does anyone know how to reactivate dry capacitors?

[hugobross]

Hi,

I just got a lot of power supplies and huge capacitors (8 * 37000 µf) for free. That man told me the capacitors are a little dried out, but it's possible to reactivate them, does anyone know how I can realise that??

Thanks a lot.

HB

 

[Hoffmeyer]

Hi Hugobross.
I've heard a lot of stuff about capacitors, but when it comes to dried out capacitors, I've only heard one thing: Buy new ones, but since I've got some old ones as well as You do, it would please me if it's possible to bring them back to life.

 

[Geoff]

Restoring electrolytics was the topic of another thread. Have a look at: http://www.diyaudio.com/forums/showthread.php?threadid=390

 

[Petter]

There are instructions at http://www.angela.com.

What you do is that you basically set them up with limited current for about an hour.

Petter

 

[hugobross]

thanks

Hey, thanks to all of you;
I'll try it out right know, if anyone has other ideas, just tell me..

best regards,

HB

 

[djk]

Mepco suggests heating the capacitor to its maximum rated temperature before re-forming.This helps to re-distribute the electrolyte.Charging current should be limited to about 10mA.