多用电子测试仪是根据晶体三极管工作时具有的开关、放大特性原理制作的。介绍该多用电子测试仪的制作,主要是使初学者在通过自己动手做的基础上进一步加深熟悉晶体三极管的工作特性,以提高对电子制作的兴趣和动手能力。 Multi-purpose electronic tester is based on the work of the transistor transistor switch, amplification characteristics of the principle of production. The introduction of the multi-purpose electronic tester production, mainly for beginners to do by yourself to further deepen familiar with the working characteristics of the transistor to improve the electronic production of interest and ability.