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    Need your guys help bad

    I need some help here. I have this chronograph that the printer isn't working properly.All of the functions it does work fine except for printing. It used to work as seen by the photo of the print out. The pic on the left is what it should look like and the pic on the right is what it is doing...
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    Questions about ac to dc converters

    I have an item that was told needs a 6 volt dc center positive 2.1 mm converter. I was in my basement tonight and happened to look through one of our junk boxes and found this. A converter that says: in: 120v ac 60hz out 7.5v dc 200mA Would this work? If not where can I find 2 of them...
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    Repairing a battery contact

    I have a hand held scale that my buddy needs repaired. He told me the battery contacts are broken. Is this something that can be fixed?
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    homemade chronograph for archery

    Does anybody have any plans or ideas to help me construct a chronograph that will be used for archery.
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