笔者学校地处农村 ,教学器材短缺 ,象阴极射线管、变压器等器材均没有配备 ,在进行带电粒子在磁场中偏转教学时因缺少实验演示而显得枯燥乏味 ,缺少说服力 ,后笔者发现将家里闲置的黑白电视机稍作改动在教学中可以收到非常好的效果 ,现提出以供同行参考。电视机是利用磁偏转进 The author’s school is located in the countryside and there is a shortage of teaching equipment. Equipment such as cathode ray tubes and transformers are not equipped. When the charged particles are deflected in a magnetic field, they are boring due to the lack of experimental demonstrations. The author lacks convincing power. Idle black-and-white TV sets can make very good results in teaching. They are now proposed for reference by peers. TV is using magnetic deflection