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Re: [TenTec] Burnishing tool?

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] Burnishing tool?
From: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 15 Jul 2012 12:33:15 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Ink eraser to clean edge contacts or otherwise is a bad idea due to the 
outgas of an acid compound and Sulfur.  Rub it on a surface and smell.

Proper cleaning is best done with a soft cloth and contact cleaner.  If it 
is a tight space there is a lint free swab made specifically for cleaning 
rotary video heads that, with a small application of contact cleaner applied 
to the swab, works well.  Excessive and random sprayed contact cleaner can 
become corrosive.

For dry contacts, a strip cut from a white index card works well.  Just use 
a small amount of pressure to bring the contacts together, grasping the 
index card strip, to wipe between the contacts.

For rotary switches and pots, a cleaner which contains some lubricant is 
generally satisfactory.  GC Chemicals has made some good stuff in the past. 
I've a can that is probably 10+ years old, hence this gives one a reference 
to the small amount that I use in doing regular repair and restoration work. 
I've also used Cramolin, both Red and Blue, but only at 1% solution.  The 
other 99% is Freon TF.  I think the stuff is no longer available due to 
environmental reasons.  Perhaps, as I understand,  DeOxit is a good 
substitute.  Again, least is best.




73
Bob, K4TAX



----- Original Message ----- 
From: <w8au@sssnet.com>
To: <tentec@contesting.com>
Sent: Sunday, July 15, 2012 12:11 PM
Subject: Re: [TenTec] Burnishing tool?


> At 11:13 PM 7/14/2012, Richards wrote:
>>Does anybody use a burnishing tool to clean contacts?  I seem to recall
>>RadioShack selling such a thing years ago.  Not having one, I sometimes
>>use an old ink eraser.  Are there better ideas for this?
>
> Nothing better, but if you need something in a hurry, use a
> clean dollar bill.   Very rugged, no shedding, and has a slightly
> coarse surface.  (need I add -- pull through closed contacts, not push?) 
> :-)
>
> Works well.
>
> Perry   w8au
>
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> TenTec@contesting.com
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> 


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