|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc. |
  |
|
|
|
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 |
 |
|
|
Thread Tools | Search this Thread |
18th February 2010, 04:51 AM
|
#1 |
|
diyAudio Member
Join Date: Nov 2009
|
Capacitor quality issue?
Hello,
New to this forum and I found a lot of useful information here, thank you for everyone. Recently I bought 2 BHC ALS30 22000uF capacitor for the chip amp from RS component. I see the joint between the terminal and the capacitor is rusting?(some brownish color stuff, see the attached photo). Is anyone here see this before? Are they safe to use? I see a few dents on them as well.  The capacitors were shipped from RS Singapore.Thank You for your help. Regards, SK |
|
|
18th February 2010, 07:55 AM
|
#2 |
|
diyAudio Member
|
Could be leaking electrolyte. Can you charge them and see if they hold a charge?
|
|
|
|
18th February 2010, 08:44 AM
|
#3 |
|
diyAudio Member
Join Date: Nov 2009
|
Thanks for your reply Damon. I charge it with a 17V SMPS. After I disconnect it from the supply, the voltage across the terminal decrease slowly, it seems OK.
After I push RS for the explanation, RS sent me the attached photo.... Because of the dents cause by the screws, (RS just put the screws and the capacitor in a plastic bag) RS will send me a new pair. |
|
|
|
18th February 2010, 09:33 AM
|
#4 |
|
diyAudio Moderator
|
Caps are much cheaper than surgery. Bad caps can explode spectacularly, and usually at the worst time. Don't risk it, get new ones that aren't leaky and dented.
__________________
“Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache |
|
|
|
18th February 2010, 10:49 AM
|
#5 |
|
Electrons are yellow and more is better!
diyAudio Member
|
If you'll scratch, is it chemical stuff or does it feel like rust? For me the explanations seem reasonable.
__________________
/Per-Anders (my first name) or P-A as my friends call me |
|
|
|
18th February 2010, 11:31 AM
|
#6 |
|
diyAudio Member
Join Date: Nov 2009
|
It is a coating on top of the metal. To me the explanation seem reasonable too. That photo is from BHC. For the dent, it is the responsibility of RS, so they agree to send me a new pair.
Thank You for the information from SY and peranders. Regards, SK |
|
|
|
24th February 2010, 04:40 PM
|
#8 | |
|
diyAudio Member
Join Date: Jan 2007
Location: Sacramento
|
Quote:
Missed you at BA3. Next year? Ron
__________________
"If it doesn't work properly, hope it catches on fire"- Nelson Pass @ BA3 "I fired up the prototype. Literally." The Prophet Pass. |
|
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Capacitor lifespan and audio quality | KHashmi316 | Parts | 4 | 11th December 2006 04:55 PM |
| Capacitor sound quality, silver mica in particular | klitgt | Parts | 14 | 23rd September 2005 04:54 PM |
| Capacitor Quality and Placement | Milzie | Multi-Way | 8 | 4th January 2003 01:27 AM |
| Capacitor Sound Quality | fmak | Solid State | 17 | 27th June 2002 07:19 AM |
| Precision high quality Capacitor brands/sources | jgwinner | Parts | 8 | 27th May 2002 03:26 PM |
| New To Site? | Need Help? |
| Page generated in 0.08698 seconds (74.90% PHP - 25.10% MySQL) with 11 queries |
