How to Read CRT Tube Part Numbers
All picture tubes, whether monochrome or color type are identified by a specific code consisting of numbers and letters. The codes are different from each other because different tubes have different characteristics. For example, a certain monitor colour picture tube may have the designation, M34AFA63X03 that
can breakdown into 6 parts: M/34/AFA/63/X/03 Part 1: Application Computer monitor tubes start with the letter "M" while for a TV picture tube, it start with "A". Part 2: Screen diagonal measure in centimeters (cm) The "34" means the diagonal viewing measure is a minimum of 34cm which refers to 14" tube, 36cm
is 15", 41cm is 17" and so on. Part 3: Family code The three letters "AFA" designate a family of tubes that have similar physical and electrical
characteristic. These letters are assigned alphabetically beginning with "AAA", followed by "AAB",
"AAC" etc. Part 4: Family number The number 63 shows a specific tube within the family code. A different number is assigned to
tubes within the same family that have different neck diameters, for example a single digit would
be a monochrome tube, but this two-digit number shows it is colour. Part 5: Phosphor Type The fifth symbol gives the phosphor designation. The letter X here corresponds to P22 for colour
picture tubes. Colour monitor tubes can have any other single letter (excluding I, O, or W) to
designate other phosphor type for various applications. For monochrome pictures, the phosphor
symbol is WW, corresponding to P4. Monochrome monitor tubes also can use WW or some
other two-letter combination (excluding I and O). Part 6: Integral neck components The sixth symbol is assigned only for tubes having integral neck components, such as the
deflection yoke. The specs are only apply to a particular tube manufacturer. The primary
consideration here is winding inductance. The yoke coils have different sensitivity i.e.
deflection per Amp in both horizontal and vertical. Jestine Yong is a electronic repairer and writer. For more information about electronic repair please visit his website at http://www.noahtec.com
Related News
|
 |
|
|
RELATED ARTICLES
5 Tips For Buying The Right Laptop Computer
It's easy to be intimidated by all the laptop models on the market today. There are literally dozens and dozens in every price range.
Which Notebook Computer Has Your Name On It?
Notebook Computers Are Sexy!
LCD Vs. CRT
When buying a new computer, or upgrading your monitor, you may be in somewhat of a conundrum deciding between an LCD or CRT monitor. That's understandable because for most people the difference is just size. But there is much more behind each option than just some space saving. In this article we'll outline the pros and con's for each choice and then tell you what will best suit your needs.
Used Laptop Computer: Your Quick Purchase Inspection Guide ? Part 4
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 fourth and final article strives to give you a few suggestions for your next laptop purchase.
Investing On A 1D Bar Code Reader
Whereas 2D bar codes offer more security and safety for their subjects, 1D bar codes, as read by 1D bar code readers, are more practical for wide scale operations. The reason? Bar codes with single layers are more affordable to produce than the double layered inscriptions of 2D bar codes. Hence, there is a large demand for 1D bad codes and 1D bar code readers in today's busy times.
Laptop and Notebook Theft Prevention
Laptops or Notebook computers are an expensive personal and business asset that are highly sought after by both small time thieves and large complicated theft rings. Keeping your laptop and notebook computers safely in your possession should always be in the back of your mind. Not only are these extremely expensive, they can contain very private personal information or business secrets that can hurt you if the information was ever brought public, or worse yet, sold to a competitor!
A Review of Brother Laser Toners
Brother is right up there with HP and Samsung as one of the most sought-after brands of laser toner. The Japan-based Brother Industries was first famous for its sewing machines. It went on to produce all kinds of office equipment, such as machine tools, fax machines, label makers, printers, and other office equipment. They began making dot-matrix printers in the 1970s. In the 1980s, after HP blew up the market, Brother began releasing their own laser printers to consumers, and to other companies under the name of OEMed. Brother has a great reputation for printers and printing accessories.
Buying / Selecting Computer Components
This is the step takes the most time and consideration. Which parts do I buy? Which are best?
Where does technology come from?
Ever wonder where all the cool gadgets come from? Ever wonder who gets to try this stuff out first? Usually the war machine scientists get it first, try it out and find an application by using it for destruction; an obvious outlet for the human species and our desire to blow things up. It then moves into the private sector for important projects like, Microwave Ovens, Nuclear Energy, aviation space travel, telecommunications, Internet (which of course Al gore created first?), even Hummers, the ultimate SUV was created to cruise troops around in, Helicopters, hydrofoils, you name it man it came from military first.
DVD Recorders: Getting Started
IMO, these sd work 'like a VCR' as far as recording and playback. There are models w/ harddrives, VHS players, etc. built in, but to me that's overboard.
Laptop Notebook ? Inexpensive Business Laptops
Laptop Notebook ? Your Portable Office
Basics of RAID
A couple of the recent Tech Tips from www.geeks.com have made mention of RAID, but the level of detail required in those tips didn't shed much light on what RAID actually is. The number of e-mail responses and comments in the Readers Digress section was convincing enough that an introduction to the basics of RAID would be an appropriate Tech Tip, so here it is.
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. A top of the line processor and ultra powerful video card do nothing if a system does not receive the ample, stable power it demands. Having quality components providing and regulating the power supplied to a computer is critical, and this brief overview looks at a few areas worth consideration.
Got The Message that You Need New Ink Cartridges?
We all know what it is like when that message flashes on the computer screen as you are printing off an important document. Your ink cartridge is low, replace soon! But, do you know what type of ink cartridges your printer needs? Do you know where to find ink cartridges to replace those? Is this going to be a long, difficult search that will cost you dearly? You don't have to dread that message at all. In fact, finding the information you need for the replacement of ink cartridges is simple.
Selecting an Ink Jet printer?With Low Operating Cost
Printer technology has made tremendous advances in the past five years. Speeds are up and print quality is great. Meanwhile, printer costs have declined.
Give Your PC a Monitor Makeover
Whether you are crunching figures at a front office job or crouched over a blood and gore video game in some deep recess of your room, there is the right kind of screen available to suit your needs.
How to Change, Upgade or Remove an IDE Hard Drive
Hard drives - Hard drives are a little more complicated. First off, you have to know what you want to do with the hard drive. By this, I mean either you want it set to either SLAVE or MASTER. If you want to boot from the hard drive (load windows or whatever other OS off it) then you want it to be your master. If you already have a master, and you want to use this as extra space, set this hdd to slave. This setting change requires a jumper on the back of the hard drive to be moved. It may sound hard, but it's easy. These jumper configurations can be found on the back of the hdd; most have a small label which states which way is which. After setting the jumper, take the IDE cable that runs to your primary hard drive. This is the long, usually grey cable that runs from a slot on your motherboard to your primary hard drive. If you are putting your new hdd in as a slave, this cable should have a second connector on it not being used. Connect this to the new slave hard drive, but don't disconnect the cable from your other HDD.
HIPPA Goes Mobile and Wireless for Hospitals and First Responders
It appears we need to further streamline health care and HIPPA now in effect is quite a nightmare trying to comply with and implement without making a mistake and possibly being sued as the trial lawyers testing the law. The Malpractice insurance rates may go up again. On one hand you have the 'know your customer" laws and on the other you have "privacy rules."
Printer Cartridge Economics -- Four Ways To Make Your Ink Last Longer
Printer cartridge overheads can be a major expense for any busy office -- and even if you're working at home, it's important to factor in the amount you spend on your printer ink when assessing the cost of running a home-based business. And what you spent on that bargain-priced printer may turn out to be only a fraction of what you pay annually in printer supplies.
USB Key Drives - Useful Tool
There are many different names for these drives, just so we are all on the same wavelength about what I'm talking about, here are a few of the other names:
|
