电视摄象管是摄象机中的关键器件,各电视台使用的摄象管主要是氧化铅摄象管,目前这种器件大部分要依靠国外进口,价格异常昂贵。所以正确合理地使用这些摄象管,一方面可以改善电视节目制作的质量;一方面可以延长它们的使用寿命,从而降低电视节目制作的成本。要做到正确使用,就必须对摄象管的特 TV cameras are the key components in video cameras. The video cameras used by various TV stations are mainly lead oxide video tubes. At present, most of these devices rely on foreign imports, and the prices are unusually expensive. Therefore, the correct and reasonable use of these video tubes can, on the one hand, improve the quality of the production of television programs; on the other hand, they can prolong their service life and thus reduce the cost of television program production. To be properly used, it must be special on the video tube