The rectifying properties of selenium were first discovered in the 1876 and the Edison effect and rectifying properties related to the two pole vacuum tube were discovered eight years after that in 1884. Thus the history of using semiconductors to create diodes actually goes back before that of the

Troubleshooting tough dog (difficult to repair) problems consumed you lots of time and another problem that take you lots of time is to locate the original spare part numbers. You may take couple of minutes to find a bad components but because of no spare parts available in your component's compartm

LED, or light emitting diode, technology is something consumers are hearing more and more about from television advertisements, magazine ads and news reports. However, very few people understand why this light source is such a powerful alternative to traditional lighting. The advantages of LED light

The complaint for this Samsung 510BN LCD monitor was no power, after the cover was opened I found that the power filter capacitor still hold some charge and the voltage was quite high. A good monitor by right the filter capacitor stored voltage should be discharge in less than 10 seconds. This indic

Diode laser hair removal is the one of newer forms of laser hair removal on the market but is currently among the most popular of all laser hair removal options which may make it more readily available in your home area.As with other newer laser hair removal options, the Diode laser has limited rese

What is an LED? It's a light-emitting diode; it is used in several kinds of electronic devices. What an LED does is it's basically a semiconductor that puts out an electrical current. You know LEDs that are used in flashlights, ultraviolet lights, and infrared. Plus the Ultraviolet LED can be used a

A LED is a p-n junction diode that is capable of emitting light. An LED operates just like a regular p-n junction diode. Diodes must be forward biased for current conduction.What differentiates an LED from a regular diode is the semiconductor material used to form the p-n junction - regular diodes a

First let me start by defining what an LED light bulb is.  The LED light bulb is actually a cluster of individual units.  These clusters produce light, different combinations gives us different colors.  This lighting falls in a category call SSL (Solid State Lighting).  Simply pu

Testing diodes is different from testing a resistor because you need a skill to do it. If you do not know or wrongly test a diode you will be unable to repair the equipment. A bad diode you think it is good. This will definitely waste your precious time.A rectifier diode can fail in one of the four

You might have heard of diode laser hair removal. This article explains what is diode laser hair removal, the good and the bad things about it.What Actually Is This Diode Thing?The diode laser is an extremely proficient machine made up of tiny diodes or semiconductors. They are assembled together to