Cecil,

The "quote" was from your message, not the Corum paper. It is highly
likely that it does not mean what I think it means. It probably does not
even mean the same thing to you after a few minutes.

As for the Corum paper, would you be so kind as to point out the page
where it is written:

The velocity factor equation is appropriate for quarterwave resonance
*and* any other length at the same frequency.

I found the section that says the formula is appropriate at resonance,
and I must have missed the part that says the formula works for any
length as long as the frequency is maintained.

You still have not explained at what point the transition from Vf ~ 1 to
Vf 0.02 occurs.


73,
Gene
W4SZ


Cecil Moore wrote:
Gene Fuller wrote:

You have really lost it. I gave you the exact quote, and you then
proceed to talk about something else.


Your quote doesn't mean what you think it means. The velocity
factor equation is appropriate for quarterwave resonance *and*
any other length at the same frequency. The graph in the next
column over shows coils of 10,000 turns per wavelength. It does
NOT limit them to any length so your argument is bogus.

Their goal was to find a VF equation that worked for quarterwave
resonance but it works for a lot more than quarterwave resonance.
It holds for any length as can be seen from Fig. 1.