In this article, I will explain How to Replace IC TDA2050 with LM1875 IC in Audio Amplifier Circuit. Many people use TDA2050 for 35W amplifier, but it is considered obsolete and has been discontinued by the original manufacturer but it might be available in online market as many user wants this IC for better sound […]
Audio Circuits
Transistor Based Audio Amplifier Circuit
A Transistor Based Audio Amplifier Circuit is a simple and useful audio circuit that increases weak audio signals into a louder sound signal. This circuit uses four transistors, namely two BC547 NPN transistors and two BC557 PNP transistors, because of its simple design, students and beginners can easily understand and build it. Moreover, this circuit […]
DC Step-Up Converter Circuit using Audio Amplifier IC
A step-up DC converter is a useful electronic circuit that increases a low DC input voltage into a higher DC output voltage. In this circuit, the TDA2004 IC works as the main switching and amplification device, although this IC is mainly designed as an audio amplifier, we can also use it for DC voltage boosting […]
IC 741 Based Audible Light Sensor Circuit using LDR
The IC 741 Based Audible Light Sensor Circuit using LDR is a simple and useful electronic circuit which detects the change in light intensity and gives an audible sound through the speaker. Also, this circuit works like a light controlled pulse oscillator generator, as IC 741 gives pulse signals at the output and the speaker […]
Automatic Tone Generator Circuit using LDR and 555 IC
Want to build a smart sound circuit controlled by light? then this simple yet interesting electronics project is a perfect choice, which uses an LDR and 555 timer IC to generate different tone or beep sounds whenever the light level changes, making it best for alarms, warning systems and beginner electronics projects. The 555 timer […]
LM386 Amplifier Circuit with Bass Boost and Mini Audio Amplifier
This project uses a very old LM386 audio amplifier IC and is still one of the best beginner audio amplifier ICs for learning and DIY circuits, which increases the strength of weak audio signals with very few components, it provides enough output power to drive a small 4Ω or 8Ω speaker directly and because of […]