Ferrite desaturation in slow motion

George Herold wrote:

> OK, HF magnetics is beyond my experience... (except for winding
> transformers/coils on some ferrite)

So is mine, but I would like to change that. I have already performed 
some crude quasi-static tests with a single toroid crossed fields 
saturable reactor. These preliminary results are very encouraging; a 2:1 
inductance change is easy to achieve. Now I am going to pump it with 
some GHz reconnaissance waveform and see what happens. The problem is 
that I have no microwave generator, so I will need to wait for a 
delivery from Mouser.

If it works, the result will physically look pretty much like a YIG 
oscillator: one wire through the core to create the toroidal field, one 
around the equator to create the poloidal component. Just not sure if my 
layered saturation shockwave theory is right, will see. At low 
frequencies, where the transient phenomena can be ignored, it works just 
fine.

	Best regards, Piotr