From: amd...@gmail.com   
      
    Sorry using GG, I have newsreader problem after updating Thunderbird, I   
   haven't solved yet.   
      
   In a thread about a low impedance transformer for a Q meter, it was suggested   
   two cascaded two 10 to 1 transformers   
    to get 100 to 1 ratio. 3C90 material was used.   
   I have 3F3 that is similar but a little lower ui.  I'm hoping flat 100kHz to   
   100MHz, but really only need 30MHz.   
      
   I have pot cores, are there any tricks to winding that will make for better   
   coupling or less strays?   
      
      
    Is there any advantage to a wide band for the one turn secondary vs a single   
   22 gauge wire? I have copper strap   
   or brass shim stock.   
      
   Put the one turn on outside, on inside?   
      
   I have room for 12 turns, put the one turn right in the middle, 5 turns on   
   each side?   
      
    I've built one, but I need a better jig to measure with the NanoVna. Parts on   
   the way.   
      
                           Thanks, For you input, Mikek   
      
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