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   rec.crafts.metalworking      Metal working and metallurgy      215,367 messages   

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   Message 214,939 of 215,367   
   Snag to Snag   
   Odd readings was : Electronics question   
   28 Oct 25 17:09:40   
   
   From: Snag_one@msn.com   
      
   On 10/27/2025 3:50 PM, Snag wrote:   
   >    I got the new pot installed in the foot pedal to my TIG machine today   
   > . Same 47k ohm rating as the original . But there's something weird   
   > going on , I'm not getting the amperage I set the dial for , it's lower   
   > than the setting . Not an earth shaking problem as I have never used the   
   > full amperage and I can control it now . Still , I'd rather get the   
   > amperage I have it set at instead of guessing .   
      
      I checked the resistance on that new pot . And I got some odd   
   readings ... I get 21k maxed out one side and 46k the other side .   
   Outside terminal to outside I get the 47k plus/minus . THis may or may   
   not have something to do with output not matching set point . The other   
   pot measures 47k+- maxed out both ways . I'm having a hard time   
   understanding the different values , AFAIK these all use a single wiper   
   center contact so I should be getting the same reading from either side   
   when maxed out .   
   --   
   Snag   
      I appreciated foreign cultures more   
   when they stayed foreign ...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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