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battery used to heat the filaments of a vacuum tube A battery
small vacuum tube; used at high frequencies acorn tube
pump used to create partial vacuum aspirator
colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts atomic number 10 , Ne , neon
battery for supplying a constant positive voltage to the plate of a vacuum tube B battery
battery used to maintain the grid potential in a vacuum tube C battery
speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second c , light speed , speed of light
electronic vacuum tube for screen cathode-ray tube , CRT
vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen cathode-ray tube , CRT
vacuum pump used to obtain a high vacuum condensation pump , diffusion pump
electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube control grid , grid
United States electrical engineer who in 1907 patented the first triode vacuum tube, which made it possible to detect and amplify radio waves (1873-1961) De Forest , Father of Radio , Lee De Forest
vacuum flask that holds liquid air or helium for scientific experiments Dewar , Dewar flask
vacuum tube diode
pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time dropper , eye dropper
bag into which dirt is sucked by a vacuum cleaner dust bag , vacuum bag
physical theory of relativity based on the assumption that the speed of light in a vacuum is a constant and the assumption that the laws of physics are invariant in all inertial systems Einstein's special theory of relativity , special relativity , special relativity theory , special theory of relativity
vacuum tube that amplifies a flow of electrons electron multiplier
equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor) electronic equipment
method of drying food or blood plasma or pharmaceuticals or tissue without destroying their physical structure; material is frozen and then warmed in a vacuum so that the ice sublimes freeze-drying , lyophilisation , lyophilization
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