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   sci.electronics.design      Electronic circuit design      143,102 messages   

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   Message 141,477 of 143,102   
   john larkin to All   
   fine-pitch ribbon cable TDR impedance   
   02 Dec 25 15:41:11   
   
   From: jl@glen--canyon.com   
      
   The usual 3M stuff (50 mil wire pitch) measures about 110 ohms,   
   running gnd-sig-gnd.   
      
   But the 25 mil pitch cable measures 75 ohms!   
      
   https://www.dropbox.com/scl/fo/iw6w70fsxtv7wd08dn76q/AJLy9-bQWua   
   hlY3gW8rQiI?rlkey=p3gsuns0xcjp2ujejimxil3vx&dl=0   
      
   That's a lot nicer to mate up with a PCB.   
      
      
      
   John Larkin   
   Highland Tech Glen Canyon Design Center   
   Lunatic Fringe Electronics   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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