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  • oscilloscope A system in which a supplied signal causes the deflection of the electron beam in a cathode-ray tube, thus forming a visible trace on the phosphor screen of the tube and providing for examination of signal characteristics. A CRT oscilloscope is...
  • electron beam (e-beam) A stream of electrons emitted by a single source that move in the same direction and at the same speed.
  • deflection Any bending of a wave of radiation away from its expected path, as, for example, by diffraction or by a magnetic field.
  • cathode-ray tube (CRT) A vacuum tube with an electron gun at one end and a fluorescent screen at the other. Electrons emitted from a heated filament are accelerated by a series of annular anodes at progressively higher positive voltages. The electron beam is then...
  • CRT
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