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  1. #14
    Join Date
    Aug 2005
    Posts
    828
    These are the ones Im talking about

    http://www.uri.com/is-bin/INTERSHOP....A&OnlineFlag=1
    eventu rerum stolidi didicere magistro

  2. #15
    Join Date
    Sep 2002
    Location
    South Dakota
    Posts
    6,579


    Yup, we are on the same page.

  3. #16
    Join Date
    Sep 2002
    Location
    South Dakota
    Posts
    6,579


    They are SCR or TRIAC controlled. A TRIAC is just two SCRs wired in reverse parallel.

    As long as the gate is energized, they continue to conduct.

    The circuit connected to the gate determines if and when they conduct. They connect the resistor/capacitor circuit to the gate to create a timer.

    If the circuit is a time on break circuit they use an intergrated circuit as a relay to reverse the process. Thus they can create them to open on delay or close on delay, your choice.

    Norm

  4. #17
    Join Date
    Aug 2005
    Posts
    828
    Ok, thanks. Im getting the duct tape for my head now.

    eventu rerum stolidi didicere magistro

  5. #18
    Join Date
    Sep 2002
    Location
    South Dakota
    Posts
    6,579
    Originally posted by cg2
    Ok, thanks. Im getting the duct tape for my head now.

    Silly putty works for me!


  6. #19
    Join Date
    Jun 2006
    Location
    right, here! in the heartland of the homeland!
    Posts
    737

    york gas pac has one of these

    klixon type resistor for a r/o switch, anyone can explain the function between the reading of having resistance reading on ohms, and a zero reading? and why its good if its zero, but not if it has a resistance reading?

  7. #20
    Join Date
    Jun 2006
    Location
    right, here! in the heartland of the homeland!
    Posts
    737

    this is universal info

    and lingo, i just got in a hurry and didnt read, and yes, that solid state would be the board that gets the burnt mark that is down the line from the tdr, cool!
    so much for pot relays, same theory , just modified, and a different application,,, as to the back emf

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