近年来,民用电子设备中的电视机、立体声、磁带录音机、收音机以至车用立体声等电路都已晶体管化,元件的装配布线也使用了印刷电路板,这就减少了大量生产所带来的性能波动;同时,对装配过程自动化也比较有利。但是,从印刷电路板的装配到检验、测试的自动化过程中,还会受到一定的限制,因此还需要时间作技术上的探讨。本文以晶体管收音机电路为例,主要叙 In recent years, television sets, stereos, tape recorders, radios and even car stereo circuits in consumer electronic devices have been transistorized, printed circuit boards have also been used for the assembly and routing of components, thereby reducing the performance associated with mass production Fluctuations; the same time, the assembly process automation is also more favorable. However, from the assembly of the printed circuit board to the testing and testing of the automation process, there will be some restrictions, it also takes time for technical discussions. This article transistor transistor circuit, for example, the main Syria