Stereo Plug's extra cable

Discussion in 'General Electronics Chat' started by wql, Jan 6, 2011.

  1. wql

    Thread Starter New Member

    Jan 6, 2011
    7
    0
    Hi,

    I working on this project which I am using a transceiver to transmit analog signals generated from the signal generator. I am planning to use the external MIC connector to connect the signal generator to it with the help of a stereo plug cable with the other end as a pair of crocodile clips to clip to the signal generator. But the external MIC connector is meant for stereo plug cables. So my question is to ask what should I do with the extra third cable of the stereo plug cable cause my signal generator only require two cables (for the signal and ground)?

    Thanks

    Regards
     
  2. JDT

    Well-Known Member

    Feb 12, 2009
    658
    85
    Connect the right and left stereo channels together. Probably the "tip" and "ring" of your stereo jack. Or is your microphone input a different kind of plug?
     
  3. wql

    Thread Starter New Member

    Jan 6, 2011
    7
    0
    But if lets say my stereo jack has 3 cables coming out from the base of it. Is it alright if I connect the L and R cables together, and connect this combine cable to the same signal generated?
     
  4. JDT

    Well-Known Member

    Feb 12, 2009
    658
    85
    Quite alright!
     
  5. wql

    Thread Starter New Member

    Jan 6, 2011
    7
    0
    Okay, thanks a lot! :)
     
  6. wql

    Thread Starter New Member

    Jan 6, 2011
    7
    0
    hi again, I just realised that schematic diagrams shows that for the middle connector (in middle the two ring), there is power supplied from its internal 3V line through a 100 ohms resistor. So I don't think is alright to connect that channel to the signal generator?
     
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