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 […]
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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 […]
LED Brightness and Efficiency Tester Circuit
The post details a simple LDR brightness and efficiency tester circuit set up using an LDR and a digital Ohm meter. The idea was requested by Mr. Prashant Technical Specifications […]
4 Simple Continuity Tester Circuits
If you are looking for a simple circuit for test continuity of wires and long conductors, the explained 4 circuits are the ones which you can try and might fulfill […]
Measure Low Resistances below 1 Ohm with this Circuit
The low resistance meausring circuit explained below can be used for measuring all resistances below 1 ohm with extreme accuracy. The resistance to be measured can be as low as […]
Match Transistor Pairs Quickly using this Circuit
In many critical circuit applications, like power amplifiers, inverters, etc it becomes necessary to use matched transistor pairs having identical hFE gain. Not doing this possibly creates unpredictable output results, […]