4 simple transistor tester circuits
This is the Transistor tester circuit into PCB. When your project do not works, the tester electronic parts or component be what need very much. Read more
Meters & Detectors
555 audio simple ohmmeter circuit
This is 555 audio simple ohmmeter circuit. Some times, we need to measure roughly resistances only. we can know resistances by audio also fast check. […] Read more
Simple capacitance measurement circuit using IC-555
Simple capacitance measurement circuit using IC-555, with the frequency counter as digit number display, that can measure the period.To show value directly […] Read more
6 Simple Logic Probe circuits ideas
Logic probe circuit is useful tool to check digital. As meter is used to measure power in electrical. it used for detect logic “1” and “0” or pulse[…] Read more
Lie detector circuit
See and try building Lie detector circuit. The resistance of human skin using transistors and LED displays is small and easy application. Read more