TA7642 IC is very sensitive chip for AM radio, it needs few extra parts and works on low voltage; also circuit is good for small and efficient radios. In this post we will see AM Radio Receiver Circuit using IC TA7642 and here we have explained each part and have given easy steps to build. […]
Magnetic Proximity Switch Sensor Circuit
The Magnetic Proximity Switch Sensor Circuit detects magnetic fields to operate in factories, security systems and automation applications; also a magnetic reed switch serves as its main sensing component. ICs like 555 timer and CD 4013 flip-flop turn relay ON/OFF when magnet is close by and then relay control other device ON/OFF. Moreover, circuit need […]
12V Mini Emergency Light Circuit with LDR
12V Mini Emergency Light Circuit with LDR is simple project to make; here, light gets ON automatically when dark and it works with bright white LED and uses 12V battery. Also, the circuit is good for home, garage and emergency. Circuit Working: Parts List: Components Values Quantity Resistors 10k 1/4 watt 1 2.2k 1/4 watt […]
12 Watt Audio Amplifier Circuit using IC LF351
Audio amplifier is very important in sound system, as it make weak sound strong for 8Ω speaker and a 12W amplifier uses IC LF351 and push-pull transistors. This 12 Watt Audio Amplifier Circuit using IC LF351 works on ±12V power and is good for small and medium speakers. Circuit Working: Parts List: Components Values Quantity […]
Sound-to-Beep Circuit using IC CD4049
Sound-to-Beep Circuit using IC CD4049 is a fun project, where we hear whistle which beep for 3 sec; also circuit is good for door alarm, remote control other sound things. Moreover, it has mic for sound, op-amps from CD4049 and transistor for buzzer and it runs on 3V battery. Circuit Working: Parts List: Components Values […]
Simple Dark Sensor Circuit for Security using IC 555 timer
Simple Dark Sensor Circuit for Security using IC 555 timer is useful project for security, it senses low light and turns ON the buzzer or light. Also, the circuit uses an LDR for light sensing and works well in night lights and alert systems. Furthermore, it includes a 555 IC, an LDR, resistors, a capacitor […]