[RFI] Ferrites For Computer Cables

[Jim Brown]

On Wed,1/7/2015 4:46 PM, Larry K4AB wrote:
> Years ago I came across several ferrite chokes that I've used
> on computer USB cables.  These are not the small "clamp-on" types,
> but rather heavy "split-types".

k9yc.com/RFI-Ham.pdf

Study the tutorial material in the text about how to wind chokes, and 
Appendix One for vendors. In addition to those listed, I've had good 
service from Dexter Magnetics, near Chicago.

73, Jim K9YC