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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. C

    SOLVED--Is it possible to break a circuit by closing it?

    Hello, I'm hoping to modify a simple circuit but I'm not sure what I have in mind is possible without replacing one of the main parts. The application was for adding water to two rechargeable banks of 2 volt batteries, a process that took a very long time pouring from a watering can, which had...
  2. P

    Switching from 6 to 3 apa106 leds - issues

    Hi Everyone! I have reached a point of semi-desperation with a project on which I am working for over a year now. There is one issue I doesn't seem to be able to fix. I have a nixie clock pcb which drives 6 apa106 rgb leds. I am trying to wire it up to be able to turn off three of these leds...
  3. hesam_m

    Please share your experience on noise reduction in mixed signal circuits

    Hi, Please share your opinion on noise reduction techniques in mixed-signal circuits, PCBs. your experience, tips .. etc
  4. A

    How to activate 12V/2A electromagnet with 5V (USB power) each 60 minutes?

    Hi all, I feel like I am stuck because don't know how to solve following "simple" solution: Somehow I have to (each 60 min) activate 12V/2A electromagnet, with 5V input voltage (tipical PC USB (5V/100mA). 5V is powering microcontroller, and with that microcontroller, each 60 min I have to...

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