The device can be adjusted continuously in an audio inter break oscillation range, and a signal is sent out by a loudspeaker through being magnified by a semiconductor triode.
这种装置在音频的间息振荡范围内连续可调，信号经半导体三极管放大后用喇叭播放出来。
The device can be adjusted continuously in an audio inter break oscillation range, and a signal is sent out by a loudspeaker through being magnified by a semiconductor triode.
这种装置在音频的间息振荡范围内连续可调，信号经半导体三极管放大后用喇叭播放出来。
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