This is a simple circuit which helps to change the tune/melody into a different pitch level by devoid of loss in the tune. The circuit, which is presented here, is used to change the tune/melody into ...

This active splitter for laptop audio-out is powered from a USB and provides individual channel gain of 39 dB and individual volume control of a head-phone channel. The circuit uses two TDA2822M audio ...

Designers can make useful products that include electrical components close electrical componentA device in an electric circuit, such as a battery, switch or lamp.. They allow a product to have lights ...