That's true.
Electrolytics are based on organic chemicals in the "sauce" and these
degrade with time, albeit it takes quite a time to happen.
At a time in the mists of the past a number of us were making quite a
passable living from replacing them in tube radios and car radios, which
were exposed to relatively high temperatures, prevalent in cars left in the
sun.
Mallory had at a time an explanatory note on their ATOM series tubular
electrolytics.
Alex 4Z5KS
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Bill, W6WRT
Sent: Sunday, April 11, 2010 7:59 PM
To: amps@contesting.com
Subject: Re: [Amps] HV lytic max V ratings..some notes.
ORIGINAL MESSAGE:
On Sun, 11 Apr 2010 06:24:30 -0700, "Jim Thomson" <Jim.thom@telus.net>
wrote:
>
>Yeah, that's what I was always lead to believe. I was told that it is
>better to run your caps very close to their voltage rating. Dunno if
>its a wives tale or not.
REPLY:
I was told that too, but never heard any real proof. The idea was that
an electrolytic is not a static (pun intended) component. The
electrolyte is chemically active and will gradually deteriorate if not
run near it's rated working voltage.
Possibly just an old wive's tale. If anyone has any authoritative
source, please post it.
73, Bill W6WRT
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