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adding power voltage to microphone

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    #1

    adding power voltage to microphone

    I have a computer mic rated at 1.0 to 10 VDC. I want to use it in an RCA application. I was hoping for some suggestion in addition to my plan to stick a 9 V battery (alkaline) in the positive path and a loop if I need the audio signal to remain constant. DONT LAUGH I AM ADAMANT.

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    #2
    Re: adding power voltage to microphone

    See http://www.epanorama.net/links/pc_so...ml#interfacing for the plug wiring. 0V is the Common (-ve or GND) terminal.
    Since you mentioned that the microphone runs from 1 to 10V, a 9V battery can be connected directly to it (with a switch to save the battery when you're not using it).
    Battery -ve to GND (3 - Shield)
    Battery +ve to Ring (2) via a switch
    RCA shield to GND (3 - Shield)
    RCA centre conductor to Tip (1)
    My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.

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      #3
      Re: adding power voltage to microphone

      Thanks, I tried but it just didn't work, Don't know why..Got some click when connecting power but no mic pickup. Not the end of the world

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