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Recent content by s500

  1. S

    How to back-annotate from Allegro to Orcad?

    annotation allegro Hi, I tried the tool Back Annotate in Orcad but cannot back annotate from Allegro. Anyone knows this? Thanks, Ngon.
  2. S

    Calculate traces width, spacing base on impedance?

    zo impedance thanks, but can you show me how to calculate for PCB layout?
  3. S

    Calculate traces width, spacing base on impedance?

    pcb impedanc freeware Hi guys. I want to know how to calculate traces width, spacing base on impedance? Thanks for your help.

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