Simple buzzer circuit three
Source: InternetPublisher:toothache Keywords: transformer Updated: 2020/02/21
It does not use a transformer , makes a loud popping sound, and is also an electronic metronome.
The frequency of the bounce sound can be changed by adjusting RP. The loudness of the bounce sound depends on the capacity of capacitor C2. According to the component parameters shown in the figure
, the pulse repetition frequency is 0. 5 ~ 2Hz.
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