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视频圆盘(Video-disc)是1978年底才作为商品出现在国外市场上的新颖电视录象重现设备。外形和一般电唱机所用的密纹唱片极为相似,所以也叫电视唱片。从其工作方式看,可分为两类。一类是RCA研制的电视唱片系统。这种系统的工作原理,基本上没有脱出传统电唱机的窠臼,也有“唱头”,用的是电容式钻石唱针。唱片直径为12英寸,片上刻有V形的细密螺纹,每分钟转450次,每面播放时间长达一小时,正反两面可以容纳二小时的电视节目。另一类是北美菲利浦公司(The North American Philips Company)的
Video-disc (Video-disc) is a novel TV video reproduction equipment that appeared as a commodity in foreign markets at the end of 1978. Shape and general record player used MDF very similar, it is also called a television recording. From its working methods, can be divided into two categories. One is the RCA developed a record system. The working principle of this system, basically did not break out of the stereotypes of the traditional record player, but also “singing”, using a condenser diamond stylus. The record is 12 inches in diameter and has V-shaped, thin threads threaded 450 turns per minute, playing for up to an hour on each side and up to two hours on both sides. The other is North American Philips Company