[rescue] Help me rescue my Sun Ultra 10 (2x)

[Dave McGuire]

On 12/15/25 11:37, HP van Braam via rescue wrote:
>> When doing the visual inspection, are you checking for bulging, or
>> just
>> leakage?  I've seen plenty of caps visibly bulging without any
>> leakage
>> apparent, but if you don't know to look for it it's easy to miss.
> 
> I was looking for bulging, or broken relief cuts in the top. I didn't
> see any but maybe I don't really know what I'm looking for. That's very
> possible. :)

   If the "splodey lines" have opened up, there will usually be a much 
larger mess.  When that happens, it is often violent.

   One thing to watch out for, and we see this at the museum all the 
time, is leakage *under* electrolytic capacitors that is not visible 
until you actually remove them.

   One way to check for this without actually removing them is to heat 
one of their leads with a soldering iron.  If you get a whiff of fish, 
that's amines in the electrolyte.

             -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA