很多拖拉机机务人员和汽车爱好者,想在自已驾驶的拖拉机和汽车上,装用晶体管收音机或磁带录音机并由机上电网供电。但事先最好要知道晶体管收音机的牌号及其供电电压,具体该接在哪个元件上或哪个接点上。通常必须正确选择机上电网+12伏的接点。可以接到蓄电池组上或发电机的Я、B或《+》端, Many tractor locomotives and car enthusiasts want to install transistor radios or tape recorders on self-driving tractors and cars and power it from the on-board power grid. But in advance it is best to know the transistor radio license plate and its supply voltage, which should be connected to which element or on which contacts. The correct connection of the on-grid grid to +12 volts must normally be made. Can be connected to the battery or generator Я, B or “+” terminal,