To learn how to operate an oscilloscope and use it for signal
analysis of different parts of an electronic circuit A
laboratory oscilloscope, two function generators, a few regular
connecting wires, and a few oscilloscope connecting wires
Traditionally, an oscilloscope is made of a cathode-ray tube
(CRT) in which a heating element at the back end of it releases
electrons. These electrons are accelerated toward the front end
of the tube due to a high positive voltage. A collimator first
makes a narrow beam of the accelerating electrons. The front
(screen) of the tube is coated with a phosphor and becomes
luminous when high-speed electrons collide with it. A narrow
beam of electrons arriving at the screen leaves a bright spot at
its center. Between the negative end (cathode) and the positive
end (anode), there are two pairs of deflection plates. Each pair
consists of two parallel plates similar to a parallel-plate
capacitor. One pair is oriented in a horizontal position, and
the other in a vertical position (se