随着我国电视工业的飞跃发展,对电视显象管的质量要求越来越高,其中之一就是迫切要对显象管管内的真空度进行测量。而在1972年以前,由于没有专门用于测试显象管真空度的仪器,我国生产的电视显象管一般是不进行真空度测量的,所以那时出厂的电视显象管的质量、特别是寿命指标,没有保证。因此,各显象管生产厂迫切要求提供测试显象管 With the rapid development of China's television industry, the quality of the TV picture tube is getting higher and higher. One of them is that it is urgent to measure the degree of vacuum in the picture tube. Before 1972, there was no instrument specially designed for testing the vacuum degree of the kinescope. The kinescopes produced in our country generally do not measure the degree of vacuum, so the quality of the kinescopes manufactured at that time, in particular, Life expectancy, there is no guarantee. Therefore, the kinescope manufacturers are urgently required to provide test kinescopes