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Thread: Leash electronics- 3 stage timer

  1. #1
    msdtech1955 Guest

    Default Leash electronics- 3 stage timer

    LEASH ELECTRONICS- 3 STAGE TIMER
    with 6 and 7 series ,with a timing computer.
    using 5 pin relays to activate ground for retard--
    uversion3-JEP.JPG

  2. #2

    Default

    If using this timer with Power Grid do you have to use it as ground to control retards? I thought the retards were controlled off of hot and not ground. Please advise.

    Thanks

  3. #3
    msdtech1955 Guest

    Default

    the retard in the drawing is based off of the 8970-8975-8980-etc. these step retards
    are Activated when removed from ground.

    the 7730( grid) 7531-7530t --- is activated with +12 volt input is applied
    to the step retards

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