Deflection yoke
Cathode ray tube, showing the yoke (copper coils and white plastic former) around the rear neck of the tube
A deflection yoke, is a kind of magnetic lens, used in cathode ray tubes that are used to process the electron beam by deflecting it vertically and horizontally.
In a CRT television, the electron beam very fast moved (scanned) on the screen in certain pattern vertical and horizontal direction in certain speed (frequency), so that, the video image could be produced throughout the screen, according to the signal of dissected image .
View inside the yoke, with the tube removed
Structure
An yoke coil of a black and white TV from few viewpoints |
---|
| From front (screen) side of TV. |
| from rear or back (not-visited) side of the TV. |
|
See also
References
http://www.dictionary.com/browse/deflection-yoke
http://www.changhongglobal.com/egdch/files/ETE-2_Service_Manual.pdf
http://www.oldtellys.co.uk/otcolour.html
http://diagramasde.com/diagramas/otros2/Panasonic%20CT%20-%2025G6E%20Chasis%20AP361.pdf
http://www.google.co.in/patents/US3310763
https://www.google.com/patents/US2852712
https://www.google.com.ar/patents/USRE31399
http://www.google.com/patents/EP0845798A1?cl=en
http://www.google.co.ve/patents/US5220241
https://www.google.com.ar/patents/US4376273
https://www.google.com.tr/patents/US6836200