Simple Microphone Amplifier Circuit using BC547 | DIY Mic Circuit with 3.7V Battery | Electronics

Simple Microphone Amplifier Circuit using BC547 | DIY Mic Circuit with 3.7V Battery | Electronics

Learn how to make a simple microphone amplifier circuit using a BC547 transistor, 10K & 100K resistors, and a 3.7V battery. 🎤
This DIY electronics project is perfect for beginners who want to understand how a mic circuit works and how to amplify sound signals for audio output.

🧩 Components Used:

Electret Microphone
Transistor BC547
Capacitor 104 (0.1µF)
Resistor 10K
Resistor 100K
3.7V Battery
🔌 Working:
The mic converts sound into small electrical signals which are amplified by the BC547 transistor to produce a clear audio output. Ideal for hobby projects, school experiments, and electronics learners.

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