电视唱片有许多种,通常可分为:1.机械式这种电视唱片刻录和拾取图象伴音信号的方式与一般唱片相仿。由于受机械刻纹精度的限制,使得信号密度较低、制作较麻烦、放象时间较短、图象质量也不太理想。但系统简单、价格便宜。2.有槽电容式(或CED式)它采用机械方式刻录,刻纹为螺旋状的V型沟槽,图象和伴音信号 There are many types of television recordings, which can be broadly divided into: 1. Mechanical This kind of television recordings record and pick up audio-visual signals in the same way as regular recordings. Due to the mechanical engraving accuracy, making the signal density is low, making more trouble, the release time is shorter, the image quality is not ideal. But the system is simple, cheap. 2. Slotted Capacitive (or CED) It uses a mechanical way of recording, engraved with a spiral V-shaped groove, the image and audio signals