在修理电视机、录音机、收音机时,常会遇到没有型号标记的晶体三极管,使业余维修人员无法辨认使用,本文介绍一种用三用表进行测量辨认的方法。 1.晶体三极管好坏的测量辨认晶体三极管的三个电极间都是正、反相接的PN结。用三用表测量各两电极间的正、反向电阻,正测电阻小,反测电阻大。这样返复测量六次,都是阻值 In the repair of TV sets, tape recorders, radios, often encounter no model number of transistor transistor, so that amateur maintenance personnel can not identify the use of this article describes a method of measuring the use of three tables to identify. 1 crystal transistor is good or bad measurement to identify the transistor between the three electrodes are positive and negative connected PN junction. Measured with a three-use table between the two electrodes of the positive and negative resistance, positive resistance is measured, the resistance measured resistance. This return measurement six times, are resistance