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LED circuits are very easy to design. An LED or Light Emitting Diode, is a very low current light source that is very safe and durable for use in your project. This article will show you how to...
There is a simple way that you can effectively increase and yes, even double the output power of your solar panel array. You do this without any special tools or having to spend more money on...
Modifying your 5mW green laser pointer for more output power is something a lot of laser fans are interested in. While higher output powers can be expensive, a simple low power laser pen can...
One of the biggest breakthroughs in computer technology that we hardly think of these days is the mouse. Originally, everything done with computers was done with keystrokes, but that all changed...
An alternator is a small electric generator that works on the same principles as power plants and other generators. When a magnetic field moves through a conductor, it produces an electric field....
Diodes ensure that current flows in just one direction. Resistors control how much current flows through a circuit. Both are marked with colored stripes that mean nothing to a person who doesn't...
Think of a diode as a one-way electronic valve for electricity. When the diode is in forward bias, the diode allows current to flow towards the cathode leg. In a reverse bias current is blocked...
Using a multimeter is one of the most basic skills in electronics. Reading a multimeter is not hard but requires some basic electronics knowledge. Both digital and analog (measurements are...
This is another good use for the solar panel used on the huge amounts of garden LED lights around, coupled to a portable radio that runs off 2 or 3 AA cells. Most of us have an old radio lying...
Learn how a light emitting diode (LED) works in this free home maintenance video.
A semiconductor can be made by adding a small amount of impurity when forming a silicon matrix. This is called doping. Different impurities create a matrix which is either positive or negative....
Did you know you can wash your clothes, make a margarita, clear your driveway with a pedal powered snow plow, as well as many other energy saving ideas. All that; and keep in tip top shape as well.
Five basic electrical symbols tend to show up in electrical diagrams or schematics. By referring to the included image, you can match these to their definitions.
Solar energy is free energy, and that is appealing in a world of constantly rising energy costs. Commercial solar panels, however, are prohibitively expensive for most people. If you are a bit of...
A diode is a valve that makes electrical current flow in one direction. You can test if a diode is working with an multimeter. Here's how it's done.
Holidays bring out the best in people, but they also tend to be prime time for wasting a great deal of electricity and other essential resources. Here are a few tips on giving the planet a little...
There are a variety of common components used in electronic circuits, all which every electronics hobbyists should be able to identify. Of course, if you're working on a specialized projects, the...
A laser is defined as an optical device which emits a beam of light radiation. Unlike light from other natural and artificial sources, a laser is monochromatic, meaning it only casts light of a...
Learn how to de-solder a diode from a circuit board, using a solder iron and solder removal tool in this free video on soldering.
Learn how to test a diode to check if it works before soldering the diode to a circuit board in this free video.
The basic radio is made up of two parts: something that transmits and something that receives. The transmitting device, be it a television show, a citizen ban radio or a remote control airplane,...
Any laser is an optical device capable of projecting a highly focused beam of light. Their use has been primarily academic or technological. Lasers are used to read CDs and DVDs. Laser pointers...
Your car just died, you're stranded, but you're reluctant to use jumper cables because you're worried about causing a dangerous accident if you use them wrong. Relax. It's easier than you might...
Rectifier diodes, although hidden from sight, are a part of our everyday lives. These small semiconductors regulate the power in computers and the electrical power in our cars and trucks. Without...
LED stands for light emitting diode. These diodes can be found in many common devices such as flashlights and alarm clocks and offer many advantages over a traditional light bulb. LED's use a...
The Digital Motor Electronics (DME) relay unit is used on many Porsche and some BMW models. This is actually a double-relay-in-one component. The main relay is used to fire the DME control unit...
A blocking diode is a device that controls current flows inside of photovoltaic systems. It is one way that valves are used in electrical circuits, and it is very easy to use and convenient...
You don't need to be an expert in electronics to build a Bedini motor. This free energy generating machine, invented by John Bedini, is a great project for a beginner who wants to learn about...
Wiring a Dow Key relay is a simple task providing you have a solid working knowledge of your radio frequency (RF) system. There are a large variety of Dow Key relays and switches available. Some...
The Light Emitting Diode (LED) used to be only for science applications and the displays on some of the first hand-held calculators. Today, LED lighting is fast becoming the most energy-efficient...
A half-wave rectifier has a diode in it, and this diode will remove half of the signal from an alternating current. Find out how a full-wave rectifier works, in addition to a half-wave rectifier,...
When wiring LED lights, the most important aspect is to regulate the current flow to fit the resistance capacity of the light emitting diode. Put in a resister or use the resister that comes with...
Acne is a common skin issue that many people face. It is produced when internal oil and bacteria clog and infect a pore, resulting in pimples or zits. Acne laser treatments are popular and...
You can use solar power to charge your rechargeable batteries. This is not only a green practice; it can reduce the amount of electricity you use. Building a solar-powered battery charger requires...
Laser hair removal is a popular form of permanent hair removal. The laser machines work by transmitting a diode light that targets dark hair follicles and disables them. At this point, most lasers...
The definition of LED is light emitting diode, which is now used in traffic lights, tail lights, alarm clocks, flashlights and many other products. Find out how LEDs save energy with helpful...
LED lights can be found in many products that are used every day. LED lights are energy-efficient and produce almost no heat in comparison to incandescent and fluorescent lights
LED stands for light-emitting diode. When a current is passed through a diode, it emits light. LEDs are increasingly used in consumer products because of reduced production costs.
When power comes into a building, it is in AC, or "alternating current." AC current switches back and forth from positive to negative 60 times a second. It is carried into the building on the live...
LED lights can be found in many products that are used every day. LED lights are energy-efficient and produce almost no heat in comparison to incandescent and fluorescent lights The LED light was...
Electric power comes into your house as AC, or alternating current. The live wire cycles continuously from positive to negative, changing at 60 hz, or 60 times every second. DC, or direct current,...
Laser pointers can be useful tools and a great way of messing with your friends and your poor confused feline house guests. Paying for a commercial laser pointer can set a person back $100 for a...
LEDs, or light-emitting diodes, are an energy-efficient alternative to traditional fluorescent and incandescent bulbs, including those used in Christmas tree lights. LEDs work by...
A laser pen is composed of a laser diode, a battery, and possibly a lens. Many laser pointers are red or green lasers, depending on the quality. Red lasers are less powerful than green lasers in...
The Lego Solar Cell is manufactured by a company called eLab, and is part number W979912. It was developed in conjunction with Shell Renewables in order to teach children about sources of...
LED lights can be found in many products that are used everyday. LED lights are energy-efficient and produce almost no heat in comparison to incandescent and fluorescent lights The LED light was...
Making a very powerful burning laser from an old DVD burner is easy. It will light matches, burn through cardboard and melt plastic (burning through it if allowed). The light is very intense.
A diode bridge rectifier is a device for converting AC, or alternating current electricity into DC, or direct current. AC electricity goes from positive to negative constantly, whereas DC always...
A battery isolator separates multiple batteries from one another to ensure that a vehicle has access to a backup power source. In addition, a battery isolator ensures that a vehicle's electrical...
A standard laser pen does not have the power to burn objects, but the laser diode can be upgraded using computer components.
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