From: bon@hertz.ikp.physik.tu-darmstadt.de   
      
   john larkin  wrote:   
   > On 12 Nov 2025 12:55:41 GMT, Uwe Bonnes   
   >  wrote:   
   >   
   >>Hello,   
   >>   
   >>the usual suspects (Digikey, Mouser, Farnell, etc) and a lot of web   
   >>browsing  did not bring up an accessible sources for 0.635 mm twisted   
   >>pair Ribbon Flat Cable sold by length beside some Alibaba seller   
   >>offering confectionated units.   
   >>   
   >>Has anybody some hint for a sensible source?   
   >>   
   >>Thanks   
   >   
   > Do you need twisted pair?   
   >   
   The transmitted signals are LVDS going to many Time to digital   
   channels. For LVDS signals on a non-twisted pair beside much more   
   radiated EMC I only expect double the crosstalk. So probably only near   
   coincident events on neighbouring will be affected. Do I miss   
   some effect to consider?   
      
   But the physics event we want investigate will trigger neighbouring   
   channels and their timing relation is important. So fine pitch TP   
   would be nice...   
      
   Thanks   
   --   
   Uwe Bonnes                bon@elektron.ikp.physik.tu-darmstadt.de   
      
   Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt   
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