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source for cheap high current power supplies (3.5-5VDC, 3.5A)

Discussion in 'Electronic Design' started by Michael, Apr 24, 2007.

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  1. Michael

    Michael Guest

    Hi - I need to purchase 20 AC to DC power supplies. They need to
    output between 3.5VDC or more (ideally 4-5VDC), and be able to source
    at least 3.5A. I was hoping to get them for under $10 each, but I
    can't find anything even close to that.

    Any ideas? Maybe some surplus places?
  2. Here is the closest I found from Mouser:
  3. Mike Monett

    Mike Monett Guest

    I usually get surplus pc power supplies in working condition for $10.00.
    They supply 5V at 20 to 30 Amps. You have to short two pins on the ATX
    connector to turn the power supply on. I searched briefly for a link
    showing this but couldn't find one.

    You may have to clean accumulated dust from the inside. Sometimes the fans
    need replacing. In other cases, it may seem as if the pc was hardly ever


    Mike Monett
  4. Guest

  5. Michael

    Michael Guest

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