Re: [TCML] Griffith Park Coil

[Dave Sharpe <sparktron01@xxxxxxxxx>]

David
How about a soccer cone?  Various sizes and are usually quite stiff.  Also usually made of polyethylene  so would be a good coil form material.



On Oct 21, 2012, at 5:29 PM, david baehr <dfb25@xxxxxxxxxxx> wrote:

> 
> Thanks to all with the GPO  coil info/specs.  I was thinking about 1/4 size of that coil. 9" base , 4" at the top , and 12" high  with a  3" or 4" gazing ball top load              Any ideas on building the coil form ?  First I thought multiple layers of cardboard , glued  together (may not be stiff enough ) . Or maybe thermo plastic ?
>> Date: Mon, 15 Oct 2012 19:22:42 -0700
>> From: jimlux@xxxxxxxxxxxxx
>> To: tesla@xxxxxxxxxx
>> Subject: [TCML] Griffith Park Coil
>> 
>> Starting a new thread here to respond to another poster's question..
>> 
>> Can anyone tell me how many turns of wire were used on the Griffith Park 
>> Observatory conical  coil ?                           Thank You , DaveB
>> 
>> http://www.teslatechnologyresearch.com/Griffith/griffith.html
>> 
>> specifically
>> http://www.teslatechnologyresearch.com/Griffith/observer_aug65_p3.htm
>> 
>> 47 inches high, bottom diameter 36 inches, top diameter 18 inches, 400 
>> turns of AWG 14.
>> 
>> (which is actually a fairly low number of turns..)
>> 
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