| |
| |
|
Hardware Information |
|
Five Band Resistor Color Code-What Does The Last Band Of White Color Represent?
In electronic repair, most of the time i came across five band resistor color code. The purpose of using the five colour band resistor in a circuit is that it provide a more accurate value compare to the four color band. For example in order to get the value of 22.6kohm, with four colors band resistor you will not be able to find it. The most you can get is 22k(red,red,orange and gold). If with the five color band you will be able to calculate it (red, red, blue, red, brown)the last color which is brown represent 1% tolerance. You may go to google search engine and type resistor color code, resistor color coding, resistor color code calculator, or resistor color code chart to know more about how to calculate a five band resistor values. If you open up an analog multimeter you will understand what i mean. Most of the resistor circuit insidethe multimeter are using five color band. Why? Because the reading that you get whenever you measure current,voltage or ohm, the panel will show the nearest value. For instance, if you measure a 9v batterythe needle will point to may be 8.9v,9v,or 9.1 volt. If that particular multimeter was designedusing four color band resistor the result that it gets may be 8.5v,9.5v or even 10 volt. In otherwords the use of five color band resistor is to make a circuit more precise and output the desireresult as what the engineers want it to be. There's a interesting five color band resistor which is unique.In fact i have already seen quite a number of them. I will reveal the calculation about thisunique five color band resistor. The colors are orange, orange, red, gold, white.Actually it is a four color band resistor. Just ignore the white color and proceed to calculateusing the four color band formula. As to why the resistor manufacturers add this 'extra' whiteband i really do not know. However, from forum someone said that it is for the military purposes. If you know the answer i would like you to email me so that i can share with other fellow electronic repairer thru this info repairing newsletter. Jestine Yong is a electronic repairer and a writer. For more information on electronic repair please visit his website athttp://www.noahtec.com/electronic-repair-articles.htm
MORE RESOURCES: Unable to open RSS Feed $XMLfilename with error HTTP ERROR: 404, exiting |
|
|
|
RELATED ARTICLES
Moving to a New PC Getting a new PC is exciting and a pain. It's exciting because you get a faster processor, more storage and all the latest stuff even though it's outdated as soon as it hits your desk. Toner Cartridges - How They Work In the past computers and their accompanying printers were huge. Toner reservoirs and toner cartridges were used instead of ink cartridges like the ones in use today. Refurbished Laptop Batteries There are three refurbished laptop battery types, each named for its component materials:Nickel Cadmium (NiCad) batteries are hardly ever seen anymore. They have dismally low capacities (2000-3000 mAH) and contain heavy metals that harm the environment. TiVo: An Introduction for the Few Who Dont Know Yet TiVo will change your life.. Testing Flyback Transformer - How to Test and When to Replace It Nowadays, more and more monitor comes in with flyback transformers problems. Testing flyback transformers arenot difficult if you carefully follow the instruction. Printer Ink Cartridges - The History You are working at your computer and trying to print out important documents and all at once you find you are out of ink. Years ago that would have presented a big problem. How to Save Money With Cheap Computers We all know that computers change more then any other type of technology. There constant changing can also leave are wallets completely empty. A Guide to Refurbished Laptops Computing freedom, independence, and mobility don't have to come with a hefty price tag.Manufacturers refurbish laptop computers that have been returned. Buying a Plasma or LCD TV FAQs This article focuses on frequently asked questions by buyers of plasma and LCD televisions.Q: Does the "plasma" in plasma televisions need to be recharged or replaced over time?A: No. An Introduction to Tape Backup If you run a small business, chances are you're saving important files to a server. But what happens when disaster strikes? How are you ensuring that your files won't be lost? Many people fail to realize that the loss of files could cripple their business. Wireless Notebooks: What You Need To Know About Going Wireless! It's not exactly breaking news that our world is becoming increasingly wireless. Many of our daily activities that once needed a wired connection can now be done wirelessly!The cell phone craze was probably the first revolution that seemingly happened overnight. Expert Guide to DVD Camcorders Thinking about a mini DVD camcorder? You're not alone, it's a rapidly growing sector of the camcorder market, with Hitachi, Sony and Panasonic all making more than one mini dvd camcorder.These camcorders differ from regular digital video cameras in one important way - they record video onto mini DVD discs, rather than DV tape. Cisco CCNA Certification: An Illustrated Guide To Ethernet CSMA/CD When you're studying for your CCNA exams, you're going to study the theory of technologies we basically take for granted in networking. CSMA/CD is one of those technologies. Used Laptop Computer: Your Quick Purchase Inspection Guide - Part 3 Used laptop computers are everywhere these days. How can you sift through the mass of available used laptop computers to narrow your search down to the right laptop for you? This is the third part of a series of articles designed to give you a few suggestions for your next purchase. Bluetooth Basics - Bluetooth Technology Tutorial Bluetooth BasicsBluetooth technology is nothing new, but in many respects it still seems to be more of a buzz word rather than a well understood, commonly accepted technology. You see advertisements for Bluetooth enabled cell phones, PDAs, and laptops, and a search of the Geeks. Do You Have Dead Pixels? Take a good look at your notebook computer screen. Do you find some tiny dark spots? You could have dead pixels. Your Business versus Mother Nature Business Consultants earn hundreds of thousands of dollars every year showing businesses how to improve their productivity. All business consultants in the Information Technology area agree that the biggest threat to business survival is data loss. Computer Network Installation Computer network installation has become an essential prerequisite for any efficient modern-day business as it allows employees to truly work as a team by sharing information, accessing the same database and staying in touch constantly. For a computer network to give the best results, a lot of detailed planning and foresight is required before installation. Power and Your PC The power coming into a computer is the most critical component, and it may be one of the most overlooked. It is just taken for granted that it will always be there and working properly. Tips To Select Proper Hard drive Day by day computers are getting advanced. Capacity and performance are increasing with every passing year.
|
| home | site map | Contact Us |