图1 方波电路                                                        图2 振荡器实践电路

                           图3 GIC PROBE WITH PULSE 逻辑脉冲探头

          图4 TRONOME电子节拍器电路              图5 0-5分定时器电路

     图6 铃电路图                            图7  SCHMITT TRIGGER施密特触发器电路

图8 倾斜开关（水银开关）传感器电路           图9TIMER TESTER定时器测试电路

                      图10TWO TONE EXPERIMENT双音实验电路

                              图11动机调速器电路

                         图12电源报警电路                                                 图13   LED调光器电路

图14敏电阻光控报警电路                            图15光敏电阻光控开关电路  

          图16 红外线发射电路                                                  图17   简单闪光电路

             图18 触摸开关电路                                        图19氖灯驱动电路