| 摘要 |
<p>A colour picture display device having a circuit for generating a screen grid voltage derived from the line deflection generator, whilst the high tension generator is separated. Via a resistance clement the screen grid is coupled to a source which generates a parabolic voltage of the field frequency with a curvature opposite to that obtained by rectifying the line flyback pulses owing to the east-west modulation, the resistance element, for example a voltage-dependent resistor, having in operation, a dynamic resistance which is many times lower than the static resistance thereof.</p> |
