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Thread: 9 Volt Power Supply

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  1. #1

    Default 9 Volt Power Supply

    I have a Basic Stamp homework board that I want to run 24x7. Can anyone recommend a porew adaptor and battery connector cable? Do I need to make this myself?

    Thanks,

    Post Edited (jwalker) : 9/25/2008 10:07:22 AM GMT
    Last edited by ForumTools; 10-01-2010 at 06:39 PM. Reason: Forum Migration

  2. #2

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    Please add a subject line to your post. Use the pencil in the upper right.

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    - Stephen
    Last edited by ForumTools; 10-01-2010 at 06:39 PM. Reason: Forum Migration

  3. #3

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    1) Please edit your thread and add a subject. Use the pencil icon in the upper right hand corner of the message window.

    2) RadioShack sells a nice, compact 6V AC adapter (#273-1763). There's also a 9V adapter (#273-1768) if you prefer that.
    Both would require a 9V battery clip (#270-325) that you'd have to solder onto the leads from the AC adapter.
    Be aware that the colors on this battery clip are for connecting to a battery, not substituting for one and they're
    backwards for what you want (black = +9V, red = - 9V). Make sure you check that it's wired correctly and has the right
    voltage polarity (with a multimeter) before you connect it to your homework board.
    Last edited by ForumTools; 10-01-2010 at 06:39 PM. Reason: Forum Migration

  4. #4

    Default

    Thank you.
    Last edited by ForumTools; 10-01-2010 at 06:39 PM. Reason: Forum Migration

  5. #5

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    Excellent call on that classic mistake, Mike. It's a rite of passage to destroy something the first time one uses a 9V battery clip as a PS connector, assuming that red is always positive. If followed, your sound advice keeps the magic smoke inside the chip, where it does the most good.

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    "If you build it, they will come."
    Last edited by ForumTools; 10-01-2010 at 06:39 PM. Reason: Forum Migration

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