Is it possible to use slug tuned coils with any reasonable power? I am thinking
of moving a ferrite slug in and out of a coil to change the inductance, but
don't know if it would be too lossy at real power? Is there a type of ferrite
that could be used for this at HF? Or is this just a goofy idea. I want to get
rid of the roller inductor in my homebrew antenna tuner.
I read an article in an old Ham Radio magazine about a tank circuit for a
commercial 5KW amp, and they lowered the inductance by moving a shorted turn (
a piece of copper pipe) in and out of the tank coil. Wondering if can do the
same thing with ferrite.
73, Joe W0DB
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