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|This circuit is a simple wire loop alarm that can be used in doorways, hallways, or any other place the tripwire will be broken by intruders. The circuit has a built in siren, but it can be replaced by a relay to drive an external siren, commercial alarm, etc.|
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|hi i need your help, i picked the wire loop alarm as a project for school and i was just wondering if you can help my by answering some questions that kept me awake for some time and i need technical answers if its not too much trouble. why does the siren stay on when you reconnect the loop and second what are the jobs of the 7th and 14th pin and why are they connected in that way i would really appreciate you answer on this .|
|hi, just wanna ask how long wire this circuit will work? if transistor i change, with kind of what transistor?..thx|
|can we replace the siren to a buzzer type and what if we use a solid wire could it be work in this kind of circuit.|
|can we use IC 4002 instead???...plz help!!|
|Will this work with a 200m or more length of wire loop??|
|Hey. Thanks for this circuit. I found other loop alarms hard to get working. Can you please send me more information about the alarm. Many Thanks ! Dan|
|which loop should we use is it simple wire loop or which thing is used|
|what is the use of the circuit & explain how it works|
|can u give me the detail?a.s.a.p i think i want to add other circuit.. i want to add autolock circuit.. oh i want to send the signal to my room or other..|
|hi there!just wanna ask if you do have the data sheet of each part/material of your wire loop alarm?if so, can you please send it to my e-mail coz i really need those data for our design...hope you can help me...thank you and God bless...|
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