[Boatanchors] "NOS" Caps: Don't Trust'em; Check'um!

[Geoff]

Since a defective NOS cap can create as much damage as the original leaker 
the moral for 99.94% of us is to ALWAYS replace any paper cap with a modern 
one, be it film or disc ceramic.

Those who insist on using old caps belong in the remaining .06%

Carl
KM1H


----- Original Message ----- 
From: "David Stinson" <arc5 at ix.netcom.com>
To: <milsurplus at mailman.qth.net>; <boatanchors at theporch.com>; 
<boatanchors at mailman.qth.net>
Sent: Friday, May 04, 2012 7:38 AM
Subject: [Boatanchors] "NOS" Caps: Don't Trust'em; Check'um!


> You know, after 40 years of fixing this stuff, you'd think
> a lesson or two would sink into my wooden head.
> But....
>
> I'm resurrecting a pair of WWII Navy DAG portable
> direction finders.  I needed to replace some .1 bypasses.
> So I tacked-in some NOS caps I bought at our local
> surplus outlet ( Knock Knock, David...First clue...
> why were they surplused in the first place, ya big dummy?).
> And.... my screen voltages were still low.   Hmmmm.
> So I wasted lots of time scratching my head
> over the diagram looking for possiblities.
> Long story short- one of the "new" caps
> was shorted.  Argh!
>
> Moral:  Before you install it, check it!
>
> 73 DE Dave AB5S
>
>
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