Paul Thu, 30
Apr 2020 07:51:04 GMT in alt.computer.workshop, wrote:

Commander Kinsey wrote:
On Fri, 14 Feb 2020 15:54:04 -0000, Rene Lamontagne
wrote:

On 2020-02-14 4:20 a.m., John Doe wrote:
"Commander Kinsey" wrote:

Motherboards used them over a decade ago, so why do I still
find leaking electrolytics in TVs?
https://www.extremetech.com/extreme/...e-launches-sol
idca pacitor-motherboard-line?

Nothing wrong with real electrolytic capacitors. Anything can
be made cheaply.


Yep, Good caps were made by Cornell Dubilier, Used them for many
years.

I remember Sprague Compulytic, not sure how good they were, never
had one fail though. Still got some (twice the size of a fist)
in a drawer.

If the seals are good, why wouldn't they work ?

They might need to be re-formed.

I'll duck down behind this desk, while you give
that a try.

https://en.wikipedia.org/wiki/Electrolytic_capacitor

"Applying a positive voltage to a "wet" capacitor causes a
reforming (self-healing) process which repairs all weakened
dielectric layers, and the leakage current remain at a low
level.[73]
"

Another web page I found, has a method.

https://www.6v6.co.uk/vcomp/tech_tips/reform_caps.htm

"Electrolytic capacitors can be dangerous. They can be charged
to a high voltage and will retain that energy for quite a
while. If the terminals of associated circuitry are touched,
a severe shock and burn may result."

I think Captain Obvious wrote that paragraph.

There are plenty of things to know about this
topic, to remain safe. With his wealth of bad
capacitor experiences, I'm sure the Commander
knows what I'm talking about. Personally, I find
the bad experiences are the best teachers.

Paul

Hahaha. I think they might call that child abuse these days. [g]




--
'Duh-lorrr-iss! It's dust bunnies! They're everywhere!'