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Audio Circuits

12 Watts Amplifier Circuit using Transistors

Last updated on 22 April 2026 by Admin-Lavi 1 Comment

12 Watts Amplifier Circuit using Transistors make sound louder in audio systems and this 12W amplifier uses op-amp with NPN and PNP transistors. Thus, it gives strong output for 4 ohm speaker. Also, this circuit is good for audio lovers and boost weak sound to loud, which is clear and with good quality. Circuit Working: […]

Filed Under: Amplifier Circuits, Audio Circuits, Transistor Circuits

Simple Arduino FM Receiver Circuit

Last updated on 31 July 2025 by Admin-Lavi Leave a Comment

This project uses Arduino Uno to make Simple Arduino FM Receiver Circuit. Main part is RDA5807M FM radio module. It get FM signal and changes to audio sound. Sound goes through 7809 IC to make louder and then comes out from 3.5mm audio jack. We can listen FM stations and learn basic digital electronics and […]

Filed Under: Arduino Projects, Audio Circuits

Simple FM Radio Jammer Circuit

Last updated on 28 July 2025 by Admin-Lavi Leave a Comment

Simple FM Radio Jammer Circuit make signal to block normal FM radio. It send noise or fake signal on same frequency so real FM signal get disturbed. Main parts: Transistor work like oscillator and make RF signal. Coil and capacitor set the frequency of this signal. Change trimmer capacitor to change jammer frequency inside FM […]

Filed Under: Audio Circuits

50 Watts Audio Amplifier Circuit

Last updated on 28 July 2025 by Admin-Lavi Leave a Comment

To get good sound with less power and work for long time is very important in audio amplifier. This 50 Watts Audio Amplifier Circuit give strong sound and work well. It uses both MOSFET and BJT to make clear sound and can run 8 ohm speaker with full 50 watt power. Circuit Working: Parts List: […]

Filed Under: Amplifier Circuits, Audio Circuits

10 Watts MOSFET Audio Amplifier Circuit

Last updated on 28 July 2025 by Admin-Lavi Leave a Comment

This 10 Watts MOSFET Audio Amplifier Circuit give about 10W power. It good for playing sound on low impedance speaker. It use two BC547 transistors to drive signal and IRF540 with IRF9540 MOSFETs for output power. BJT transistors make signal strong and MOSFETs give good power. Together they work well for audio amp. Circuit also […]

Filed Under: Amplifier Circuits, Audio Circuits

18 Watt MOSFET Audio Amplifier Circuit

Last updated on 28 July 2025 by Admin-Lavi Leave a Comment

18 Watt MOSFET Audio Amplifier Circuit is good for home sound, small PA or personal audio work. It give medium power to sound signal. This amplifier uses MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor). It have many good things like to stay cool, less sound problem and work efficient. MOSFET is 3-pin part which is used in many […]

Filed Under: Amplifier Circuits, Audio Circuits

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