Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,872   Posts: 1,583,451   Online: 1126
      
Page 4 of 4 FirstFirst 1234
Results 31 to 32 of 32
  1. #31
    clayne's Avatar
    Join Date
    Sep 2008
    Location
    San Francisco, CA | Kuching, MY | Jakarta, ID
    Shooter
    Multi Format
    Posts
    2,838
    Images
    57
    I'm still having trouble wrapping my head around the single relay version, unfortunately.

    The zero relay version I definitely won't be trying. If this were 5v and mAmps, maybe I'd be game - but we're talking line voltage here.

    If anything, at least the thread is out there now. None of my previous searches turned up anything in the ballpark.
    Stop worrying about grain, resolution, sharpness, and everything else that doesn't have a damn thing to do with substance.

    http://www.flickr.com/kediwah

  2. #32
    Steve Smith's Avatar
    Join Date
    May 2006
    Location
    Ryde, Isle of Wight
    Shooter
    Medium Format
    Posts
    8,706
    Images
    122
    Quote Originally Posted by clayne View Post
    I'm still having trouble wrapping my head around the single relay version, unfortunately.
    It's simple. When neither enlarger is on, the outputs for both safelights are energised. This turns on the relay whose contacts then connect the safelight to the output of the other timer.

    If timer 1 switches the safelight off, the relay disconnects the safelight from timer 2.

    If timer 2 switches the safelight off, it doesn't matter where the relay is as there is no power being supplied to power the safelight.


    Steve.
    Attached Thumbnails Attached Thumbnails LIGHT.jpg  
    "People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.

Page 4 of 4 FirstFirst 1234


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin