View Single Post
  #2   Report Post  
Old June 8th 08, 11:22 PM posted to rec.radio.amateur.antenna
Danny Richardson[_2_] Danny Richardson[_2_] is offline
external usenet poster
 
First recorded activity by RadioBanter: Sep 2007
Posts: 10
Default Balun 1:1 with FT 240-61 toroid

On Sun, 8 Jun 2008 11:37:50 -0700 (PDT), wrote:

Hi to everyone,
i need to replace my 1:1 balun on my yagi tribander 14-21-28 Mhz. I
have in my stuff a toroid FT 240-61 and some pieces of rg-142 coaxial
cable. Anyone can help me to know how many winding needs on toroid to
achieve good reactance on 14 to 28 Mhz ?
Thank you ,
Daniel.


Here's a very good paper on balun and chokes.

http://audiosystemsgroup.com/RFI-Ham.pdf