Electronic Mosquito Swatter Bat Circuit is very common device at home and work place. It uses small battery and simple circuit to make big voltage. This big voltage come on mesh net of a bat. When mosquito or fly touches the mesh the current pass through body and insect die quickly. Main idea is to […]
Auto On Off Light Circuit for Washroom
In washroom many time people forget to switch OFF the light because of this there is waste of electricity. To solve this problem we can make a Auto On Off Light Circuit for Washroom. When someone presses the switch it detects the presence and light will turn ON for some time and then get OFF […]
AM Radio Circuit using Transistors
This article show how make AM Radio Circuit using Transistors It use easy parts like transistor, capacitor, resistor and inductor. Parts are easy to find and good to learn basic radio frequency RF, catch signals and to make sound louder. Circuit catch medium wave AM signals and changes AM signal to sound and play sound […]
Low Cost AM Radio Receiver Circuit
This cheap and easy Low Cost AM Radio Receiver Circuit uses simple parts to make. It helps us get normal AM radio signals. It uses 2N3904 transistor and LM386 amplifier to find and make AM signals louder. Circuit is good for beginners and people who want to learn about radio and electronics. We can also […]
AM Radio Receiver Circuit using IC TA7642
TA7642 IC is very sensitive chip for AM radio. It needs few extra parts and works on low voltage. Circuit is good for small and efficient radios. In this post we will see AM Radio Receiver Circuit using IC TA7642. Here we have explained each part and have given easy steps to build. TA7642 is […]
Magnetic Proximity Switch Sensor Circuit
Magnetic Proximity Switch Sensor Circuit can feel magnetic field. It is used in factory, security and automation. Main part is magnetic reed switch as sensor. ICs like 555 timer and CD 4013 flip-flop turn relay ON/OFF when magnet is close by. Relay control other device ON/OFF. Circuit need stable 12V power for good working. Circuit […]