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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.

Recent content by daaaaay

  1. D

    use low source to switch higher source??

    ok that makes scince to use the transistor but i am not sure how to get the secondary source to the motor. the computer is connected to the base, source connected to collector, and emitter is the output to the motor?? i would still get the voltage from the comptuer. i am not sure on the circuit...
  2. D

    use low source to switch higher source??

    Ok. My problem is that i have a source that is to small to move this motor that i have. My source is about .5 volts when low and about 4 volts when high. Is there a circuit that will allow my source of .4 - 4 volts to switch a voltage of about 10?? im open to any options thank you
  3. D

    Stepper Motor help

    Hi. I have designed a stepper motor and photocell circuit which will follow light when seen by the photocells. I already programed everything and am just having touble with finding a way to use the 3.5 to 4 volts from the parallel port of my computer to switch a higher voltage when needed. i...

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