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.
Sometimes the cable tv signale drops due to power failure or line fault between the cable operator and our home. Can we make a device which can operate on 1/2 AA batteries and indicate the signal using one green and one red leds.
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