| 摘要 |
<p>KINESCOPE BIAS SENSING CIRCUIT A video signal processing and display system includes an image displaying kinescope, a kinescope driver amplifier, and a system for automatically controlling the kinescope bias in response to a sensed signal representative of the kinescope black current level. The sensed signal is developed across a relatively small value sensing resistor coupled in series with a load resistor between a source of operating potential and the video output terminal of the driver amplifier, in the order named.</p> |
