Sonotube used as a removeable form for Fiberglass coil form?

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Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>

Hello all,

Has any one ever made a fiber glass coil form 
from a sonotube. ( to be removed). I followed 
several telescope threads where this has been 
effectively (10? 0r 12?). I want to make a 20 to 
24? coil 4.5 to 5 ratio. Yea! I have access to a 
near by barn and lots of interest with my 8.5? 
coil. There is hope for my marriage after all.

Recent skin effect verses conductor dia threads 
have hedged that there is a sweet spot. This coil 
will be wound with 12 Gage solid core house wire. 
Home Depot has it in 2500 rolls. The prelim cacls 
suggest this coil would have a self res of 84KHz. 
Stranded mics @ .128? x 1000 turns= 128?/12= 
10.666 ft coil height with a 24? diameter we get 
a 5:1. I am still using Classic Tesla Java.

If some of you have time run a sim on this for 
efficiently on this coil parameter the primary 
(pancake) is to be ½ tube 1.5 ? arc space to the 
Secondary, separated  by 3/8? turn to turn, 
Capacitance will be smallish at first (.03 to .8 
CDC MMc?s will be 24KV @ up to 15kw DC variable 
to 500bps. I?ll go run this setup.

Hey its getting late again.

Till that time
Jim Mora
Ojai,CA