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One of the water full alarm circuits
Source: InternetPublisher:ghaytweyhtoo Keywords: Alarm circuit transistor potentiometer Updated: 2021/12/30
In order to prevent water tanks, pools, etc. from overflowing, a water-full alarm can be used.
The circuit is shown in Figure 13r115. It uses triode control and alarm circuit .
Adjust the potentiometer RP (or capacitor C) to change the tone.
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