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首页> 外文期刊>Proceedings of the IEE - Part B: Electronic and Communication Engineering >A precision transistorized television waveform and pattern generator
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A precision transistorized television waveform and pattern generator

机译：精密晶体管电视波形和图案发生器

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摘要

The design of a transistorized television waveform pattern generator is described, which produces the waveforms necessary for controlling picture generating equipment, plus a composite video grid pattern signal. The generator was designed to conform with the B.B.C. waveform specifications for television waveform generators. Binary counting circuits with feedback loops are used to count down from the master oscillator frequency to line and frame frequencies. The duration and relative timings of the line synchronizing pulses and line blanking pulses are determined by a delay line. The generator can be locked to the mains frequency or allowed to run free. The circuits have been designed to accept transistor parameter variations within the manufactured tolerances without necessitating circuit component changes, and to have good temperature stability. The generator uses 86 p-n-p germanium junction alloy transistors and 73 germanium point-contact diodes. But for one symmetrical transistor, all the transistors are standard entertainment types.
机译：描述了晶体管化电视波形图发生器的设计，该发生器产生控制图像产生设备所需的波形以及复合视频网格图样信号。发电机的设计符合B.B.C.电视波形发生器的波形规范。具有反馈环路的二进制计数电路用于从主振荡器频率向下计数到行频和帧频。线同步脉冲和线消隐脉冲的持续时间和相对定时由延迟线确定。发电机可以锁定到市电频率或自由运行。这些电路已被设计为在制造公差范围内接受晶体管参数的变化，而无需改变电路组件，并具有良好的温度稳定性。该发生器使用86个p-n-p锗结合金晶体管和73个锗点接触二极管。但是对于一个对称晶体管，所有晶体管都是标准娱乐类型。

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