We found this anti-theft circuit in a 90's English publication. The circuit uses common components and a relay can be used to activate an external load as well as a buzzer. The circuit sounds for 20 seconds before it turns off.
We found this anti-theft circuit in a 90's English publication. The circuit uses common components and a relay can be used to activate an external load as well as a buzzer. The circuit sounds for 20 seconds before it turns off.
