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

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  • 5 Comments sorted by Votes Date Added
  • edited September 2008 Posts: 0Vote Up0Vote Down
    Please add a subject line to your post. Use the pencil in the upper right.

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    - Stephen
  • edited September 2008 Posts: 0Vote Up0Vote Down
    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.
  • edited September 2008 Posts: 2Vote Up0Vote Down
    Thank you.
  • edited September 2008 Posts: 0Vote Up0Vote Down
    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."
    Now why did it do that?
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