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Blinking DC Christmas Lights

Discussion in 'Electronic Basics' started by W. eWatson, Dec 29, 2008.

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  1. W. eWatson

    W. eWatson Guest

    I bought a string of 10 DC, c-battery, power lights. Is there some device
    that can be connected into it to make the lights blink on and off?

    --
    W. eWatson

    (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
    Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

    Web Page: <www.speckledwithstars.net/>
     
  2. Rich Grise

    Rich Grise Guest

    Maybe a 555 and a relay?

    Good Luck!
    Rich
     
  3. Somehow the question made me think he wanted something off the shelf.

    You used to be able to get adapters that would flash lights that were
    plugged in. Not much more than a pair of prongs on one side, and an
    outlet on the other, and you'd plug your Christmas tree lights into
    that. I gather something would heat up, which would then cause a contact
    to open, at which point it would cool down and the contact would close
    again, causing power to flow and not flow to the outlet. COmpletely
    mechanical.

    So you get one of those, then an AC adapter that puts out the needed
    DC voltage. Plug the flasher into the wall, plug the AC adapter into
    the flasher, then connect the AC adapter's output to the string of
    bulbs, making sure polarity is correct if it needs to be.

    Michael
     
  4. Sjouke Burry

    Sjouke Burry Guest

    I have an almost irresistible urge to demolish
    blinking Christmas lights.

    Stupid irritating things.
     
  5. Tom Biasi

    Tom Biasi Guest

    Is there a chance that you might see his tree from where you are?

    Tom
     
  6. JeffM

    JeffM Guest

    When I got mine in the '70s, they cost ~$1 each.
    Look what the guy wants for one now:
    http://google.com/froogle?q=Christmas-light-flasher&scoring=p&price=between&price1=1
    The current draw will affect the rate, of course.
     
  7. Sjouke Burry

    Sjouke Burry Guest

    Putting 39° 15' 7" N, 121° 2' 32" W into Google Earth....
    Not unless I can borrow time on the Hubble scope :)

    Nice place by the way !!
     
  8. Christopher

    Christopher Guest

    After Radio Shack retires all their components, then I will stop
    making my simple circuits.

    Pull one of the LED's from it's socket and replace it with a blinking
    LED from RS.

    http://www.radioshack.com/product/index.jsp?productId=2117837

    * * * *

    Christopher

    Temecula CA.USA
    http://www.oldtemecula.com
     
  9. W. eWatson

    W. eWatson Guest

    Yes, commercially available. I asked at our local h/w store where I had
    bought the lights the year before. Nothing available.

    --
    W. eWatson

    (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
    Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

    Web Page: <www.speckledwithstars.net/>
     
  10. W. eWatson

    W. eWatson Guest

    Please, by all means, buy some from your local h/w store and do it, if you
    feel the need.

    --
    W. eWatson

    (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
    Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

    Web Page: <www.speckledwithstars.net/>
     
  11. W. eWatson

    W. eWatson Guest

    I'm not sure that would work in the sockets I have. If they do, two of them
    are probably more than I paid for the entire string.

    --
    W. eWatson

    (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
    Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

    Web Page: <www.speckledwithstars.net/>
     
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