CATHODE RAY TUBES (CRT)
Cathode Ray Tube (CRT) is one of two important parts of color televisions

The Diagram of Cathode Ray Tube

Which CRT We Used In Our Color Television?
As 14" CRT(curved shape,no others shape in the world),we use the brand of "Panasonic"and "Irico",its production base is located in Beijing and the brand of "Irico" a joint;venture company with Toshiba, its production base is located in Xian city of China.29" and; 34" CRT(curved,super flat and flat),we only use the brand of "Thomson",an famous European company,its manufacture base is located in Foshan city of China.21" CRT(curved and flat shape),we use "Seg-Hitachi" or Fudi,a joint venture company with Hitachi,its manufacture base is located in ShenZhen and DongGuan city of China.25" we use Irico or Fortune brand CRT(curved and super flat).most of these manufacturers are located in the same province with us.so prompt delivery and less ship cost became possible.

All of those CRTs mentioned above satisfy with international standards, and customers should understand, for different region, there are different magnetic measures. So before you order a deal, you have to tell us your final destination .so we can adjust it to match its magnetic requirement.

If you want to know more about CRT, please look at the technology specifications below.

How Does CRT Work?

special-purpose electron tube in which electrons are accelerated by high-voltage anodes, formed into a beam by focusing electrodes, and projected toward a phosphorescent screen that forms one face of the tube.The beam of electrons leaves a bright spot wherever it strikes the phosphor screen. To form a display, or image, on the screen, the electron beam is deflected in the vertical and horizontal directions either by the electrostatic effect of electrodes within the tube or by magnetic fields produced by coils located around the neck of the tube. Some cathode-ray tubes can produce multiple beams of electrons and have phosphor screens that are capable of displaying more than one color

Quick Glance Of CRT Size and Shape
The specifications of 14", 21", 25" for reference. please pay attention those documents are written with PDF format, so you should use AdobeAcrobatReader to read them.

14" 25" 29"