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How to Troubleshoot Transistor (BJT) Circuits Correctly

BJT troubleshooting techniques is a huge topic and therefore including 100 % solutions and strategies can be perhaps difficult within a single article. Basically, the user should know about a handful of fundamental moves and measurements which may enable him to spotlight the location of the problem and help recognize the remedy. Quite certainly, the … Read moreHow to Troubleshoot Transistor (BJT) Circuits Correctly

TV Remote Control Tester Circuit

Remote control tester circuit using an opamp

We all use remote control handsets for controlling various household devices such as TV, AC, Music systems, curtains etc, and sometimes we seem to have problems with these devices, or even a newly purchased remote controller unit occasionally seem to malfunction, and identifying the issue becomes quite difficult for us. This simple 2 transistor circuit … Read moreTV Remote Control Tester Circuit

Use this Capacitor Tester to Find Leaky Capacitors Quickly

capacitor tester circuit

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. Once you understand the timing cycle, you can test down to 0.5uf and up to 650uf. By Henry Bowman How to … Read moreUse this Capacitor Tester to Find Leaky Capacitors Quickly

How to Make a Simple Milliohm Tester Circuit

milliohm meter 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 project. By Henry Bowman Circuit Operation Referring to the schematic, the milliohm tester is powered by two 9 volt dry cells. The … Read moreHow to Make a Simple Milliohm Tester Circuit

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