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Tektronix Probe Readout Pin? What is it for

Discussion in 'Troubleshooting and Repair' started by gmcjetpilot, Oct 21, 2010.

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  1. gmcjetpilot

    gmcjetpilot

    13
    0
    Mar 27, 2010
    I have a Tektronix 2235A Oscilloscope that came with P6109 150KHz probes.
    Tektronix probes have that ground pin at the collar of the BNC. My generic
    China made X1/X10 probes I have don't have the pin.

    There is no automatic switching from X1/X10 range, the selector dial for Vert
    deviation has both scales, you just look at the right scale on the knob's dial.

    It seems in X10 the China probe reads less than the Tektronix?

    Any detailed info would be great.
     
    Last edited: Oct 21, 2010
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
    2,838
    Jan 21, 2010
    You get what you pay for?

    Clearly, if the results differ between the two probes, at least one is inaccurate.

    There are various probe styles, so the difference in the physical aspect of the probe is not an issue (unless you need that feature)
     
  3. shrtrnd

    shrtrnd

    3,821
    519
    Jan 15, 2010
    Yeah, and you got the probe from Tektronix that was made for your scope.
    The generic replacement tried to make itself useful with a variety of different scopes.
    Should I make a joke about Chinese electrons, compared to American ones?
    The Tektronix ground is sometimes necessary for attempting to eliminate noise on extremely small signal measurements.
     
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