CRT(Cathode Ray Tube)

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Important:
  • During discharge the positive is a cathode, the negative is an anode.

  • During charge the positive is a anode, the negative is a cathode.


 

What is CRT?

=> CRT is a device which converts electrical signal into visual signal.

• Now before anything else it's important to understand the working and it's diagram properly.


• let's see work of each component in this diagram

1) Cathode: Cathode emits electron when it gets heat up by heater.

=> Cathode can be(Cobalt,Nickel,and manganese)

=> Anode made of(Zinc and lithium)

2) Grid Focuses and pass Electron beam at high speed.

3) Pre Accelerating Anode: It provides path to electrons

4) Vertical deflection plate: It deflects electrons beam up or down direction on screen as y-axis does

5) Horizontal deflection plate: It deflects electrons beam Right or left as X-axis does.

6) Aquadag coating: If electrons comes out of their path then it repels and helps electrons to come again in focusing path

7) Screen is coated with phosphore.

 • please refer above point simultaneously as diagram.


• when electrons are passing



=> Gray color tube at the back is CRT tube.


=> This is Cathode of RGB color.

• If you want to see Animated working of CRT Link is below:

https://youtu.be/Gnl1vuwjHto


*You can leave a comment if you have doubt in it.



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