The continuity tester is for tracing wiring on printed circuit boards. It only consumes any appreciable power when the test leads are shorted, so no On...
This article describes the Recording and Measurement Microphones (OPA2134). The content is very simple, very helpful. Components in this article can he...
Testing SCR using a multimeter. A multimeter can be used to test SCRs quite effectively. The first procedure is to check the diode action between the g...
Figure 1 The circuit was aimed to measure the variation in magnetic and electric fields by designing an electromagnetic probe with a headphone socket a...
The unknown resistance is put in series with a known standard and a current passed through the pair. The voltage developed across the unknown is applie...
This Simple Voltage and Current tester can be used to measure the forward Voltage drop and current through Semiconductor Diodes like LED, Infrared diod...
Description. This circuit can be used to test whether mains voltage is present or not without having electric contact with mains line. The CMOS IC CD40...
IRF9540N Gate Charge Test Circuitis schemed in the diagram below. IRF9540N is known to be rectifier device with advanced processing techniques to achie...
The battery tester uses four transistors and two LEDs to indicate the condition of any battery you want to test. Q3 and Q4 are connected in a Darlingto...
This article describes the Bipolar Transistor Tester (CD4069). The principle is very simple, very practical. The circuit components can help you unders...
An Intersil 7101 31/2-digit A/D converter is used to display the duty cycle of a pulse train as a percentage. The frequ ency range of this circuit is 1...
This article describes the 4-20mA Current Loop Tester (ADS8505IDWG4). The principle is very simple, very practical. The circuit components can help you...
This is a Cable Reflection Tester circuit. This circuit can be used to check coax cable runs for shorts or even impedance mismatches. This circuit will...
The schematic diagram below shownno-load test cranking hookup of 5-MT Motor Series. Cranking motors test of no load may lead to specific defects, may i...
This article briefly describes the Frequency Multiplier For LF Measurements (4046). Although this circuit is very easy to understand, but also very pra...
Circuit diagram I call this the huntron circuit because a company by that name made a similar device. It is useful for trouble-shooting. I used it with...
Circuit diagram: Having good contacts is important – not only in your daily life, but also in electronics. In contrast to social contacts, the reliab...
All types of transistors including Darlington and power will be tested in this project. Connect the 9v battery around the other way at points A and B t...
Here is an ideal Network Cable tester to check whether RF signal is present in the Network Cable or not. It is a non contact version tester and can det...
This was a Beta Hfe and Vce Measuring Instrument used in Incoming Inspection of Power Transistors made by me 16 years back. Related Resources - Testing...
The input consists of two comparators that operate with different reference voltages supplied by separate potential dividers. Divider R3/R4/R5 provides...
It is essential for success in electronics to understand the contents of this page. The material is easy to read and understand as theory, but it is im...
Figure 1 Battery level indicators generally detect the voltage levels of the batteries to give a result. So, tester circuits must not be a heavy load d...
This unit uses switches and resistors to provide a number of current ranges. It allows you to test most of the meters availabl e at surplus outlets, an...
Description Here is a simple tester for checking the basic operations of an infrared remote control unit. It is low-cost and easy to construct. The tes...
For all the beloved home hobbyists, you’re very familiar with the transistor, as it’s one of the essential electronics components, which is commonl...
This article describes the Battery Tester For Deaf and Blind Persons (1N4001). The principle is very simple, very practical. The circuit components can...
This article describes Multiple Continuity Tester (MAX4322). The principle is very simple, very practical. The circuit components can help you understa...
LM135 Basic temperature measurement circuit Reprinted Url Of This Article: http://www.seekic.com/circuit_diagram/Measuring_and_Test_Circuit/LM135_Basic...
This article describes the Car and Motorcycle Battery Tester (LM3914). The principle is very simple, very practical. The circuit components can help yo...
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