wire toner

Discussion in 'The Projects Forum' started by Nielss, Feb 26, 2013.

  1. Nielss

    Thread Starter New Member

    Mar 18, 2012
    2
    0
    Any body how knows how built a wire tracer circuit the toner and probe.
     
  2. Nielss

    Thread Starter New Member

    Mar 18, 2012
    2
    0
    thank you.
     
  3. MrChips

    Moderator

    Oct 2, 2009
    12,432
    3,360
    Build a two-transistor oscillator as the tone injector.
    Build a probe using a transistor preamp followed by an earphone driver.
     
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