• Continuity tester for pcb

    2016-01-28 08:28:25103

    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...

  • Recording and Measurement Microphones (OPA2134)

    2016-01-28 08:20:58176

    This article describes the Recording and Measurement Microphones (OPA2134). The content is very simple, very helpful. Components in this article can he...

  • How to test an SCR

    2016-01-28 08:04:3275

    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...

  • Electromagnetic Field Measurement Probe

    2016-01-28 07:32:4777

    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...

  • Ratiometric resistance measurement

    2016-01-28 06:59:1767

    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...

  • Voltage and Current Tester

    2016-01-28 06:16:1067

    This Simple Voltage and Current tester can be used to measure the forward Voltage drop and current through Semiconductor Diodes like LED, Infrared diod...

  • Wireless mains voltage tester.

    2016-01-28 05:38:0686

    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 Circuit Schematic and Datasheet

    2016-01-28 04:34:5187

    IRF9540N Gate Charge Test Circuitis schemed in the diagram below. IRF9540N is known to be rectifier device with advanced processing techniques to achie...

  • Battery Tester Circuit

    2016-01-27 23:57:3767

    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...

  • Bipolar Transistor Tester(CD4069)

    2016-01-27 23:34:3383

    This article describes the Bipolar Transistor Tester (CD4069). The principle is very simple, very practical. The circuit components can help you unders...

  • Duty-Cycle Measurer

    2016-01-27 22:36:3870

    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...

  • 4-20mA Current Loop Tester(ADS8505IDWG4)

    2016-01-27 20:52:5283

    This article describes the 4-20mA Current Loop Tester (ADS8505IDWG4). The principle is very simple, very practical. The circuit components can help you...

  • Cable Reflection Tester

    2016-01-27 19:01:2972

    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...

  • 5-MT Cranking Motor of No Load Test Schematic Circuit

    2016-01-27 17:57:5069

    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...

  • Frequency Multiplier For LF Measurements(4046)

    2016-01-27 17:54:1667

    This article briefly describes the Frequency Multiplier For LF Measurements (4046). Although this circuit is very easy to understand, but also very pra...

  • Oscilloscope testing module (huntron circuit)

    2016-01-27 16:51:4872

    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...

  • How to build Components Voltage Tester Circuit Schematic

    2016-01-27 14:29:1286

    Circuit diagram: Having good contacts is important – not only in your daily life, but also in electronics. In contrast to social contacts, the reliab...

  • Audible Transistor Tester (CA3035)

    2016-01-27 13:57:3276

    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...

  • RF Network Cable Tester

    2016-01-27 13:23:2673

    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...

  • Transistor Beta and Vce Tester

    2016-01-27 12:21:5385

    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...

  • Logic Tester

    2016-01-27 11:49:5367

    The input consists of two comparators that operate with different reference voltages supplied by separate potential dividers. Divider R3/R4/R5 provides...

  • Measuring Currents

    2016-01-27 11:42:1069

    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...

  • Economic Battery Sufficiency Tester by BC547

    2016-01-27 10:58:3066

    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...

  • Meter Tester

    2016-01-27 09:26:1971

    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...

  • How to build 220vAC Operated Remote Tester

    2016-01-27 08:50:0172

    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...

  • The Latest and High Tech Optical Transistor!

    2016-01-27 06:19:0961

    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...

  • Battery Tester For Deaf and Blind Persons(1N4001)

    2016-01-27 06:09:0763

    This article describes the Battery Tester For Deaf and Blind Persons (1N4001). The principle is very simple, very practical. The circuit components can...

  • Multiple Continuity Tester(MAX4322)

    2016-01-27 06:06:0466

    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

    2016-01-27 04:21:3869

    LM135 Basic temperature measurement circuit Reprinted Url Of This Article: http://www.seekic.com/circuit_diagram/Measuring_and_Test_Circuit/LM135_Basic...

  • Car and Motorcycle Battery Tester(LM3914)

    2016-01-27 00:57:3368

    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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