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Thread: Sometimes I love exploding capacitors

  1. #31

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    Capacitor? You'll call that a capacitor? This is a capacitor:

    4uF 40 kV.jpg

    That's a 4uF 40 kV test frankencap one of several I have for tesla coil experiments.

  2. #32
    Join Date
    Jan 2014
    Location
    Melbourne, Australia
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    I wouldn't want to be around that if it went off.
    Bobby.

  3. #33
    Join Date
    Apr 2015
    Location
    Austin, Texas
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    I had a trial by fire recapping my first Asus board (P4P800-E Deluxe).

    It showed me that Asus prints component maskings backwards on all components, so when I powered the board up after recapping nearly the entire board, every cap erupted in my face and sprayed electrolyte everywhere. When re-capping it a second time, I had to constantly remind myself to install all of the caps backwards. The only three manufacturers I've ever seen do it are Asus, ASRock and Pegatron (which are all the same company now.)

    I've had a few close calls with caps detonating inside PSUs, fortunately the case contained the shrapnel.

  4. #34
    Join Date
    Dec 2005
    Location
    Toronto ON Canada
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    6,959

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    FWIW, I always draw a map showing values and orientation before removing old caps for replacement.

  5. #35
    Join Date
    Jan 2014
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    Freedom City
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    So do I, but I've had capacitors in recent years that exploded, or at least became an open circuit, on first power-up, even when installed correctly. I don't know if the capacitors are mislabeled or just really poor quality.

    A scrap sheet of perspex goes a long way.

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