This circuit basically is a fluid level alarm indicator intended for alerting visually impaired individuals regarding the liquid level in a container such as cup, glass or bowl. The unit […]
LM4862 Amplifier Circuit – A Better LM386 Alternative
The LM386 based amplifier is still very popular as one of the smallest sized amplifier chips. However, the LM386 is not perfect and has a few drawbacks and limitations. As […]
IC 555 Oscillator, Alarm and Siren Circuits
In this post we will learn how to build and optimize basic IC 555 oscillator circuits, whose waveforms can be further enhanced for generating complex sound effects such as warble […]
Laughter Sound Simulator Circuit
As the name suggests, this device generates electronic sound, resembling human laughter. BASIC DESIGN To enable the circuit start the proposed operations, it must have a fundamental sound input or […]
Electronic Touch Organ Circuit
An electronic touch organ is an intriguing musical device which produces very pleasant musical notes in response to finger touches on special touch sensitive electronic pads or buttons. Modern day […]
Build this Open Baffle Hi-Fi Loudspeaker System with Crossover Network
The open baffle hi-fi, high quality speaker design introduced here provides a substitute to the common loudspeaker housing. Its sound emission pattern resembles electrostatic pattern. It works without enclosure or […]