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.
    Attached Files
  • R_J
    Badcaps Legend
    • Jun 2012
    • 9579
    • 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.

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    • 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.

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      • R_J
        Badcaps Legend
        • Jun 2012
        • 9579
        • 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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