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Thread: Voltage question

  1. 20-01-2007, 07:08 PM #1
    VaNcE
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    Voltage question

    Hi all
    As I was being "dragged" around Ikea today I bought some 12" long "wires" that Illuminate. As they were only 10p I bought a few. The problem is they each run off 2 aa 1.5v batteries. Is there a way I can Run them from the Pc Psu
    and if so is there a way to string them together ? And I would also like to have them on a switch on the Pc case. At the moment the switches are : 1 is offf. 2 is flashing. and 3 is on.
    Any help appreciated
    Cheers
    Vance
    Last edited by VaNcE; 20-01-2007 at 07:13 PM.
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  2. 20-01-2007, 08:54 PM #2
    CrazyMonkey
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    Quote Originally Posted by VaNcE View Post
    Hi all
    As I was being "dragged" around Ikea today I bought some 12" long "wires" that Illuminate. As they were only 10p I bought a few. The problem is they each run off 2 aa 1.5v batteries. Is there a way I can Run them from the Pc Psu
    and if so is there a way to string them together ? And I would also like to have them on a switch on the Pc case. At the moment the switches are : 1 is offf. 2 is flashing. and 3 is on.
    Any help appreciated
    Cheers
    Vance
    I was dragged around yesterday also
    Cant you just wire them together? Any pictures? if you can take them apart and see what is going on.
    I wouldnt know if you can run them off the PSU but i suppose you should be able to.
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  3. 20-01-2007, 09:16 PM #3
    GoNz0
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    daisy chain the wires till you hit 12v, so its 4 in a chain 4x3volts = 12v
    must make sure all are switched on and then run a switch to turn them on and off while the PC is running.

    you must wire in parallel, so a positive wire to the 12+
    the neg from that 1st light to the positive on the 2nd, the 2nd neg to the positive on the 3rd, the final negative wire will go to the switch then on to the earth.
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  4. 20-01-2007, 09:31 PM #4
    TheAnimus
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    if its running from batteries you might find that you want to compensate for the resitance.

    Lots of cheapo designers use the fact that if you put an LED over a battery (which creates a short circuit) the internal resistance limits how much current can go through.

    Now the ATX psu will happily allow enough current to go through to make the LED short.

    But if its a wire that illuminates, i'm thinking EL. Which is totally different.
    throw new ArgumentException (String, String, Exception)
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  5. 21-01-2007, 02:04 PM #5
    VaNcE
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    Thanks for the replies guys
    I have taken a picture of the things bu how do I post them ?
    Cheers
    Vance
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  6. 21-01-2007, 02:07 PM #6
    dave87
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    Upload them to something like ImageShack and then use the [img][/img] tags
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  7. 21-01-2007, 02:17 PM #7
    VaNcE
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    Cheers Dave87
    I hope this works..LOl
    Ok didnt work ,,I need a min of 5 posts
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  8. 21-01-2007, 02:18 PM #8
    VaNcE
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    Ahhh
    Made a balls of that
    Last edited by VaNcE; 21-01-2007 at 02:26 PM.
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  9. 21-01-2007, 02:18 PM #9
    VaNcE
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    OOps .Thats a bit big..Sorry guys
    Cheers
    Vance
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  10. 21-01-2007, 02:26 PM #10
    VaNcE
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    hmmm
    Last edited by VaNcE; 21-01-2007 at 02:31 PM.
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  11. 21-01-2007, 04:13 PM #11
    CrazyMonkey
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    Any pic yet? There is also a button called "Edit"
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