Bringing up a old Powersupply

From: ss_at_allegro.com <(ss_at_allegro.com)>
Date: Fri Apr 23 14:39:53 1999

Re:

> > Is this a good idea? [slow power up]
>
> I'm on the fence about it. On the one hand you will find out if you've got
...
> YES. Especially under load. The thing that often fails in a PSU is the
> filter capacitors and weak ones will show up as ripple and ripple will

Several friends who collect old radios swear by the VARIAC. They
claim that the old capacitors "dry out", and that running them at,
say, 80 V for a few hours (or a day) rejuvenates them. I've heard
time requirements vary from an hour to a day, unfortunately.
Received on Fri Apr 23 1999 - 14:39:53 BST