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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 inside the 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 battery the needle will point to may be 8.9v,9v,or 9.1 volt. If that particular multimeter was designed using four color band resistor the result that it gets may be 8.5v,9.5v or even 10 volt. In other words the use of five color band resistor is to make a circuit more precise and output the desire result 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 this unique 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 calculate using the four color band formula. As to why the resistor manufacturers add this 'extra' white band 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 at http://www.noahtec.com/electronic-repair-articles.htm

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Yahoo! News Search Results for hardware
Yahoo! News Search Results for hardware

• Russia army to upgrade 30 percent of arms and hardware in 3-5 years (Itar-Tass)
MOSCOW, November 19 (Itar-Tass) --The Russian army will upgrade one-third of arms and hardware in the next three to five years, chief of the Russian Army General Staff, General of the Army Nikolai Makarov said.
• PC game hardware worth $34 billion by 2012 (CNET)
A report from Jon Peddie Research says the market for PC game hardware is larger than the market for game software. And PC gaming is bigger than console gaming.
• Take the Tom's Hardware Survey! (Tom's Hardware)
Take Tom?s Hardware Readers Survey and be automatically entered for a chance to Win one out of five $50 Amazon.com Gift Certificates! Having a frustrating time looking for information that helps you make your tech and hardware buying decisions?
• Tiny hardware firewall opened to Linux hackers (Linux Devices)
? Nov. 11, 2008 ? [Updated Nov. 13] -- Linux hobbyists and hackers have gained access to two of the most highly miniaturized hardware platforms shipped to date. Yoggie has started shipping ope-source based, user-modifiable versions of its inline and USB key-shaped security appliances. ...
• Holiday Gift Guide: High-end hardware (ZDNet)
Lists ... if there's one thing that people seem to what at this time of year it's lists. Over the next few weeks I've planned on posting several kit lists for the Holiday season covering a wide variety of different kit. To kick off the lists, I thought I'd start by getting the big numbers out of the way first and look at high-end hardware! The top-end, sky's the limit stuff that, if nothing ...

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