Sound Pressure Level Meter Circuit using IC CA3140 is device to check how loud sound is in one place, also it shows sound level with visuals. Furthermore, the circuit is useful for audio testing, noise check and sound work and it shows simple way to make it using condenser mic, op-amp and FSD meter for […]
Audio Circuits
12 Watts Amplifier Circuit using Transistors
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: […]
Simple Arduino FM Receiver Circuit
This project uses Arduino Uno to make Simple Arduino FM Receiver Circuit and its main part is RDA5807M FM radio module. It get FM signal and changes to audio sound and this sound goes through 7809 IC to make louder and then comes out from 3.5mm audio jack. We can also listen FM stations and […]
50 Watts Audio Amplifier Circuit
In audio amplifiers, achieving good sound quality with low power consumption and long-term reliability is very important. Therefore, this 50-Watt Audio Amplifier Circuit delivers strong audio output while operating efficiently and reliably over extended periods. Furthermore, it uses both MOSFET and BJT to make clear sound and can run 8 ohm speaker with full 50 […]
10 Watts MOSFET Audio Amplifier Circuit
This 10 Watts MOSFET Audio Amplifier Circuit give about 10W power; it is good for playing sound on low impedance speaker; and also it use two BC547 transistors to drive signal and IRF540 with IRF9540 MOSFETs for output power. Furthermore, BJT transistors make signal strong and MOSFETs give good power and together they work well […]
18 Watt MOSFET Audio Amplifier Circuit
18 Watt MOSFET Audio Amplifier Circuit is good for home sound, small PA or personal audio work, as it give medium power to sound signal; also this amplifier uses MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor). Furthermore, it offers several advantages, including cooler operation, lower distortion and higher efficiency. A MOSFET is a three-terminal device used in many […]