0267490f   
   From: scepp@shawcross.ca   
      
    wrote in message   
   news:f026f4e6-5792-46a3-ad77-02bd45ba3fc6@q33g2000pra.googlegroups.com...   
   >I would like to make a DIY 75 to 75 ohm Isolation transformer to   
   > eliminate ground loop hum from incoming digital cable TV feed.   
   >   
   > I have found some DC blocking Baluns that one could connect together   
   > to make a 75-300-75 set-up but from my reading I think this might be   
   > problematic with digital cable service.   
   >   
   > How do I choose the right ferrite bead and calculate the number of   
   > turns etc.   
   >   
   > ??   
      
      
      
   Try going to the Amidon web site, they have books on how to calculate things   
   like this  and cores.  Another site would be CWS Bytemark, they have more   
   information on there web site but their shipping and handling rates are   
   high.   
      
   Shaun   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)