SB-200 arrives

[Bradley S. Stone]

Very true, but please don't use Blue Shower - or similar cleaners!  25 years
of troubleshooting here will bear out the fact that Blue Shower hardens into
a semi-conductive mess after a few years.  A clear, evaporative,
non-lubricating cleaner (available at Radio Shack) is a good bet.
Information on DeOxit is available on the HCA web site under "Collectors
Resources/Chemicals" (www.hallicrafters.org)  Sometimes lubricating
additives are slightly conductive.  Also, remember that all of these aerosol
cleaners are very flammable!  Wait for the fumes to clear before firing it
back up.

Best of Luck,
Brad, NB9M

-----Original Message-----
From: John Campbell <r3campbell at HOTMAIL.COM>
To: HEATH at LISTSERV.TEMPE.GOV <HEATH at LISTSERV.TEMPE.GOV>
Date: Wednesday, October 06, 1999 7:41 AM
Subject: Re: SB-200 arrives


>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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