Electronic fish lure
Source: InternetPublisher:国民男神经 Keywords: pulse analog signal Updated: 2020/01/24
Circuit working principle: The circuit consists of four major parts. The fish sound analog signal generator
is shown in Figure a and consists of IC1, IC2 and V1. What is generated at point B is an
intermittent steamed bun-shaped pulse train. Since the charge and discharge of capacitors C3 and C4 control the operating
voltage of IC2, the sound effect of the IC2 output pulse train is similar to the sound of water bubbles.
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