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国产直角平面彩色显像管已大量生产,这种电视机的产量也不断增加,本文将对这类电视机的部分电路进行一些分析。一、直角平面彩色显像管国产彩色显像管有高透管及低透管两种,前者透光率约85.5％,后者约53.5％。高透管的优点是亮度高,在同样亮度时功耗比低透管低不少,但对比度较小,而低透管的优点是对比度容易做高,但亮度低,两种显像管各有优缺点。国产54cm直角平面彩色显像管的极限高压为
Domestic right-angle planar color picture tubes have been mass-produced, and the output of such televisions has also been on the increase. In this paper, some analyzes will be made on some circuits of such televisions. First, the right-angle plane color CRT Domestic color CRT with high and low permeability two, the former light transmittance of about 85.5%, the latter about 53.5%. High translucent tube has the advantage of high brightness, low power consumption at the same brightness, low translucent than a lot, but the contrast is small, and the advantages of low transmissive contrast is easy to do high, but the brightness is low, the two tubes have excellent Disadvantages. Domestic 54cm right angle plane color picture tube of the ultimate high pressure