[Amps] RF in the Audio
Jim Brown
jim at audiosystemsgroup.com
Fri Sep 23 15:27:53 PDT 2011
On 9/23/2011 3:08 PM, Robert Kirkland wrote:
> I think your quite right in "seriously choking off your feeders". But
> please tell me how to use toroids on a 600 ohm open wire line.
Wind a bifilar choke using 12-14 bifilar turns of #12 THHN on a #31
2.4-in o.d. toroid. It introduces a small mismatch (Zo approx 100 ohms),
but only about two feet of line. Photos and details in the latest
version of my RFI tutorial. http://audiosystemsgroup.com/RFI-Ham.pdf
73, Jim K9YC
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