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Printed circuit boardWikipedia

A printed circuit board (PCB) mechanically supports and electrically connects electronic components or electrical components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate. Components are generally soldered onto the PCB to both electrically connect and mechanically fasten .

How to Make a Professional Printed Circuit Board: the

How to Make a Professional Printed Circuit Board: the Complete Guide: Hello everybody, today I will show you how to make professional PCB, to improve your electronic projects. Let's start !

Used IT Equipment Buyers | Electronics Recycling Companies

Does your company produce precious metal bearing electronic scrap, including populated circuit cards, connectors with gold contacts, processors, gold wire bonding, etc.? Do you have an excess inventory of this scrap taking up valuable space? JHI can help you get that recycled in an efficient and environmentally safe manner.

How to Wire a Simple 120v Electrical Circuit (with Pictures)

 · How to Wire a Simple 120v Electrical Circuit. Hiring an electrician is usually the best way to go where 120 volt circuits are concerned, but if you are up to it, you might save money by doing some basic electrical work yourself. This.

4 Ways to Control Electronic Relays | Make:

 · The switch’s throw attribute describes the number of circuit paths provided by the switch. A Single Throw (ST) has only one circuit path. With the switch thrown one way, current flows through the circuit, with it thrown the other way, the circuit is broken and no current flows. A Double Throw (DT) switch offers two circuit paths.

Circuit Board PartsThe Most Comprehensive Introduction

While it is a great hobby, do-it-yourself computer kits require some knowledge of what printed circuit board parts and what complaints go on them. All electric equipment has one or more circuit boards. These board, in turn, contain several components that work together to create the desired effect.

Circuit BoardChina PCB, PCBA Manufacturers/Suppliers on

View reliable Circuit Board manufacturers on Made-in-China.com. This category presents PCB, PCBA, from China Circuit Board suppliers to global buyers.

Procedure for Dismantling Waste Electrical and Electronic

Procedure for Dismantling Waste Electrical and Electronic Equipment (WEEE) SCOPE This procedure describes the process for dismantling Smith & Nephew Endoscopy branded electronic/electrical products manufactured and/or sold within the EU in compliance …

Guide for Identifying Mercury Switches/Thermostats in

 · Prepared by: Jim Giordani, Burlington Board of Health, Revised 12/27/00 Contact Todd Dresser for Further information at (781) 270-1956 - 2 - Guide for Identifying Mercury Switches/Thermostats In Common Appliances This reference contains guidance for responding to a mercury spill, and how to recycle mercury bearing products. This document also

Ten Rules for Jumper WiresCircuit board rework and repair

If a jumper wires passes over an unused land or pad sufficient slack should be provided so that the jumper wire can be moved out of the way should a component need to be added. Jumper wires should not pass over pads or vias used as test points. Once jumper wires have been added to a circuit board, the less they are disturbed or moved, the better.

Ten Rules for Jumper WiresCircuit board rework and repair

If a jumper wires passes over an unused land or pad sufficient slack should be provided so that the jumper wire can be moved out of the way should a component need to be added. Jumper wires should not pass over pads or vias used as test points. Once jumper wires have been added to a circuit board, the less they are disturbed or moved, the better.

L1 Practice Exam (Ignition Systems Diagnosis) Flashcards

38. An engine miss is being diagnosed on an OBD II (On-Board Diagnostics level 2) system equipped with a waste-spark-type El (electronic ignition). Each plug wire is removed and a spark tester is installed one at a time. Only one spark plug does not fire the spark tester. Technician A says the ignition module is the MOST likely cause.

Electrical and electronic equipment (EEE) covered by the

 · work out if the EEE you produce is covered by the waste electrical and . wiring, circuit boards or electric motors built . roller screens with electronic winders; sockets, switches, dimmers .

PCB Basicslearn.

Printed circuit board is the most common name but may also be called "printed wiring boards" or "printed wiring cards". Before the advent of the PCB circuits were constructed through a laborious process of point-to-point wiring. This led to frequent failures at wire junctions and short circuits when wire insulation began to age and crack.->

Model Railroad and Misc. Electronics

 · The circuit on this page is for a fast acting electronic circuit breaker for use with fixed and variable, low voltage AC and DC systems such as model railroad throttles. The circuit breaker's trip current setting has an adjustable range of 0.5 to 10 amps. Circuit Breaker

Electronic wasteWikipedia

Electronic waste or e-waste describes discarded electrical or electronic devices.Used electronics which are destined for reuse, resale, salvage, recycling, or disposal are also considered e-waste. Informal processing of e-waste in developing countries can lead to adverse human health effects and environmental pollution.. Electronic scrap components, such as CPUs, contain potentially harmful .

How to Make a Simple Electrical Circuit: 14 Steps (with

 · To make a simple electrical circuit with a battery, use wire strippers or scissors to strip the ends of a length of insulated wire, but do not cut all the way through the wire. Install your batteries in a battery pack, then attach your wires to the battery pack using a battery snap or electrical tape.

Wiring DiagramEverything You Need to Know About Wiring

When and How to Use a Wiring Diagram. Use wiring diagrams to assist in building or manufacturing the circuit or electronic device. They are also useful for making repairs. . a switch will be a break in the line with a line at an angle to the wire, much like a light switch you can flip on and off. A resistor will be represented with a series .

Ignition System Diagnosis and ServiceGoMoG

• A good coil and ignition system should produce a blue spark at the spark tester. 3 . check for an open circuit at the ignition switch or wiring. 5 Electronic Ignition Troubleshooting Procedure (continued) . Ignition System Diagnosis and Service .

Resistors | Ohm's Law | Electronics Textbook

The various components on this circuit board are identified by printed labels. Resistors are denoted by any label beginning with the letter “R”. This particular circuit board is a computer accessory called a “modem,” which allows digital information transfer over telephone lines.

Electrical Stock Photos And Images123RF

Download Electrical stock photos. Affordable and search from millions of royalty free images, photos and vectors. Photos. Vectors. . Abstract background with wire plug and socket. Concept connection,.. Vector. Similar Images . Young handsome man soldering a circuit board and working on fixing.. Similar Images . Add to Likebox

Dishwasher Electrical Problems | Chapter 6 | Dishwasher

Designers use microprocessors (basically computers, on solid state circuit boards) to adapt the functions of the dishwasher to current wash conditions. However, the computer needs some kind of input in order to make decisions. . The wiring and switches that are shown as thick lines are inside of the timer. . Thermador Waste King Dishwasher .

Build a Simple Water Level Control: 8 Steps (with Pictures)

Build a Simple Water Level Control: About 20 years ago, a friend of mine came to me saying that he had to repair a customer’s water level control made out of electromechanical relays which was falling apart. He understood that the original control relied on conductivity of water.

MOSFET as a SwitchUsing Power MOSFET SwitchingBasic

Electronics Tutorial about the power MOSFET as a Switch and using the MOSFET as a Switch to control relays, motors and other high current electrical loads . doing so becomes expensive and impractical in both components and circuit board space. . The two MOSFETs are configured to produce a bi-directional switch from a dual supply with the .