Etherwave antennae

Thank you!
For the theoretical background on why putting bigger caps result in "less sensitivity", read this:
http://www.dogstar.dantimax.dk/theremin/thersens.htm

Prety interesting text.

Wiring a coil:
http://www.oldtemecula.com/theremin/ultimate2b/newcoil.htm

Coil calculator:
http://www.oldtemecula.com/theremin/ultimate2b/calculator.htm

Home-made machine for wiring:
http://www.oldtemecula.com/theremin/ultimate2b/boxwinder.htm

hi etherspiel!
i'm a newbie here so could you help me?
i've built a theremax and now it's time to linearizing.
what is the length and diameter of your series coil?
oldetmecula instructions are very confused or maybe i'm a dumb.
i don't understand if 15.75" is the length of the coil or it's the length of the wire.
do you think that i can use the wire from an old transformer?
please this could be very helpful to me!