What is this cap?

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  • Tom41
    Badcaps Veteran
    • Oct 2005
    • 336
    • England
    #1

    What is this cap?

    I just opened up my oscilloscope to check if it had bad caps (or a brand that are likely to fail), and saw this unusual cap. I don't recognize the brand (C.C.L), and it doesn't have a vent on top. Could it be a polymer? Could it be one of the old caps that are designed to vent through the bottom? The oscilloscope is fairly old; it's one of those that uses a CRT tube rather than a digital display.

    Anyone know about this kind of cap?

    If you can't read it, the writing on the cap is:

    C.C.L
    330 uF
    160 VDC WKG
    PK 61 S
    D73
    Attached Files
    Last edited by Tom41; 04-03-2007, 03:45 AM.
    You know there's something wrong when you open your PC and it has vented Rubycons...
    Tags: None
    • gonzo0815
      Badcaps Legend
      • Feb 2006
      • 1600
      #2
      Re: What is this cap?

      I opt for an old can style cap, nothign fancy abouth them. All the older can style caps do not have vent`s. very common in older CRT`s, duno why they used them, but IMHO in those days the caned caps have had better ESR and endurance specs than the sleaved radial ones.
      I replace those with standard caps like Panasonic ED series. etc.

        Comment

        • willawake
          Super Modulator
          • Nov 2003
          • 8457
          • Greece
          #3
          Re: What is this cap?

          is it really 160v? then no way a polymer
          capacitor lab yachtmati techmati

            Comment

            • PeteS in CA
              Badcaps Legend
              • Aug 2005
              • 3579
              • USA, Unsure of Planet
              #4
              Re: What is this cap?

              The highest voltage rating I've seen on a polymer from a brand I'd consider credible is 35V (UCC PS series). That rating, "160V Wkg" (Wkg - Working), suggests to me that it's 1970s vintage or older, well before polymer caps came into usage.
              PeteS in CA

              Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
              ****************************
              To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
              ****************************

                Comment

                • Harvey
                  Badcaps Veteran
                  • Apr 2007
                  • 264
                  #5
                  Re: What is this cap?

                  Looks like a standard 1970's electrolytic capacitor to me. They didn't have vents in those days - they just went BANG.. and you knew about it

                    Comment

                    • starfury1
                      Badcaps Legend
                      • May 2006
                      • 1256
                      #6
                      Re: What is this cap?

                      looks like Old Electro Cap to me too....

                      What Brand CRO is it?

                      CRT cro's are still useful....and the others cost an arm and a leg anyhow
                      You step into the Road, and if you don't keep your feet, there is no knowing where you may be swept off to." Bilbo Baggins ...

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