Richard Clark wrote:


Hi Tom,

Thanx for the flowers. In point of fact, inductor and capacitor
standards are shielded. They are three terminal devices. To remove
the effects of the shield you drive it at the same potential (which is
to say the shield is floating with respect to everything/one around
it).

For the practicality of things, Reggie was never very far off the mark
and you following him as an exemplar is suitable to other's inventions
of proximities that have no defining moment in their references.

I can well guess the remainder of your method as it was well defined
in most Ham manuals (derived from conventional EE methods) when I read
up on it 40 odd years ago. If Cecil every gets over this intellectual
pebble in the path, please quote it so that I can see how much strain
that ascent took.

73's
Richard Clark, KB7QHC

Hi Richard,
In point of fact, I just used a dip-meter-frequency-counter
combination to see if I could get somewhere near the results that
ON4AA's calculator suggested. Later, I cut the coil at its center point,
attached a cheap antenna analyzer there and looked for a frequency of
least impedance. The dip meter indicated about 8.93 Mhz and the analyzer
indicated 8.98 Mhz. I consider the closeness of the two readings to be
pure accident. However, they do reinforce each other in leading me to
believe that the Corum calculator has some serious deficiencies. Serious
enough, that those who claim its correctness should do some practical
investigation into its merits in order to spare themselves the jibes of
their more analytical brethren.
73,
Tom Donaly, KA6RUH