Dumb question from newbie time !

Discussion in 'General Electronics Chat' started by clayjay, Jan 9, 2009.

  1. clayjay

    Thread Starter New Member

    Jan 9, 2009
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    Can someone explain this to me please (see attached JPG). I have a wiring diagram of a transformer (1) and the pin layout of the transformer itself (2). Now looking at the diagram I would expect continuity between A+B+C on one side and D+E on the other, but what I am getting is continuity between A+E on opposing sides and B+D again on opposing sides with pin C dead. Can someone draw how this is connected inside to explain how this is working.
     
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  2. mik3

    Senior Member

    Feb 4, 2008
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    If the transformer is connected to other devices, while taking measurements, you may get wrong results. However, I believe the continuity test is right and that pin C is not connected to anything. Where did you find the diagram?
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
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    Can you post a photo of it?

    I'm suspecting that instead of being a transformer, it's a relay.
     
  4. clayjay

    Thread Starter New Member

    Jan 9, 2009
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    No it's a step up transformer. It's like the tiny ones you find in Cameras to power the flash and it isn't connected to anything.

    Forget about the wiring diagram for the moment, can anyone explain why I would be getting continuity diagonally on opposing sides rather than on the same side?
     
  5. mik3

    Senior Member

    Feb 4, 2008
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  6. Alberto

    Active Member

    Nov 7, 2008
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    If it is a step up transformer, this make sense. traying to have the biggest distance between low side and high side.
    The non connected pin, very likely is the copper foil shielding primary from secondary and must be grounded.

    But naturally are all supposition.

    Alberto
     
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