工业电网上的高压电由于功率大,使用时十分危险.在教学中,我们采用一种简易的方法获得可供学生实验用的小功率模拟“高电压”.找一只电子管收音机用的6P1输出变压器,用金属片作一个锯齿转轮(用一个钟齿轮最好)并安装在金属支架上,锯齿一边与一定弹性金属片接触,做成一个间断通电装置,然后将这间断通电装置与一节干电 High-voltage electricity on industrial power grids is very dangerous because of its high power. In teaching, we use a simple method to obtain small-power simulation “high voltage” for student experiments. Find a 6P1 for a tube radio. The output transformer uses a metal blade as a saw-toothed wheel (preferably a clock gear) and is mounted on a metal bracket. The serrated side is in contact with a certain elastic metal plate to form an intermittent energization device, and then the intermittent energization device is Day dry electricity