[GreenKeys] [External] Fwd: Filing Contacts - Don't

[Mike]

Agreed that Brasso has a pastey consistency, but not so with TarnX. I've used both, but prefer the TarnX.  Applied with a small acid brush or cotton swab and rinsed off with contact cleaner or denatured alcohol from a wash bottle.  Works for me...Mike
-------- Original message --------From: Keith Lueck <kwlueck at swbell.net> Date: 1/16/23  1:11 PM  (GMT-07:00) To: "GreenKeys at mailman.qth.net" <greenkeys at mailman.qth.net> Subject: Re: [GreenKeys] [External]  Fwd:  Filing Contacts - Don't 
        Having used those for their intended purpose, I can say they're pretty nasty and would be hard to remove from a confined space, since they have a pasty consistency...    I prefer to use DeOxit.  The stuff is marketed like snake oil, and is expensive, but I've been using it for close to 20 years and it really works!  On low-signal / high impedance circuits, you want to be careful, since it is conductive.  For example, cleaning the fine gold contacts on my 7000-series Tek oscilloscope plugins, I use a small strip of paper moistened with DeOxit.  IMO, the spray is like using a fire hose to water your lawn, so, I prefer to buy a small vial of the liquid.  The 7.4 ml vial will last you a lifetime...  It has saved my bacon on countless occaisons.  Keith
        
        
            
                
                
                    On Monday, January 16, 2023 at 01:53:41 PM CST, Mike <mmcauley at cox.net> wrote:
                
                
                
                Just wanted to chime in with a question:What are the thoughts on cleaning relay contacts with chemicals like Brasso or TarnX?Mike
            
        
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