有些人因怕电压不稳 ,就用调压器给电视机供电 ,其实这样做对电视机有害无益。因为电视机设计的适用电压范围很宽 ,一般均能适应电压的变化 ,在170 V至 2 6 0 V范围内都能正常收看 ,所以没有必要使用调压器或稳压电源。使用调压器 ,一方面增加了耗电量 ,另一方面又容易损坏电视 Some people are afraid of voltage instability, the voltage regulator to the TV power supply, in fact, do so harmful to the TV. Because TV sets are designed for a wide range of voltages, they are generally adapted to voltage variations and can be watched normally from 170 V to 260 V, so there is no need to use a voltage regulator or a regulated power supply. The use of voltage regulators, on the one hand increased power consumption, on the other hand it is easy to damage the TV