A microamp meter or microammeter is a device that allows the user to measure extremely small current levels, in microamps, which is normally not possible to measure using conventional multimeters. […]
Simple Crystal Tester Circuit
In this post we discuss how to build a simple crystal tester circuit using ordinary parts like transistors, resistors, diodes and capacitors. What is a Crystal A crystal can be […]
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 […]
Test Static Electricity with this Electrometer Circuit
Since modern electronics involves a lot a CMOS ICs and power devices like MOSFETs, static electricity can be a reason of some concern. Because a static charge can easily kill […]
Universal BJT, JFET, MOSFET Tester Circuit
This useful transistor tester allows the user to quickly check the functionality of an NPN/PNP transistor, JFET or (V)MOSFET as well as determine the orientation of their terminals, or the […]
3-Digit LED Capacitance Meter Circuit
This project is yet another test equipment that can be extremely handy to any electronic hobbyist, and building this unit can be a lot of fun. A capacitance meter is […]