This is the simple project of small sound amplifier for ears or often called hearing aid device or hearing loss…
This is the circuit diagram of TRIAC, SCR and Transistor tester. This is a very simple circuit which can be…
Here is the simple and low cost mosquito repellent circuit design. The circuit serves to keep the mosquitoes out of…
This is the circuit design of the protector for electronic appliance with three-phase power supply. Many of electronic appliances need…
This is the schematic diagram of LED indicator for 220V AC Mains which can be used to indicate that the…
The is a simple and versatile 12 stage water level indicator circuit which will show you the current water level…
This is indicator circuit to indicate that there is blown fuse, it will show the condition of fuse through LEDs.…
This is the circuit diagram of electronic quiz button table. This circuit is simple, easy to built and of course…
Here the low resistance connection tester which can be used as cable or wire tester, soldered joints and other types…
This is the circuit diagram of zener diode tester which tests zener diodes with breakdown voltages extending up to 120…