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哈尔滨刘世全问:自装12D1型电视机一台,采用313型显象管,行幅和帧幅都下能达到满幅,尤其是行幅左右各羞3厘米光景。请问如何解决这个问题? 答:偏转角为110°、管径为20毫米的12英寸显象管目前在国内尚无生产。该类显象管所需要的偏转功率比90°偏转角同类型的显象管要大。因此,将12D1电视机扫描部分直接套用上去,就会产生行幅拉不足的现象。苏式型显象管的主要技术数据如下:
Harbin Liu Shiju asked: Since the installation of a 12D1-type TV, the use of 313-type picture tube, frame width and frame are able to reach full capacity, especially the line about shame 3 cm light scene. How to solve this problem? A: The deflection angle of 110 °, diameter of 20 mm 12-inch CRT currently has no production in the country. The type of kinescope requires deflection power than the 90 ° deflection angle of the same type of kinescope. Therefore, the 12D1 TV scan part of the direct application of up, it will produce a lack of line stretching phenomenon. The main technical data of the tube is as follows: