At 10:10 AM 10/23/2007, you wrote:
I thought it was linear unless it becomes saturated. Circulators are ferrite devices and as long as the ferrite core isn't saturated, it remains linear. <----One other thing. If the use of ferrite alone was the sole requirement to determine linearity, then I would submit that torroidal devices would inherently be non-linear. In which case, how can they be used to transfer "linear" signals? Ken