Exploding Electroytic

[billstein]

Was working on a pedal tonight, plugged it in to test  and had a 100uF electrolytic explode on me! Anybody else ever have this happen?

[kothoma]

Luckily no. Only heard of it. Wrong polarity?

[billstein]

Luckily no. Only heard of it. Wrong polarity?

That's the first thing I thought of. I checked it and it was right. I looked it over and couldn't find anything wrong so I soldered another one in there and fired it up pointing it away from me just in case. So far everything's good.
This was pretty radical, I think it could cause an injury if the case that blew off hit me. I have no idea where it landed.

[Gilmourisgod]

I wired a power jack wrong, cap blew up in my face as I was leaning right over it, lucky I was wearing glasses.

[jkokura]

Wow! You're fortunate you were wearing glasses. I had one of those blow, and it would seriously damage an eye quite easily.

Jacob

[mcalaff]

Months ago I use a wrong power supply and a electrolytic cap. exploded fortunately inside the pedal. Fortunately the pedal works well with a new cap.

The problem was use an AC adaptor instead of an DC adaptor. A confusion when I bought it.

[slimtriggers]

I've done it.  Scared the crap out of me   I had the wrong polarity on my wall wart.  Thought I'd flipped the diode in the power filtering section, so I pulled it out and re-soldered it the other way.  I did this despite verifying the component was correctly installed per the layout and schematic.  The problem was that I wasn't getting any voltage after the diode, so the schematic had to be wrong.  Right?  Luckily I wasn't hurt and all the other components survived.

The moral of the story is to verify that your power supply polarity is correct before beginning to debug your circuit

[pedalman]

Had that happen to me last year. Coming to Jesus meeting. Every once in a while we need those reminders. Makes you slow down and double check your work

[juansolo]

Yup, got the polarity wrong. It goes bang in a big way and make a surprising amount of mess.

[CRBMoA]

Was working on a pedal tonight, plugged it in to test  and had a 100uF electrolytic explode on me! Anybody else ever have this happen?

I was working this summer on a DIY P/S that I built 25 years ago. I had overloaded it and blew up a cap. Replaced the cap, but had not identified any other defects caused by my misuse of the P/S.

I used the correct cap, and the polarity was correct. The voltage rating was more than adequate (according to the original build docs).

I powered it up after replacing the cap, and it sounded like a .22 went off in my face, and the metal jacket BARELY missed my face.

I do not have that P/S anymore.

[jvg13]

.

[jball85]

my first neovibe build blew up both huge 100ufs at once, I thought that I was gonna have to start over, luckily that wasnt the case. I had the rectifier in backwards (oops).