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  1. S

    555 timer

    Nope, that's how I made it. If I disconnect the output/diode junction from ground, would it sink the current?
  2. S

    555 timer

    Can you tell me what is wrong with my timer. I want it to make a relay open and shut periodically. For some reason it's not working.
  3. S

    555 & 556 timers

    No, I've never heard of this. I'm new to electronics and was hoping to use the 555 timer because I understood it.
  4. S

    555 & 556 timers

    I'm planning on using a 556 timer for a 3-way solenoid valve. I need to have both valves closed for a period of 10 seconds, then open the first valve for 20 ms, followed by the opening of the second valve for 20 ms. This is astable. Is it possible to line up the timing using a 556 timer or do...
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