Simple Radio Circuit using Op Amp

admin October 17, 2018 11 Comments
Simple Radio Circuit Op-amp is the short form for Operation Amplifier. It is a device used to amplify voltage, and is very popular due to its high gain amplification. It can often amplify voltage to hundred times of what...
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Simple Amplifier Circuit

admin November 6, 2018 17 Comments
19 Watts Simple Amplifier Circuit Description This is a 19 watt simple amplifier circuit diagram using IC LA4440 from Sanyo. It uses very less components other than the IC LA4440. A very high quality circuit with respect to its...
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InfraRed (IR) Sensor/Detector Circuit

jacky November 6, 2018 11 Comments
InfraRed (IR) Sensor/Detector Circuit Description The IR circuit described below is mainly designed for liquid level detection or proximity detection. The IR sensors used here are an IR LED and an IR photo diode. The circuit operates by detecting the...
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Fridge Door Open Alarm

jacky November 3, 2018 11 Comments
Fridge Door Open Alarm Circuit Description A fridge door open alarm circuit is explained with its detailed working and circuit. The objective of this circuit is to produce an audible alarm when fridge is left open for more than...
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Automatic LED Emergency Light Circuit

admin October 23, 2018 327 Comments
LED Emergency Light An Automatic LED Emergency Light circuit is designed to turn ON when there is no adequate lighting or if the power supply is cut-off. Earlier fluorescent lights were used to build such circuits. But the use...
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Audio Sound Level Meter

jacky October 16, 2018 4 Comments
Sound Level Meter Circuit What is a sound level meter? A sound level meter is a handy equipment used to display sound levels. There are wide ranges of these devices; some show a digital numerical output of how many decibels...
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