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Building Electronics Circuits (Tutorial 5): Debugging the Light Sensitive Circuit

In this video, we will test the circuit built in the previous video using a digital multimeter (DMM). We learn how to test for broken wires using the continuity mode of DMM. We also learn how to find the malfunctioning components in a circuit.
Circuit Diagram:
741 IC Internals:

This is a tutorial series on how to build electronic circuits. The videos have been very carefully crafted in a way that, anyone with basic knowledge of electricity will be able to understand.
To watch other videos in the tutorial series, visit the link:

Sponsored by: The Lakshya Foundation. (
Thanks to: The Photography Club, NIT Warangal (
Music Credits: Vinod Srinivasan

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