recommend: a low cost oscilloscope for reviewing pc psus esp. measuring ripple

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  • ChaosLegionnaire
    HC Overclocker
    • Jul 2012
    • 3264
    • Singapore
    #1

    recommend: a low cost oscilloscope for reviewing pc psus esp. measuring ripple

    as above. im looking at the dso138 and dds120 but the dso138 only has a bandwidth of 200khz. not sure if that is enuff to "catch" the ripple frequency in a pc psu.

    as for the dds120. its a usb based oscilloscope so im not sure how accurate its going to be if its going to be plugged into the very pc its going to be measuring! also not sure if the bandwidth of 20mhz is enuff and if the voltage range is large enuff to measure the 12v rail of the psu.

    anyone have any other sub $50 oscilloscope recommendations for ripple measurement jonny guru style in a pc psu?
    Tags: None
    • Per Hansson
      Super Moderator
      • Jul 2005
      • 5895
      • Sweden
      #2
      Re: recommend: a low cost oscilloscope for reviewing pc psus esp. measuring ripple

      Don't buy a crap USB scope, spend the money on a used analog scope on eBay if it's your first scope.

      https://www.youtube.com/watch?v=lZfbo-2sd1A
      "The one who says it cannot be done should never interrupt the one who is doing it."

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