A dip meter or a grid dip meter can be considered as a kind of frequency meter whose function is to determine the resonant frequency of an LC circuit. For this, the circuits don't have to … [Read more...] about Grid Dip Meter Circuit
Simple Circuit Tester Probe – PCB Fault-Finder
This simple circuit tester can be used for detecting short circuits, abnormal resistance conditions, continuity breaks etc inside an assembled circuit board or a PCB. The indication will be through an … [Read more...] about Simple Circuit Tester Probe – PCB Fault-Finder
Alcohol Detector Meter Circuit using MQ-3 Sensor Module
An alcohol detector is a sensitive device which is able to detect the presence of alcohol molecules or any similar volatile inflammable element in the air and convert it into equivalent level of … [Read more...] about Alcohol Detector Meter Circuit using MQ-3 Sensor Module
Use this Capacitor Tester to Find Leaky Capacitors Quickly
This simple capacitor tester is capable of testing electrolytic capacitors in the range of 1uf to 450uf. It can test large start and run capacitors as well as 1uf miniature capacitors rated at 10v. … [Read more...] about Use this Capacitor Tester to Find Leaky Capacitors Quickly
How to Make a Simple Milliohm Tester Circuit
I wanted a milliohm tester circuit that could be used to measure resistance on printed circuit boards to track down shorted components. I looked at several designs and combined several ideas into this … [Read more...] about How to Make a Simple Milliohm Tester Circuit
Simple Transformer Winding Tester Circuit
This test set is primarily designed to test step-down, step-up transformers, for open and shorted winding. It can determine if the device under test has a low resistance to ac current. It can also … [Read more...] about Simple Transformer Winding Tester Circuit