[sdiy] old capacitor ID

Roy J. Tellason rtellason at verizon.net
Sun Jan 20 03:12:55 CET 2008


On Saturday 19 January 2008 21:01, Scott wrote:
> Thanks guys.
>
> Ceramic disk caps aren't prone to failure either, are they?

Nope.  I've never seen one fail yet.

> I know they aren't in the age stuff I usually work with, but I'm not sure
> about  something that is over 50 years old.
>
> There's something wrong w/ the amp.  I've got new tubes on the way, and am
> getting ready to order the replacement electrolytics. A good cleaning got
> rid of most of the hum, but it occasionally lets out a pop and looses some
> volume.  Then another pop and it's back.

Wait till the new electrolytics are in there and see if it still does it.  If 
so,  then an ac-coupled scope at various points will help you track it 
down...

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin




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