A public address system (PA system) is an electronic system that includes a set of audio electronic devices such as microphones, amplifiers, loudspeakers, and other similar audio equipment. It is […]
Audio and Amplifier Projects
Bench Amplifier Circuit
A bench amplifier is a small test amplifier which includes basically all the features that are required for testing the performance of an input audio signal. It can be also […]
Two Tone Door Bell Circuit
The electronic 2 tone door bell circuit is designed around the popular IC 555. The IC 555 is extensively applied in numerous varieties of timers and also as a basic […]
Bridged Amplifier Circuit using LM380 Circuit
The post explains how to configure a couple of LM380 ICs in the bridged format to create an output power that’s two times more or double of a single IC […]
Loudspeaker Thump Sound Eliminator Circuit
While using amplifiers, we sometimes experience this very annoying thump sound, popping up in loudspeakers whenever the amplifier is switched ON or OFF. This normally happens with amplifiers that are […]
70 Watt Stereo Amplifier Circuit
In this post we learn how to build a simple 70 + 70 watt stereo power amplifier circuit using transistors. The entire design along with power supply and PCB layouts […]