Please help identify a capacitor

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  • jpyerry
    Senior Member
    • Jan 2013
    • 94
    • USA
    #1

    Please help identify a capacitor

    I really hate to post a newbie question, but I need help identifying a capacitor. I have attached a photograph containing two capacitors, I am almost certain they are mica capacitors. I have searched for how to read the codes on the capacitors and I just cannot seem to figure out what they mean. I also tried measuring the capacitance with my multimeter to try to narrow down the possibilities to give me a clue as to how to read the values, unfortunately my meter gives me wildly inconsistent numbers every time I try to test the capacitance, so no help there.

    If anybody can tell me how to read the codes on these, it would be greatly appreciated.

    Thank you very much.
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    • R_J
      Badcaps Legend
      • Jun 2012
      • 9514
      • Canada
      #2
      Re: Please help identify a capacitor

      The look like cornell dubilier mica capacitors 20pf/100v and 50pf2%/300v
      You need a capacitor meter to read the capacity.
      Last edited by R_J; 10-20-2020, 09:20 AM.

        Comment

        • jpyerry
          Senior Member
          • Jan 2013
          • 94
          • USA
          #3
          Re: Please help identify a capacitor

          I appreciate your help.

          So, the ".7" after the twenty doesn't mean anything? I wasn't sure if it was a multiplier or some sort of tolerance specification I wasn't aware as this is the first time I have actually seen mica capacitors and it was really throwing me off.

            Comment

            • R_J
              Badcaps Legend
              • Jun 2012
              • 9514
              • Canada
              #4
              Re: Please help identify a capacitor

              Never mind
              Last edited by R_J; 11-27-2020, 04:47 PM.

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