Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Below is a site that shows a good variety of alarm circuits. Have a look around, might see something you like and there is a burglar alarm circuit
for some reason I cant put the URL. so goto google and do the search for Alarms and Indicator Circuit diagrams and click on the first site you see there.
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