Richard Harrison wrote:
. . .
Surely an antenna loading coil resembles Kraus` low-frequency helix. It
has an open-circuit whip producing a reflection into one end. The
circumference is well below 1/2-wavelength, giving a current
distribution such as shown in Fig. 8-3a for a frequency below the axial
mode of operation.
. . .

So does this mean if we put a current into one end of the inductor I
described, it'll take about 40 ns for current to reach the other end? So
we should expect a phase delay in the current of 90 degrees at 6.15 MHz,
or about 15 degrees at 1 MHz, from one end to the other?

What good are all these books if the information can't be used to solve
a simple problem?

Roy Lewallen, W7EL