> don't understand how the bandwidth is narrower as you say.
Bandwidth on 10m. I set up the Smith Chart with the 4600 ohms as the load,
and looked in from the 50 ohm end. On 10m, the 2:1 SWR Bandwidth for any
particular setting of the L's and C's was less with the series inductance
than without. I assumed about 12 pF for Cstray + Ctube , which may be too
small, and if you go for a Cstray = Ctube of say 18pF, there might be a
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