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Date: | Thu, 8 Mar 2012 11:05:30 -0800 |
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Aren't a lot of those turrets silver plated? Would silver whiskers
tarnish like that over age?
I'm just a CAD guy, but that's the first thing that comes to mind...
Olav
On 3/8/2012 10:39 AM, Goodyear, Patrick wrote:
> Ok got a new one. Found on the plated portion of a turret a black fuzz, also on the riveted backside and the plated portions of all of the lands outside the soldered areas.
> It cleans right off with alcohol leaves no residue, is crystalline in structure and grows away from the metal has a coral like appearance.
>
> I have attached pictures but Steve is off today so don't know who else can post.
>
> Again a 40 year old board.
>
> Any ideas????
>
> Pat
>
> .
>
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