• How to test a diode

    2016-04-25 09:18:1071

    Diodes are one of the components that can be tested very easily.Ordinary diodes as wells as Zener diodes can be checked by using a multimeter. While te...

  • How to test a triac.

    2016-04-25 09:16:3963

    Testing triac using a multimeter. A multimeter can be used to test the health of a triac. First put the multimeter selector switch in a high resistance...

  • How to test an SCR

    2016-04-25 08:49:1465

    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...

  • Wireless mains voltage tester.

    2016-04-25 08:45:5384

    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 CD4...

  • Transistor tester circuit

    2016-04-25 07:30:1476

    This article discusses various circuits that can be used to test a Transistor, both NPN and PNP. We have structured this article into two circuits. If ...

  • How to test a thermistor

    2016-04-25 07:00:3964

    T hermistors are of two types, NTC (negative temperature coefficient) and PTC (positive temperature coefficient types). As their name indicates the res...

  • How to test an LDR

    2016-04-25 06:29:3664

    LDR (light dependent resistance) can be very easily tested by using a digital multimeter. We all know that the resistance of an LDR varies according to...

  • How to test a relay

    2016-04-25 02:59:1861

    This article shows you how to test a relay. A relay will usually have a coil, pole terminal and a set of contacts. The set of contacts that are open wh...

  • Zener diode tester

    2016-04-25 01:28:4069

    Description. Here is a very simple circuit that can be used for testing Zener diodes. The IC1 NE555 is wired as an astable multivibrator and the output...

  • Latest Miniature Electrodes for Your Body

    2016-04-25 01:21:4567

    The brain and heart may be the vital parts of our body, but the external force that controls the whole body is electricity. Electricity is responsible ...

  • How to test FET’s-Jfet and Mosfet

    2016-04-25 01:02:1076

    All the testing methods below uses a multimeter and hence its How to test FETs especially the JFET and MOSFET using a multimeter. How to test an FET ? ...

  • Latest Discovery – Neutrinos That Move Faster Than the Spee

    2016-04-24 21:31:4463

    From our childhood days, we have studied that nothing in this planet travels faster than light. It has been defined as the ultimate speed in our univer...

  • Sense of Time tester circuit.

    2016-04-24 21:28:1061

    Description. W hen S2 is ON ,the circuit here operates as an astable multi vibrator and the LED is lit for about o.1sec,flasing every 1.5 seconds.Since...

  • How to test a capacitor.

    2016-04-24 21:21:5868

    T his article shows you how to test a capacitor using analogue multimeter. Firstly short the capacitor leads for discharging it completely. Set the mul...

  • Latest Discovery – World’s Lightest Mate

    2016-04-24 18:40:2563

    Microlattice Material When it comes to light weight materials, the first thing that comes to our mind is Thermocol. Since its discovery in the year 194...

  • Quartz crystal tester circuit

    2016-04-24 17:25:5670

    Description. This a very simple and inexpensive circuit that can be used to test quartz crystals.Here a Colpitts oscillator is wired used the transisto...

  • Testing a UJT

    2016-04-24 15:53:2862

    UJT (Uni junction transistor) can be easily tested by using a digital multimeter.The three steps for testing the health of a UJT are as follows. 1. Mea...

  • Latest Stunning Pictures of the Sun by NASA

    2016-04-24 14:40:3662

    On February 11 th , 2010, NASA launched a new spacecraft called the Solar Dynamics Observatory [SDO], which was designed to give more knowledge and cle...

  • Humidity tester

    2016-04-24 13:44:3364

    Description. A variety of humidity tester circuits are available, but this  is a circuit which is as simple as possible. Using only a transistor, LED ...

  • Tester cristale cuartz quartz

    2016-01-30 20:09:2572

    Adaugat in Masura/control | fara comentarii Mai multe scheme cu: testere La acest tester de cristale quart un LED va indica daca cristalul testat oscil...

  • Fastest Quiz Bell/Alarm

    2016-01-30 19:49:4073

    This is aquiz bell/alarm circuit. This circuit indicate fastest finger first. This circuit has one bulb for Quiz master and one for each contestant. Th...

  • Wind Direction and Airflow Measurement

    2016-01-30 19:43:2775

    View Full Size Image View Original Datasheet The LTC2990 is used to monitor system temperatures, voltages and currents. Through the I2C serial interfac...

  • Breath-alert-alcohol-tester

    2016-01-30 18:47:0074

    When power is applied to the circuit, the heater coil in the sensor is energized by the 5-V output of IC5, a 7805 voltage regulator. Breathing into the...

  • Voltage and Current Limited Audible Continuity Tester (1N916

    2016-01-30 18:37:3280

    Using this continuity tester circuit, a failure of? PCB tracks be examined without looking directly at the tracks routing, which is can be very frustra...

  • ADC to the BSII to measure voltages (MAX187)

    2016-01-30 18:00:3666

    This article describes the ADC to the BSII to measure voltages (MAX187). The content is very simple, very helpful. Components in this article can help ...

  • Zener diode tester electronic project

    2016-01-30 14:44:5796

    Various circuits design Using electronic scheme below can be designed a zener diode tester using few electronic parts. Using this zener tester and a mu...

  • Good/Bad Transistor Tester

    2016-01-30 14:13:0381

    Good/Bad transistor tester means that this instrument can only determine if the transistor is good or bad, nothing more. Any transistor with gain equal...

  • TDA7088T Test Circuit Schematic for Mechanical Tuning and Da

    2016-01-30 14:06:4474

    TDA7088T Test Circuit Schematic for Mechanical Tuningis shown in the herein illustration diagram. This TDA7088T device used to be applied for mono port...

  • Fuel-cell battery tester

    2016-01-30 13:56:44113

    This circuit was designed for testing fuel cells, but it could also be used for testing batteries under a constant current load. It provides a dynamic,...

  • Voltage and Current Limited Audible Continuity Tester

    2016-01-30 13:06:1266

    Using this continuity tester circuit, a failure of PCB tracks be examined without looking directly at the tracks routing, which is can be very frustrat...

Maybe you like