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Published by chandan puri 230 months ago in Electronics Repairs | +0 votes | 0 comments
Test Equipment Depot sells test equipment and products for electronics. The test equipment they sell is from name brands like: BK Precision Weller EZ Digital Fluke Tektronix Hewlett Packard Xcelite Fisher Labs Flo-Dynamics And many other name brands Test Equipment Depot sells hundreds of products and test equipment for the electronic industry from AC Ground Integrity Analyzers to Wood Moisture Meters and everything in between. They sell both new and pre-owned refurbished electroni...
Published by Sam Montana 66 months ago in Electronics Repairs | +4 votes | 0 comments
Newark.com sells thousands of electronic products and parts from over 500 well known brands. Their parts categories include: Automation and process control Batteries and chargers Wire, cable and assemblies Fans, heat sinks and HVAC Office and computer Opteoelectronics Semiconductors Switches and relays Tools Electrical and much more. Newark.com also provides the following services: Technical support Calibration Cut tape re-reeling Robotic solutions Alternative solutions An...
Published by Sam Montana 66 months ago in Electronics Repairs | +6 votes | 0 comments
HobbyPartz sells all types of parts for the radio control hobby. Their category of RC parts includes: Radio controlled cars RC boats RC planes and helicopters Radio systems Batteries Chargers/Balancer Motors, servos and gyros Engines LED lights FPV HD cameras RC flight simulators Tools Wires and tubes
Published by Sam Montana 66 months ago in Electronics Repairs | +2 votes | 0 comments
Test Equipment Depot is a distributor of brand named test equipment and refurbishes and calibrates pre-owned equipment for their customers. Their technicians and engineers restore the equipment to the manufacture’s original specification and condition required to meet the industry’s quality control standard. Test Equipment Depot specializes in repair of Hewlett Packard & Tektronix brand equipment, using only genuine OEM parts, maintaining affordable cost to customer. Test Equi...
Published by Iris McCammon 71 months ago in Electronics Repairs | +7 votes | 2 comments
Batteries Plus and Batteries.com are both large competitors in the online replacement battery business; however, they offer their customers different features. Which one is the best? Read this article to find out.
Published by Seth Morgan 72 months ago in Electronics Repairs | +0 votes | 1 comments
All-Battery.com or ApexBattery.com: which one offers the best? Read carefully to know which is the best online battery store which serves its customers better, providing good shipping and reasonable prices of different products. A comparison between the two will help you know the best one 
Published by Piya Rai 73 months ago in Electronics Repairs | +0 votes | 0 comments
Electrostatic Discharge (ESD) occurs when a circuit is created that allows electrons to rush from a statically charged body to another with an unequal charge. The electricity is released with a spark. The charge follows the path of least resistance, so it can occur between an electrical circuit ground, such as a doorknob or a computer chassis, and a charged body, such as a human hand. ESD can damage sensitive computer equipment.
Published by Shree Infosolution 82 months ago in Electronics Repairs | +2 votes | 1 comments
Zener Diode voltage Regulator As the zener diode is operated in the breakdown or zener region, the voltage across it is substantially constant for a large change of current through it. This characteristic permits it to be used as a voltage regulator. As long as input voltage Vln is greater than zener voltage V2, the zener operates in the breakdown region and maintains constant voltage across the load.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +2 votes | 0 comments
Full Wave rectifiers Vs. Bridge rectifiers Full Wave rectifiers Let take an example were the circuit employs two diodes D1 and D2 with centre tapped transformer. When the centre tap is grounded, the voltages at the opposite ends of the secondary are 180 degree out of phase with each other. During the positive half cycle of secondary, voltage at point A( Any Point in the circuit) swings positive with respect to ground O, the voltage at point B swings negative.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +1 votes | 0 comments
P-N SemiConductor A pure or intrinsic semiconductor can be doped with a pentavalent or trivalent material to obtain two basic type of semiconductor materials. These doped semiconductors are termed as N-type or P-type materials because the preponderance carriers within them are either electrons or holes respectively. The atoms within a semiconductor which contain extra electrons are negative ions possessing a negative charge.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +1 votes | 0 comments
P-Type Semiconductor Doping pure semiconductor materials with a trivalent element, such as Gallium (Ga), causes some of the semiconductor tetravalent atoms to be displaced by trivalent atoms. Each trivalent atom shares its valence atoms with three adjacent atoms in the semiconductor crystal lattice structure. However, the fourth tetravalent atom does not share a covalent bond because of the missing electron.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +1 votes | 0 comments
N- Type Semiconductor When a pure semiconductor material is doped with a pentavalent element such as arsenic (As), some of the atoms of the tetravalent semiconductor are replaced by As atoms. As atom has replaced one of the semiconductor atoms and is sharing four of its valence electrons with adjacent atoms in a covalent bond. However, the fifth electron is not part of the covalent bond and can be easily freed from the atom. This As atom is called as donor atom because it donates a free electr...
