[Boatanchors] White Powder?

Mike McCarthy, W1NR lists at w1nr.net
Wed Mar 9 14:05:40 EST 2005


It's most likely mold.  I have seen this in a tube tester before.  Not sure
what the best way to clean it is, but Simple Green might work.

Mike 

-----Original Message-----
From: boatanchors-bounces at mailman.qth.net
[mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of Philip Atchley
Sent: Wednesday, March 09, 2005 1:59 PM
To: boatanchors at mailman.qth.net
Cc: Barney Greene
Subject: [Boatanchors] White Powder?

Hi,

Right now I'm working on a Precision E-200C signal generator.  Upon opening
the unit up I discovered that much of the metal in the unit is coated with a
white "powder". (No, the owner's not a druggie ;-) The frame of the tuning
capacitor has a VERY thick coating of said powder while the pilot lamp, tube
socket saddle and internal chassis has lesser amounts.  None of the aluminum
or copper surfaces seem to be polluted in this way.

Ideas? Is it hazardous?Best way to clean it off?

I'm putting it back in it's case until I figure out how to handle it.

73 de Phil,  KO6BB
http://www.geocities.com/ko6bb/
Merced, Central California, 37.3N  120.48W  CM97sh 

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