This Digital Volume Controller Circuit talks about special type of electronic volume control. It does not uses normal knob but it uses an electronic parts. Normal volume knob uses resistor but this one uses small computer chip to control sound level. It gives more function and also with more correctly. Circuit Working: Parts List: Category […]
Variable Notch Filter Circuit
This Variable Notch Filter Circuit have a special filter. It can change to remove some sound frequency. We can adjust it how we need and that make it useful. This filter is also call band reject filter or band stop filter. It mostly removes or make small certain noise in one range. High and low […]
Cellphone Triggered Car Amplifier Auto Mute Circuit
This article for Cellphone Triggered Car Amplifier Auto Mute Circuit show how to make one simple circuit. When phone ring it turn OFF the car music by itself. So no need to rush or search button to stop music when call is coming. What is a Cellphone Triggered Car Amplifier Auto Mute Circuit: The Cellphone […]
300 Watt Power Amplifier Circuit using Transistors
Hey music lovers! Want your speaker sound REALLY loud? This 300 Watt Power Amplifier Circuit using Transistors show how to make very strong amplifier circuit. It can give 300 watt sound with 8 ohm speaker or even more power with 4 ohm speaker. WARNING: Be careful, this circuit uses high voltage and can be dangerous. […]
100 Watt Amplifier Circuit using IC LM12
This article discuss how to make 100 Watt Amplifier Circuit using IC LM12. No need of many parts or costly wires. Just follow some easy step and we can get nice and powerful sound. This 100 watt amplifier is small and is build easy and is good for many uses. It gives strong 100 watt […]
Roulette Wheel of Fortune Circuit
This Roulette Wheel of Fortune Circuit help us make fun game like small roulette wheel of luck! When game start ten lights blink all in random way. Lights keep changing until only one light stays ON. That one is a winner! We never know which light stay ON so thee is always surprise when we […]





