显象管是大型电真空器件,制造工艺复杂,价格昂贵,寿命在10000h以上。如果使用不当,不仅不能充分发挥其功能,得不到满意的图象,还会降低寿命。如果能做到下列几点,既可得到满意的图象,还能使显象管延年益寿。 1.正确理解显象管的极限使用电压 以35cm(14in)黑白显象管为例,该管的极限使用电压值如下表所示: The picture tube is a large electric vacuum device, the manufacturing process is complex, expensive, life expectancy above 10000h. If used improperly, not only can not give full play to its function, can not get satisfactory images, but also reduce the life expectancy. If you can do the following, you can get a satisfactory image, but also make kinescopes longevity. 1. Correctly understand the picture of the use of the limit tube voltage 35cm (14in) black and white picture tube, for example, the tube limit voltage values ​​shown in the following table: