[ARC5] Cleaning pins...

[Geoff]

I always use Q Tips and a diluted Tarn-X and have not noticed any unusual 
events.
Cleaning one of the old National sliding coil assemblies and its fixed 
sockets takes 40+ Q Tips.

Carl


----- Original Message ----- 
From: "Mike Hanz" <aaf-radio-1 at aafradio.org>
To: <jfor at quikus.com>
Cc: "ARC5 at mailman.QTH.net" <arc5 at mailman.qth.net>
Sent: Sunday, October 06, 2013 8:21 AM
Subject: Re: [ARC5] Cleaning pins...


>I used to use Tarn-X, but stopped when I noticed that it made the silver 
>tarnish more rapidly.  I looked at a sample under a microscope and 
>discovered that, contrary to the creams that are normally used for silver 
>utensils, the dip stuff etches holes into the surface, sort of a honeycomb 
>appearance.  That increases the surface area open to the atmosphere and 
>accelerates the retarnishing...duh.  Pins would be tough to work on...lots 
>of Q tips... but for things like the tuning coils on the ARC-5 
>transmitters, the cream treatment will last far longer and doesn't damage 
>the silver surface like a dip.
>
> -Mike
>
> On Oct 5, 2013, at 6:03 PM, "J. Forster" <jfor at quikus.com> wrote:
>
>> Dip silver cleaner, like Tarn-X, applied w/ a Q-Tip, followed by several
>> really good clean water rinses amd a long drying time.
>>
>> But, Silver Oxide is conductive, and you don't need to clean the pins.
>>
>> -John
>>
>> ========================
>>
>>> Good afternoon, folks.
>>>
>>> I got a very nice MD-7 a while back and just now getting to it.  A 
>>> simple
>>> request:  suggestions for removing tarnish from the connectors.
>>>
>>> Thanks & 73,
>>> John
>>> K5ENQ
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