ORIGINAL MESSAGE: On Fri, 4 Feb 2011 13:50:54 -0700, "John Lyles" <jtml at losalamos.com> wrote: >in proton synchrotron particle accelerators, ferrite is used nearly universally REPLY: Well, no wonder my proton synchrotron particle accelerator isn't working on 20 meters. I used powdered iron. Duh! :-) 73, Bill W6WRT