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 […]
Meters and Testers
If you think yourself as a serious electronic researcher or hobbyists you would surely want to have the best of the test equipment on your workbench.
The most important and perhaps the basic test instrument are the meters, which are so indispensable that electronic enthusiasts simply cannot think of working without these measuring devices.
The following posts unravel a large collection of such devices specially configured for measuring most of the parameters involved with electronic circuits.
Here you will find homemade multi-meters in the analogue range using simple opamps, and also digital meters using discrete ICs, and if you are one of those who only prefer to have custom programmed ICs in your test instruments, in that case we also have specialized Arduino based digital measuring systems.
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 […]
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 […]
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 […]
This simple MOSFET tester does a quick job of testing both enhanced mode type N and P-channel mosfets. It checks for shorts between gate, drain and source. Designed By: Henry […]
In this post we learn how to make a simple yet efficient transistor/diode tester circuit, that will not only test the quality of a BJT, but will also help to […]