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Microwave anti-theft alarm
Source: InternetPublisher:蓝猫淘气 Updated: 2016/12/21
Relevant key device information applied in this article:
KD-5608
TDA2003
3DG142C
3DG8
3CG21
78L12
After the circuit is powered on, when someone walks around within 8m, the circuit will make a loud barking sound, and at the same time the small light bulb will flash, starting It has a certain anti-theft alarm effect. TDA2003 is a mono audio power amplifier integrated circuit.
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