在调幅收音机修理过程中,业余爱好者不具备应有的条件下,笔者试装了一台高低频信号发生器,对收音机的检修发挥了应有的作用。不妨爱好者一试。一、电路原理利用CMOS电子音乐集成电路所具有的功能而设计电路原理图如图1所示。CMOS集成电路经过触发端C给予正触发信号,就能输出一个音频信号,经C2、D输出,用以检修调幅收音机的低频部分线路,也就是 AM radio repair process, amateurs do not have the conditions, the author tried a high-frequency signal generator installed on the radio overhaul played its due role. May wish fans a try. First, the circuit principle The use of CMOS electronic music integrated circuits with the design of circuit schematics shown in Figure 1. CMOS IC trigger signal is given by the trigger terminal C, you can output an audio signal, the C2, D output to repair the low-frequency part of the AM radio line, that is