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电子管的发明距今已有五十多年了.在这期间,电子技术获得了飞速的发展,而电子管亦被誉为电子学的心脏,电子工业的支柱.然而,1948年晶体管出现后,电子管的实力地位开始改变.这是由于半导体器件具有体积小、重量轻、寿命长、用电省等许多优点;特别是近年来集成电路的发展,使这些特点更为突出;随着工艺日趋成熟,价格也将进一步降低;于是出现了半导体器件能否全部取代电子管这样的问题.当然,
The invention of electronic tubes has been around for more than 50 years, during which time electronic technology gained rapid progress, while electronic tubes were also hailed as the heart of electronics and the backbone of the electronics industry. However, after the transistor appeared in 1948, The strength of the beginning began to change.This is due to the semiconductor devices with small size, light weight, long life, power saving and many other advantages; especially in recent years the development of integrated circuits, these features become more prominent; as technology matures, The price will be further reduced; so the emergence of semiconductor devices can replace all the problems such as tubes.Of course,