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A Loudspeaker As Thin As Paper

Engineers at MIT have created a paper-thin loudspeaker that can turn any surface into a sound source. This thin-film loudspeaker generates low-distortion sound while consuming...
Simple 1 Watt Mono Audio Amplifier Prototype

Simple 1 Watt Mono Audio Amplifier

Here is a simple project of mono audio amplifier using a single IC KIA6278P. IC1 has 8-pin legs. This mono audio amplifier will give...
Fig 1 Circuit diagram

1-Watt Single-Channel Audio Amplifier

This simple single-channel audio amplifier is built around 8-pin IC TDA 7052 and uses only a few other components. Two of these can be...

Automatic School Bell That Also Announces Alert Messages

As the coronavirus pandemic continues, and could affect school-going children as well, the importance of smart devices has increased. This automatic school bell announces...
Block diagram for Two-Way Intercom

DIY: A Simple Two-Way Intercom

If you have to frequently get up to talk to someone in your place, this intercom can save you the trouble. You can just...

Smart Musical Bell That Identifies The Person

Musical bell is the choice of many over ding-dong type bell or door-lens for which you have to go to the door to look...

Proprietary Power Architecture for AC/DC Converters

Eggtronic has announced QuarEgg+, an innovative, proprietary power architecture that significantly improves the efficiency and reduces the size of AC/DC converters that would traditionally...
HMI Technologies

How HMI Technologies Are Enhancing Safety And In-Vehicle Experience

As we are moving towards smart, connected, and autonomous mobility, the interaction between the vehicle and the human has also evolved. The HMI solutions...

Simple 5W Mono Audio Amplifier

This mono AF amplifier uses a single 5-pin LA4425A IC to deliver 5-watt output through a 4-ohm, 5-watt loudspeaker. The datasheet of LA4425A recommends...
Shortwave Transmitter

Crystal-Controlled Shortwave Transmitter

A shortwave transmitter can be built with IC CD4049, which is used as an oscillator and a buffer amplifier. The transmitter can be crystal...
 
 

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