The above Ad will no longer appear after you Sign Up for Free!

Flicker Lamps Flickering

Discussion in 'Question of the Day' started by Footer, Jun 22, 2006.

  1. Footer

    Footer Senior Team Senior Team Premium Member

    Messages:
    9,462
    Likes Received:
    1,870
    Location:
    Saratoga Springs, NY
    This is a problem that I had to solve on the show I currently have up. We have two chandaliers in the show with 10 3w flicker lamps per chandalier. I have them patched into CD80 2.4k portable dimmers. When there is no signal being sent to the dimmer 1 or 2 lamps on the chandaliers would randomly flicker at any given time. What do you think the problem is and how did I solve it?
     
  2. ship

    ship Senior Team Emeritus Premium Member

    Messages:
    6,255
    Likes Received:
    522
    Location:
    Illinois
    Is that all you have for load on the dimmer?

    Start by ghost loading the dimmer. Install something backstage to add load to the dimmer otherwise it won't work properly. Most dimmers especially CD-80's need a minimum loading of 75 watts to function.

    What you are probably getting given the wattage of the lamps is the 10-20v warming voltage sufficient to do something with the neon flicker part of the lamp.
     
  3. Footer

    Footer Senior Team Senior Team Premium Member

    Messages:
    9,462
    Likes Received:
    1,870
    Location:
    Saratoga Springs, NY
    Thats exacly what it was and exacly what I did. I have clip lights patched into those dimmers with 40w lamps in them blackwrapped.
     
  4. soundman1024

    soundman1024 Active Member

    Messages:
    351
    Likes Received:
    2
    Location:
    Denver
    A lot of dimmers have what is called "warming voltage." They send some power out even when all the way off. This is so that lamps turn on faster when you start sending power. Perhaps if you put some other load on that dimmer that could absorb the warming voltage the flickering would be resolved? Anyone else with thoughts about that?
     
  5. DarSax

    DarSax Active Member

    Messages:
    606
    Likes Received:
    9
    Location:
    Bethesda MD

    Er...I hate to call you on this one, but uh...scroll up ;)
     
  6. Thomas

    Thomas Member

    Messages:
    88
    Likes Received:
    1
    Location:
    Durban, South Africa
    I recently had a similar problem with an old Zero88 betapac I dimmer- two channels (5 and 6, on phase 3) would randomly flicker on and off, or stay on. It began being just as a 'warm up routine' but ended up happening during shows as well- imagine a deep blue wash in a very powerful dramatic scene, when suddely two amber fresenels go wild!

    I took them in to be serviced and had R1500 worth of work done replacing transistors and the like. They seem to be working well, maybe take yours in to be kicked around a little as well...
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice