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   sci.electronics.repair      Fixing electronic equipment      124,925 messages   

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   Message 124,432 of 124,925   
   Cursitor Doom to legg   
   Re: Switch Contacts   
   17 Sep 24 22:34:23   
   
   From: cd999666@notformail.com   
      
   On Mon, 16 Sep 2024 10:24:59 -0400, legg wrote:   
      
   > On Sun, 15 Sep 2024 23:42:48 -0000 (UTC), Cursitor Doom   
   >  wrote:   
   >   
   >>On Sun, 15 Sep 2024 21:44:07 +0100, Liz Tuddenham wrote:   
   >>   
   >>> Nick Hayward  wrote:   
   >>>   
   >>>> Hi all,   
   >>>>   
   >>>> I have a switch which isn't making electrical contact. It consists of   
   >>>> two leaf springs. Dead simple. They're springy enough to push against   
   >>>> each other alright. And I've cleaned them with ethanol (didn't work)   
   >>>> isopropyl alcohol (didn't work) and Servisol switch cleaning   
   >>>> lubricant (didn't work either). I am at a complete loss here. Has   
   >>>> anyone come across something like this? I can confidently say I never   
   >>>> have!   
   >>>   
   >>> I have had this happen when Hypoy gear oil has got on the contacts,   
   >>> but as other have said, the fault may be elsewhere.  Were you making   
   >>> your measurements directly on the springs or on something attached to   
   >>> them?   
   >>   
   >>No, I got the probes directly on the leaves themselves.   
   >   
   > Soak some unbleached kraft paper in alcohol or kerosene, and force   
   > between the leaves' contacting surfaces.   
   > Move vigorously in a circular patternm, then remove and retest.   
   >   
   > Nick Hayward = Cursitor Doom  ?   
   > Wouldn't have bothered, if I'd known.   
   >   
   > RL   
      
   Yeah, that's my name; don't wear it out!   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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