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  1. #1

    Default Wiring an Older National Time & Signal Clock

    Disclosure: I know very little about clocks or wiring. My son is obsessed with clocks and really wanted a clock for home just like the one at his school. I purchased one from eBay and have ZERO clue how to get it running.

    I talked this through with a gentleman at Radioshack who gave me a plug and some wire connectors. He stated that I should strip the wires on the new plug and on the clock itself, stick the clock wires in one end and plug wires in the other, and I would be good. No dice. Here is an image of what I am working with, any help is greatly appreciated!

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  2. #2
    Forums Administrator harold bain's Avatar
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    Default Re: Wiring an Older National Time & Signal Clock (By: pfizur)

    Have a good look at the motor on the clock. I suspect it may be 24 volts AC. It should give its voltage on the side of it.
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

  3. #3

    Default Re: Wiring an Older National Time & Signal Clock (By: harold bain)

    Ah ha, you are correct, small black lettering on the motor itself suggest 24V. So this little 12V plug I have is just not giving me enough power, yea? Do you know if there is something similar that will put out the 24V this block needs? Any better solution?

  4. #4
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    Default Re: Wiring an Older National Time & Signal Clock (By: harold bain)

    Harold is correct, this is an AC motor. I believe that that the adapter you purchased has a DC output and is not appropriate.

    David
    David S

  5. #5
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    Default Re: Wiring an Older National Time & Signal Clock (By: pfizur)

    I recently helped a friend of mine with a low current application that required a 24v ac input and suggested an inexpensive door bell transformer. Work great. They have poor regulation and while sometimes rated at 16 volts they may give close to 24 at very little load.

    David
    David S

  6. #6
    Forums Administrator harold bain's Avatar
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    Default Re: Wiring an Older National Time & Signal Clock (By: pfizur)

    You could buy a new 110 volt AC motor so you can plug it directly into the wall. What does your "12 volt plug" look like??
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

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