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A dead 12-volt battery is one that can no longer maintain its charge for any long period of time. More often than not, the battery has to be disposed of. But there are a few you tricks you can try...
Clamp-on amp meters (better known as clamp-on ammeters) measure electric conductors of electricity with a sensor in-between the jaws of the clamp. In some applications, electricians pass the test...
The function of a voltage regulator is to modify the voltage in a circuit. These devices are necessary because the raw voltage from a power source frequently varies outside the operational range...
A smart battery charger is built to monitor a battery as it charges and indicate when it is fully charged. This helps prevent you from overcharging and possibly damaging the battery. In order to...
Resistors are electrical components that help control current flow in a circuit. A high resistance means that there is less current available for a given voltage. The temperature of a resistor...
In 1827 Georg Simon Ohm published the group of electrical laws that bear his name. Electrical engineering students have been trying to memorize them ever since with mixed success. Here's an easy...
Transistors are somewhat outdated electronic components that were most commonly used in radios. They mainly function as amplifiers of electric voltage.
A transistor is a semiconductor used for amplification or switching electrical signals. A transistor contains three terminals to connect with an external circuit. Biasing is the bias point on the...
The most verastile tool for most any pouch
A voltage meter is a device that is used to measure the strength of an electrical current flowing within an electrical circuit. Essentially what it does is measure the electrical potential (the...
Deep cycle batteries should be equalized every month or so, along with their regular charging. Equalizing refers to a steady, controlled overcharge of the battery that causes the electrolyte...
A dual bank charger has the advantage of being able to recharge two battery banks simultaneously. The mechanism is simply an extra port on the charger frame that allows for multiple plug-ins. This...
Electric motors are designed to run on specific voltages. If you put too much voltage through the motor, the circuitry and wiring will be damaged. This is due to the fact that the electricity...
A variable frequency drive (VFD) is an electrical variable speed drive that is added to motor-driven systems to help save energy. Motor-driven systems are designed to handle peak loads. When...
There are several ways to convert AC to DC power. This article contains a description on how to convert AC to DC power using several different types of power supplies including a switching power...
Relays are used in a wide variety of applications in automobiles, from intermittent windshield wipers to cruise controllers, flashers, foglamps, stereo equipment and air-conditioning units. Their...
A relay is an electrically operated switch used to isolate one electrical circuit from another. In its simplest form, a relay consists of a coil used as an electromagnet to open and close switch...
A relay is an electrically operated switch used to isolate one electrical circuit from another. In its simplest form, a relay consists of a coil used as an electromagnet to open and close switch...
A relay is an electrically operated switch used to isolate one electrical circuit from another. In its simplest form, a relay consists of a coil used as an electromagnet to open and close switch...
A relay is an electrically operated switch that isolates one electrical circuit from another. In its simplest form, a relay consists of a coil used as an electromagnet to open and close switch...
Relay switch contacts can be "normally open" (NO) or "normally closed" (NC), that is, when the coil is at rest and not energized (no current flowing through it), the switch contacts are given the...
Relays are used in many different applications in automobiles, from intermittent windshield wipers to cruise controllers, flashers, fog lamps, stereo equipment and air-conditioning units.
Shunt resistive circuits are used for bypassing a specific amount of current around precision electronic instrument. The most common of these circuits used for bypassing, or shunting, is in an...
Capacitors play an important role in many electric motors. Generally, two types of capacitor applications are employed. These are starting capacitors, which assist motor starters in turning over...
Testing the battery voltage of an automobile can provide lots of information. If the voltage is low when the car is off, you could have an IOD, or ignition off draw. If the battery is low when the...
If you want to know how to test a transformer then you have come to the right place.
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