On Wed, 30 Jul 2008 20:33:53 -0400, Jack Smith wrote: >Yes, I have several ferrite core 2.5 mH chokes here, including the >Hammond one you mention. There's a significant difference in high >frequency performance of the pi wound on ceramic form versus the smaller >pi-wound over ferrite and that's one of the things I'm hoping to >illustrate in the article.
The RFI and Ferrite tutorial on my website includes clear explanations of the nature of ferrite materials from a circuit point of view. You may find it helpful in explaining why your very correct in your analysis. You are welcome to cite it as a reference. http://audiosystemsgroup.com/RFI-Ham.pdf However -- ANY 2.5 mH choke has a good chance of looking capacitive at 50 MHz. 73, Jim Brown K9YC _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
