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Will This Work?

Discussion in 'General Electronics' started by Virginia Belle, Nov 19, 2003.

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  1. I Know that this is a dumb question but, I am curious anyway.

    Lets just say that I need an 18 volt DC power source and that the source
    has to come from one of those transformers? that plug into the wall and
    change AC to DC.

    What if I only have two of those transformer devices that are 9 Volts
    DC each.

    Now, If I cut the insulation off of the ends of both of those
    transformers, take the two wire ends from each and twist the 4 ends
    together to make two again, plug them in, will THAT make me the 18 volts
    that I need?

    9 + 9 makes 18 doesn't it?

    PLEASE tell me that I have made SOME sense here?

    Thank You
  2. It can work if you connect them correctly. Either you get 18V if wired
    correctly or you get nothing if you connected them wrong.
  3. JeffM

    JeffM Guest

    transformer devices...9 Volts DC each.
    and the maximum current you can pull is the rating of the smaller unit
    (assuming they're not equal).
  4. Guest

    Guest Guest

    I Know that this is a dumb question but, I am curious anyway.
    Yep. Just wire them both in series.

    9V wall wart 9V wall wart
    - o------------------------------+9V GND------------------------o +
    | |____| |
    | |
    GND +18V

    Just like stacking batteries in your flash light...;o]


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