Post date: Nov 02, 2011 3:41:18 PM
I didn't know that until I read the following article supplied to me by respondents to an RSGB Tech (yahoo Group) query on providing earthing for an upstairs shack.
http://www.audiosystemsgroup.com/RFI-Ham.pdf
Apparently a torroid can become non-linear when it becomes saturated and this can lead to the production harmonics - it makes perfect sense but something I hadn't factored in when looking at circuits, I wonder if the output torroids of the TenTec 1320 ever became saturated - it certainly became distorted with a poor terminating impedence.