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Basic Parts Of a CRO




Let us to know the basic parts of an CRO.

We will consider first the operation of the CRO for this simplified block diagram. For a beam deflection which is visible from a centimeter to a few centimeters, the usual voltage applied to the deflection plates is of the order of tens to hundreds of volts. Since the measured signals using an CRO are typically only a few volts, or even a few millivolts, amplifier circuits are needed to increase the input signal to the voltage levels required to operate a tube. There amplification stages for both horizontal and vertical deflections of the beam. To adjust the level of a signal, each input passes through an adjustable attenuator circuit.

You can searching on Google for a general block diagram for a cathode ray oscilloscope and obtain a better understanding!



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