AC grill primary

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "K Wilson" <teslamap-at-hotmail-dot-com> 

While walking around the side of my dads house yesterday my eye caught the 
perfect spiral of the metal fan grill on top of the air conditioning unit. 
There's 5 or 6 bars radiating from the center to hold the spiral in place 
that would have to ground or cut off. There's about 14 turns, and the metal 
looks like 10 AWG (0.1 in) stainless steel.
Inside diameter = 6 in
Outside diameter = 20 in
2 turns per inch
L at turn 14 = 64 uH
These dimensions and inductance values are almost identical to the ever 
popular 0.25 in copper tube, with 0.25 in space between turns.
My question is how can I convince my dad to let me disassemble his air 
conditioning unit?

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