Topband: FT-240-77 Toroid Impedance R + jX Components

[Michael Tope]

A while back I posted impedance vs frequency vs # of turns 
data for the Amidon FT-240-77 toroid (Fair-Rite Products 
P/N 5977003801). I have updated my website to include 
plots of the real (R) and imaginary  (jX) components of the 
impedance:

http://FT-240-77.notlong.com

Looks like the impedance of this material becomes almost
purely resistive above 1.4 MHz. 

Happy Holidays!

Mike, W4EF......................