Quote:
Originally Posted by Electronic M
The screen is the back piece of glass. You look through one sheet of glass, through the vacuum then at the screen on the inside of the back wall of the CRT the screen curves gently out toward the viewer at the top. From the electron gun's perspective it it shooting at a very short wide screen....No crazy deflection angles here.
|
That is indeed true for the second generation design, the curved phosphor screen allowed the electron beam to land with only modest vertical deflection required. Magnetic deflection was employed for both axes.
The first generation design employed a flat phosphor screen at 90 degrees to the electron gun. A combination of magnetic and electrostatic deflection was used to achieve proper landing of the beam.
http://www.videokarma.org/attachment...5&d=1256418738
jr