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  • 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.

push button

  1. R

    I need help with a push button...

    I am a newbie in electronics. I need a circuit (which I can use as a subcircuit) in Logisim 3.8.0 When the pushbutton is clicked ONCE, the LED should come on and STAY ON. Here when the clock sticks over, the LED turns off off. I want the LED to stay on! When I click the push button the LED...
  2. D

    Luminated switch for prop replica

    Hi there, I have to wire up x3 5 pin illuminated push buttons for a prop replica, and just need a little guidance on powering just the light in the switch. The switches will have to function other than to be lit up. These are 12v switches. Do I need a 12v battery per switch, or is there a...
  3. S

    Using a push button as start for countdown timer with 74190 ICs

    I´ve been thinking for hours and just can't seem to find a way to do this. As a final project i need to make a presetteable countdown timer using 74190 ICs, i know how to preset numbers using the DATA inputs and how to connect between the 74190s, the problem is that after presetting a number i...

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