From: cloporte@gl.ca   
      
   Hi All , I don't know if I post to the right group but here it goes... Kay   
   Elemetrics used to make step attenuators in 50, 75 and 90 Ohms years ago.   
   The 2 first type usage is obvious but the 90 ohms units is not too clear. I   
   have one of these but really don't know what they were used for. The only   
   actual use for 90 Ohms coax is in computer networking (that I know of) but   
   these attenuators were made in the 50's and early 60's so their usage in   
   networking is questionable since computers were not really in use yet.  The   
   input and output connectors are BNC female jacks..  RF, audio, ultrasound or   
   what? Anybody has ideas about it since Google is of no use on this one?   
   Thanks for your thoughts.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)