> with a slug like the TL-922A or your 30L1, for example.
> Maybe one can
> play with the spacing of the input torroids, but I doubt
> that is easy or
> has much range.
I was surprised by how much inductance range iron cores
produce as turns are bunched and spread. I've measured
various iron cores (T94 size iron toroids) and they can have
about 30% inductance change from fully spread to fully
bunched turns. This is also measured far from
self-resonance, so it is not the turn-to-turn capacitance at
work.
That actually was a fix for some Dentron gear. Just squeeze
the turns together and readjust the capacitors for lowest
SWR on the input.
73 Tom
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