what is the function of Attenuator in CRO? | ELECTRICAL MEASUREMENTS LAB VIVA

The voltage in input terminal of the vertical amplifier causes the beam to deflect off the CRT screen, is unite low in amplitude. So that high amplitude signals may be displayed, an attenuator network is placed between the vertical input terminals of the vertical amplifier. The main function of the attenuator is to reduce the amplitude of the vertical input signal before applying it to vertical amplifier.

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