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +1 votes | 0 comments
Structure of germanium and Silicon Let us understand the atomic structure of two materials Germanium and Silicon, the most widely used semiconductors.Before we actually examine the structure of Germanium and Silicon atoms, it would be wise to understand the Structure of Atom.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +2 votes | 0 comments
Structure of an atom Three basic components: protons, neutrons and electrons make an Atom. The protons and neutrons are located in the nucleus or center of the atom while the electrons revolve around the nucleus in the orbits. The atom of each particular element will have a specific number of protons in its nucleus and an equal number of electrons in orbit if the atom is neutral (no charge).
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +2 votes | 0 comments
Hysteresis Vs. Copper Loss Vs. Induction Loss Hysteresis Another type of loss which occurs in the core of the transformer is called hysteresis. When iron is magnetized, its magnetic domains are arranged in a random pattern. However, if a magnetic force is applied, the domains line up with the magnetic field. In a transformer, the magnetic field will reverse direction many times each second in step with the applied AC signal.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +2 votes | 0 comments
Transformers are very competent devices. The losses in transformer dictate the design of the transformer. Power transformers in particular are designed so that losses are minimized. The losses can be broken down into several categories. Core Losses In power transformers the largest loss occurs in the core. Core losses can be divided into two separate parts as follows: Eddy Current Losses The cores of power transformers are generally made of soft iron or steel. Because iron and steel are good...
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +1 votes | 1 comments
How a transformer works The principle on which transformer action is based on is called electromagnetic mutual inductance. When current flows through a conductor, a magnetic field builds around the conductor. If alternating current is used, the magnetic field builds, collapses, builds again in the opposite direction and collapses again for each cycle of the applied current. Another conductor placed in this moving magnetic field will have an EMF induced into it. The transformer is a device whi...
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +0 votes | 0 comments
Capacitive Reactance It is the basic nature of a capacitor to oppose changes in voltage. In a DC circuit the capacitor will charge to the applied voltage. If the applied voltage is increased, the capacitor will charge to new higher value and if the applied voltage is decreased the capacitor will be discharged. In an AC circuit, the capacitor is constantly charging and discharging. The voltage across the capacitor is in constant opposition to the applied voltage. This constant opposition to chan...
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +0 votes | 0 comments
Average Value Vs. Effective Value Average Value When we examine one alternation of a voltage or current sine wave, we find that it increases from zero to a peak value and drops back to zero again. Since the voltage or current remains at the peak value for only an instant, the average voltage for the entire alternation must be less than the peak value.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +0 votes | 0 comments
Voltage Rise and Voltage Drop Testing In electronics and electrical work there are two kinds of EMF or potential difference. Both are expressed in Volts but they have a somewhat different characteristic.There is, however an important difference between the voltage rise and the voltage drop, if you hold a battery in your hand a potential already exists between the two terminals even though the battery is not connected in the circuit, the voltage rise exists.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +0 votes | 0 comments
Series aiding, series opposing, parallel, and series-parallel Battery Connection Cells can be connected together to increase the voltage or current rating. There are four different ways that cells or batteries can be connected. These are series aiding, series opposing, parallel, and series-parallel. Series Aiding Connection The cells are connected so that the positive terminal of the first connects to the negative terminal of the second; the positive terminal of the second connects to the n...
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +0 votes | 0 comments
Electrons, Protons and Neutrons As small as the atom is, it can be broken up into even smaller particles namely the electrons, protons and neutrons. These are the three basic building blocks which make up all atoms. Electrons, protons and neutrons have very different characteristics. Electrons, protons and neutrons are combined to form an atom. This particular discussion is on helium atom. Two protons and two neutrons are bunched together near the center of the atom.
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +0 votes | 0 comments
Understanding different terms used in Soldering Understanding different terms used in Soldering are essential before moving forward to the process of soldering and desoldering. Solder: is a metal alloy usually consisting of the elements lead and tin. 60/40 Solder: refers to 60% tin and 40% lead metal alloy. Rosin: is the flux contained in the hollow core of the solder and it is a non corrosive cleaning agent. Wetting: is the process of the solder molecules combining with the molecules of t...
Published by Nikhil Agarwal 84 months ago in Electronics Repairs | +1 votes | 0 comments
How to reuse an old desktop hard drive.
Published by Kevin Li 84 months ago in Electronics Repairs | +2 votes | 0 comments
The discovery of electricity provides a breakthrough in modern technology. Man was able to developed tools and equipment that uses electrical energy in different fields of work.
Published by hunterfact 85 months ago in Electronics Repairs | +0 votes | 0 comments
Published by Jerry Walch 110 months ago in Electronics Repairs | +3 votes | 0 comments
Published by Sheila Hrabal 110 months ago in Electronics Repairs | +6 votes | 11 comments
Published by Jerry Walch 111 months ago in Electronics Repairs | +2 votes | 2 comments
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