目 录
第一章 无电源收音机·················1
§1-1 概述·················1
1.远距离传递声音的方法·····················3
2.无线电波的划分································5
3.地波、天波和空间波·················6
4.无线电波的接收和检测·························8
5.晶体管的放大作用································9
6.二极管收音机的电路分析··························13
7.二极管收音机的天线和地线························18
8.二极管收音机的线圈·························21
§1-2 无电源收音机实际制作电路·························23
1.最简单的收音机··························24
2.用磁棒调台的简单收音机·························25
3.用分线器调台的简单收音机·····················26
4.单回路半波检波收音机···。·················28
5.双回路半波检波收音机·····················30
6.三回路耦合半波捡波收音机··························36
7.具有滤波器的半波检波收音机······················37
8.全波检波二极管收音机·························39
9.倍压检波二极管收音机····························40
10.旅行式二极管收音机························42
11.收听短波的二极管收音机······················43
12.高效率晶体三极管全波检波收音机·············47
§1-3 晶体三极管无电源收音机················49
1.两种简单的三极管无电源收音机····················50