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Momentary DPDT normally open to normally closed?

Discussion in 'General Electronics Discussion' started by rudeez, Sep 9, 2011.

  1. rudeez

    rudeez

    6
    0
    Jul 22, 2011
    Hi

    This might be a very, and i say very stupid question but i just can't figure it out.
    Is it possible to wire a Normally Open Momentary (yes, they are momentary :) ) DPDT Footswitch to a Normally Closed one? Could anyone then tell me how to wire it or even better do a fast Paint skiss of it? Im wiring it to a mono jack so it's ground + signal.
    The switch i have are below:
    [​IMG]
     
  2. shrtrnd

    shrtrnd

    3,656
    452
    Jan 15, 2010
    Do you have an ohmmeter, or just anything to identify when the switch contacts are open or closed?
    Typically, you have three contacts to a switch like the one shown.
    The center contact is common to the two outside contacts.
    One of the outside contacts would be NC to the center contact, the other outside contact
    would be NO to the center contact. They reverse continuity when you activate the switch.
    The switch you show is either a standard switch with TWO SETS of the contacts I
    just described above.
    (Unless this is some specially built job that has 3 sets of simple on/off activation.
    which would be highly unusual, but possible).
    If you don't have an ohmmeter:
    I use a battery and a miniature (voltage) light bulb. Make a circuit through the switch
    so that bulb lights when switch NC, and off when NO, ...Just so you know what the
    contacts are doing (open or closed).
     
  3. davelectronic

    davelectronic

    1,079
    12
    Dec 13, 2010
    Momentry switch

    Hi you could depending on use use a relay to change contact arrangements, but that involves power to the relay coil push to make or push to break, any number of poles, the coil would be momentarily energized or energized all the time, depending on switch contact arrangement, but a relay might not be appropriate, foot switches can get foot switches with either contact arrangement, push to make or push to break, and yes use a meters continuity setting to see if you can achieve the output switching arrangement your looking for. Dave. :)
     
    Last edited: Sep 13, 2011
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