Failed electrolytic?? - diyAudio
Go Back   Home > Forums > Design & Build > Construction Tips

Construction Tips Construction techniques and tips

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 7th January 2010, 05:42 PM   #1
GregH2 is offline GregH2  Australia
diyAudio Member
 
GregH2's Avatar
 
Join Date: Oct 2009
Default Failed electrolytic??

Hi All,

I just accidentally hooked a 50v electrolytic cap to a 9v supply backwards for a few seconds. After switching it back around and upping the voltage to 24v it appears fine, the question is would I know if it had failed? It shows no visible signs of failure and the circuit appears to be working correctly. Is the cap likely to be fine or would it be irreparably damaged now?

Your advice is appreciated.

Greg.
  Reply With Quote
Old 7th January 2010, 05:44 PM   #2
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
It will be fine A 9v battery (PP3 ?) won't have the current to cause damage in a few seconds.
  Reply With Quote
Old 8th January 2010, 12:25 PM   #3
GregH2 is offline GregH2  Australia
diyAudio Member
 
GregH2's Avatar
 
Join Date: Oct 2009
Quote:
Originally Posted by Mooly View Post
It will be fine A 9v battery (PP3 ?) won't have the current to cause damage in a few seconds.
Ok Great!

Thanks.
  Reply With Quote
Old 8th January 2010, 12:56 PM   #4
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
What's a replacement cap going to cost? A dollar? If in doubt, replace it. You're probably OK, but you may not be, and when caps fail, they do so with a mighty bang and lots of shrapnel.

If it were me, that cap would be out of there.
__________________
You might be screaming "No, no, no" and all they hear is "Who wants cake?" Let me tell you something: They all do. They all want cake.- Wilford Brimley
  Reply With Quote
Old 8th January 2010, 01:19 PM   #5
GregH2 is offline GregH2  Australia
diyAudio Member
 
GregH2's Avatar
 
Join Date: Oct 2009
Quote:
Originally Posted by SY View Post
What's a replacement cap going to cost? A dollar? If in doubt, replace it. You're probably OK, but you may not be, and when caps fail, they do so with a mighty bang and lots of shrapnel.

If it were me, that cap would be out of there.
Trust me, I would, but this particular cap has a several week waiting time
  Reply With Quote
Old 8th January 2010, 03:59 PM   #6
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Quote:
Originally Posted by swordfishy View Post
Trust me, I would, but this particular cap has a several week waiting time
Lol... it will be just fine.

Out of interest, if it puts your mind at rest, what value is it, and where in the circuit is it. And if you have a circuit lets see what impedances are around it.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
My 2+1 project; FAILED! Dxvideo Chip Amps 37 3rd March 2008 05:15 AM
failed notification federico moreno Forum Problems 2 20th July 2006 03:03 PM
another failed gainclone theChris Chip Amps 23 20th July 2004 06:23 PM


New To Site? Need Help?

All times are GMT. The time now is 03:15 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2