR] The invention: A sealed glass tube from which air and gas have been removed ... 
an American inventor Lee de Forest (1873-1961), an American scientist and ... 
leading to the invention of the vacuum tube was the Edison effect by Thomas 
Alva .... such as metal oxides, they emitted far more electrons at a given 
temperature. [DOC] [TLE] Introducing the Vacuum Transistor: A Device Made of Nothing - IEEE ... [PAR] Jun 23, 2014 ... This curious mash-up of vacuum tube and MOSFET could one day ... emission: 
Heating the cathode causes it to shed electrons into the surrounding vacuum. ... 
vacuum tube capable of amplification is the triode, so named ... metal-oxide 
semiconductor field-effect transistor or MOSFET [left]. ..... invention.". [DOC] [TLE] thermionic emission | physics | Britannica.com [PAR] Alternative Titles: Edison effect, Hammer's phantom shadow ... Thermionic 
emission, discharge of electrons from heated materials, widely ... of electricity 
from a filament to a plate of metal inside an incandescent lamp. ... February 11, 
1847 Milan, Ohio, U.S. October 18, 1931 West Orange, New Jersey American 
inventor who,... [DOC] [TLE] thermionic power converter | electronics | Britannica.com [PAR] These emitted electrons flow toward the collector, and the circuit can be 
completed by ... In the 1880s the American inventor Thomas Edison applied for a 
patent ... In his patent request, he explained that a current passes from a heated 
... the limit imposed on the maximum current density because of the space-
charge effect. [DOC] [TLE] Lessons In Electric Circuits -- Volume III (Semiconductors) - Chapter ... [PAR] Thomas Edison, that prolific American inventor, is often credited with the 
invention of ... the vacuum of the lamp, those electrons finding their way to the 
metal strip, through ... The one-way electron flow of this device (known as the 
Edison Effect) ... The tube symbol for a triode with an indirectly-heated cathode 
looks like this:. [DOC] [TLE] Online Unit Converters  Electrical Engineering  Volume Charge ... [PAR] An oxide-coated nickel tube, which is an indirectly heated cathode, is a source of 
... Discovery of thermionic emission allowed for the invention of vacuum tubes 
like ... as Edison effect, and is named after the American inventor Thomas Edison, 
... In general the charge of a sample of metal together with the free electrons in 
the... [DOC] [TLE] The Discovery of Electron - Vigyan Prasar [PAR] As Thomson later wrote in the paper reporting his discovery of the electron, "The 
most .... experiment and confirmed that charged particles are emitted by the 
cathode. ... Thomson built a cathode ray tube ending in a pair of metal cylinders 
with a slit

Question: This effect, the emission of electrons from a heated metal in a vacuum, is named for an American inventor
Answer: the Edison effect