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Breadboard I need a Vcc

  1. Sep 18, 2006 #1
    Hi, I have a simple breadboard setup with an inverter IC, LEDs, etc.

    I have a GND/Vcc wire, now I need something that I can send +4.5v through.

    mY professor mentioned I can use three 1.5 double A batteries in series, but how would I go about doing this?

    What tools do I need?

    This is for when I have to test the circuit when im at home and can't go to the lab.

  2. jcsd
  3. Sep 18, 2006 #2


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    Staff: Mentor

    Do you have a Radio Shack or other electronics store near you? They will carry some prototyping supplies, including AA battery holders.

    If not, Digikey.com has them:

    http://www.digikey.com/scripts/DkSearch/dksus.dll?Filter [Broken]
    Last edited by a moderator: May 2, 2017
  4. Sep 19, 2006 #3
    can you get me the right link to digikey? it doesn't work :(
    i'm not sure what to search

    also, radioshack doesn't have the AA battery holders, in series... i need one with 3, so i can supply 4.5v

    any other ideas?
  5. Sep 19, 2006 #4
    also, would the battery holder be in "series" or one that is in 'parallel' or does it not matter
  6. Sep 19, 2006 #5


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    Staff Emeritus
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    They must be in series. If the batteries were in parallel, you'd only get 1.5V out of them (though you'd have a higher current capability).

    - Warren
  7. Sep 19, 2006 #6


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    Perhaps you should abandon the electronic project and work on some fundamental circuit projects. You need to understand DC circuits before you can comprehend the electronics. I think you are getting ahead of yourself if you do not know how to connect 2 batteries in series. Find a project book on simple DC circuits and work your way through that, then tackle an electronics project.
  8. Sep 19, 2006 #7


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    Staff: Mentor

    How about just getting a 5Vdc wall transformer and a mating connector? You can get those lots of places.
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