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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.

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  1. Key Ing

    [Stupid Question] Hard drive port detached with motherboard connectors, need help fixing it.

    Hello, First of all, I'm totally inexperienced, and just someone trying to salvage a device if it's doable. I was trying to disconnect the HDD cable out of its port, but the whole thing came off with the connectors still soldered to it. I got some advice telling me it's an easy fix but I'm...
  2. JamesC13

    Lab bench testing power supply breadboard?

    Hi so this is my first post to this site I do apologize if it has the wrong area I was given a basically what I think is a variable power supply, the terms for me getting this nice thing for free was the fact that it is old one and had been through a fire so it was not damaged however had smoke...
  3. B

    Repairing Blown Circuit - Overpowered with 10v 2.4amp instead of 5v 2amp

    Hello, I know near nothing about circuits and am happy to learn what I need, to get this repaired. Where do I start? I have a bluetooth music receiver with digital out (toslink coax) purchased from overseas. I connected an incorrect power supply and it no longer works (I first connected the...
  4. Ajith Gopi

    Close circuit on click

    I'm new to electronics and I wanna make a circuit that will start continues connection to another circuit on pulse. In long, If the current circuit gets a pulse, an led (suppose) will glow and will not turn off until the battery is disconnected. I'm planning to make a laser-ldr alarm and don't...

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