晶体三极管种类繁多,管脚排列也各有规定,加之目前一些国外电子产品如收录机、电视机等进入国内市场,更增添了晶体管种类的复杂性。如果想了解这些晶体管的基本特性(包括管型、β、I_(ceo)等)以及管脚排列规则,最好的办法是查阅有关资料。如无资料时,不得已也可用三用表进行粗略的判断,不过此 A wide range of transistor, pin arrangement also have their own rules, coupled with the current number of foreign electronic products such as tape recorders, TV sets, etc. into the domestic market, but also adds complexity of the transistor type. If you want to know the basic characteristics of these transistors (including tube type, β, ceo, etc.) and pin arrangement rules, the best way is to access the information. If there is no information, last resort can also be used to make rough judgments, but this