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半导体收音机多数采用普通干电池。为了延长电池的使用寿命,每次使用的时间最好短一些,连续使用一般不要超过2至3小时。同时,音量要尽可能开小些,因为大多数半导体收音机音量开得太大时,不仅会引起放大器过载,使声音不好听,而且电池消耗也快。关断电源的时候,一定要注意听到开关响声,才算关死。如果收音机声音低落、难听,甚至发出不连续的“扑扑”声,多半是电池用完了。在更换新电池的时候,应当注意电池的极性。如果机器准备长时期不用,应当将电池取出,以免电池内部电液流出,损坏机件。半导体收音机中一般都有棒形或扁形的磁性天线,这种磁性天线在接收的
Most of the semiconductor radios use ordinary dry batteries. In order to prolong the service life of the battery, the time for each use is preferably shorter, and it is generally not more than 2 to 3 hours for continuous use. At the same time, the volume should be as small as possible, because when the volume of most semiconductor radios is too large, it will not only cause the amplifier to overload, making the sound unpleasant, but also the battery consumption. When you turn off the power, you must pay attention to hear the sound of the switch before it is considered dead. If the radio sounds low, ugly, or even emits a discontinuous sound, most of the time the battery runs out. When replacing a new battery, you should pay attention to the polarity of the battery. If the machine is not ready for a long period of time, the battery should be removed to prevent the battery from flowing out of the battery and damaging the device. In semiconductor radios, there are generally rod-shaped or flat magnetic antennas, which are received by the magnetic antenna.