多功能电子实验套件的使用 以前介绍的基本单元可用来组成不同的电子装置。例如图2、图3所示的电路可以组合成一台直放式收音机(见图8、图9);图3、图4所示的电路组合起来就是一台助听器(见图10、图11);图4、图5、图6所示电路组合起来是一台调频无线话筒(见图12、图13);等等。以上组合比较容易操作,初学者 The use of multi-function electronic experiment kit The basic unit previously described can be used to form different electronic devices. For example, the circuits shown in FIG. 2 and FIG. 3 can be combined into a direct radio (see FIGS. 8 and 9). The circuits shown in FIGS. 3 and 4 are combined as a hearing aid (see FIGS. 10 and 11) ; Figure 4, Figure 5, Figure 6 shows a circuit combination of a FM wireless microphone (see Figure 12, Figure 13); and so on. The above combination is relatively easy to operate, beginners