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external trigger for oscilloscope

Discussion in 'General Electronics Discussion' started by pccmd, Aug 15, 2009.

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  1. pccmd

    pccmd

    8
    0
    Jul 28, 2009
    I have an old analog oscilloscope(Tek 7633) and wish to build a tunable external trigger of sufficient quality.
    Any suggestions as to circuit design?
     
  2. amdNRA

    amdNRA

    50
    0
    Sep 3, 2009
    This Tektronix scope should have no problem when using external trigger to syncronize a signal and lock it. What problems are you having? :confused: I doubt one can throw together a somewhat simple circuit that surpasses what Tek has done. :p
    Later, Gil. :)
     
  3. pccmd

    pccmd

    8
    0
    Jul 28, 2009
    ext. trigger 555

    Gil,

    I was trying to trigger with 555->inverter creating spikes of same frequency as sine wave from twin-tee oscillator....but triggering poorly received.

    I did use osc. probe(second one) to input the above trigger signal to my Tek.
     
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