SB-200 arrives

[John Campbell]

Hi Ron:
   I'm not sure what material the switch contacts are made of, but the
tarnish you describe is not at all unusual. I have had good success using a
commercial product called "blue shower" to clean these contacts. You can
also use a product called "De-Oxid" (sp???). Lacking either of these
products, you can also use plain old rubbing alcohol. There is also a tuner
cleaner/degreaser available from Radio Shack which is similar to the "Blue
Shower" and works well.
Hope this is helpful.........73...John <<w8jnc>>



>From: Ron Emerson Kb9E <Rpemers at AOL.COM>
>Reply-To: Rpemers at AOL.COM
>To: HEATH at LISTSERV.TEMPE.GOV
>Subject: SB-200 arrives
>Date: Tue, 5 Oct 1999 21:58:57 EDT
>
>Ok..I'm all fired up now!  UPS delivered my SB-200 today and it looks to be
>in great shape.  It was packed very well and the box didn't look beat up at
>all.  I spent about 2 hours with the chassis out of the cabinet, cleaning
>the
>dust out.  Now the inside looks really good and a nice neat job of
>assembly.
>I only noticed one thing that even concerned me(so far)and that was the
>band
>select switch.  Looking at the switch from the rear it looks to be
>tarnished?
>  Did they use silver plated metal on the contact lugs and plate(?)
>assembly?
>Its not corrosion or rust but looks like the same tarnish a silver plated
>musical instrument would have after sitting for while.  If so, any
>recommendations on how to clean it would help or maybe it's supposed to
>look
>like that..thats why I'm asking here.
>
>I should be able to get the Harbach Soft-Key mod in this Friday and then
>hopefully put the amp on the air!   Thanks to all of you who have been so
>helpful in answering my questions and offering more.
>
>Ron
>KB9E
>
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