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A question about AC adaptor/battery

Discussion in 'Electronic Basics' started by Smoky McPot, Sep 14, 2003.

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  1. Smoky McPot

    Smoky McPot Guest

    I have a set of PC speakers that have an AC adaptor for power. It is
    9vAC @ 1000ma. I know little about electronics, but I would like to be
    able to make these speakers battery powered, even if only for a couple
    of hours. What batteries/parts should I look for to put this together?
    Thanks in advance
  2. Go to Radio Shack and buy a battery holder that holds 6 AA cells and a
    power plug similar to the one on the adapter. Then wire the plug to
    the battery holder so it puts out the same polarity. You may want to
    buy a cheap volt meter at the same time to verify this. 6 alkaline
    cells in series produce 9 volts.
  3. Smoky McPot

    Smoky McPot Guest

    Thanks for the reply! I'll post my result.
  4. I just noticed you said 9 volts *AC*. You won't have to worry about
    the polarity, because the speakers must have rectifiers inside.
  5. Smoky McPot

    Smoky McPot Guest

    Thanks John. This worked perfectly!
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