
In this video, learn how to make a compact and powerful mini amplifier using the H1061 transistor, a 3.7V lithium battery, and a 3.5mm audio input jack. This DIY amplifier project is perfect for beginners looking to explore audio electronics and build a basic sound amplifier for speakers or portable setups.
🔍 What You’ll Learn: ✔ How to build an audio amplifier circuit using basic components
✔ The role of the H1061 transistor and 220uF capacitor in sound amplification
✔ How to power a speaker with just a 3.7V lithium battery
✔ Simple wiring technique using an audio jack for input
🧩 Main Components Used:
H1061 Transistor – Main amplifier MOSFET
1KΩ Resistor – Controls biasing current
220uF Capacitor (16V) – Filters & stabilizes input
3.5mm Audio Jack – Connects audio source
3.7V Lithium Battery – Compact power supply
Speaker – Output sound device
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