Manfred,
The numbers I've seen for flux density suggest that at 160m, you should be at
no more than 100 gauss or 10 mT for reasonable losses and linearity.......and
preferably a bit less.
So even if you cool the toroid, I'm still a bit doubtful about linearity. Plus
there's the temperature coefficient to consider, too. Fortunately, dust iron
has a fairly high Curie temperature, but that needs to be given some
consideration - I suspect Amidon don't have a figure for it.
For some reason, I've never been a big fan of toroidal dust iron inductors....
73
Peter G3RZP
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|