Re: Coil Form needed

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


Cardboard can be used but it must be totally sealed inside and out as any
moisture absorption will start the "form release" process ---- something
concrete formers desire but it's bad news for a TC when the coil form starts
coming released and wire springs out everywhere.

You might consider fiberglass (extren) as it won't release if any moisture
is absorbed.  A bit more expensive but a lot safer if you live in a climate
that becomes humid part of the year.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, May 12, 2004 5:06 PM
Subject: Re: Coil Form needed


 > Original poster: "Eastern Voltage Research Corporation"
<dhmccauley-at-easternvoltageresearch-dot-com>
 >
 >
 > Sonotube cardboard forms work well.  (Can get variety of diameters from
 > building suppliers, home depot, etc...)  I've seen as large as 24" in
 > diameter.
 > Dan
 >
 >
 > Dan
 >
 >
 >  > I am looking for a coil form 12" or greater diameter. The length should
be
 >  > about 4 times the diameter. Also I am planning on using a 40kV .5uF
 >  > capacitor for the tank circuit. I have a 25kVA pig to drive it. Has
anyone
 >  > on the list ever used that much capacitance in their tank circuit ?
 >  >
 >  >
 >  >
 >  > Paul S. Marshall
 >  >
 >  >
 >  >
 >  >
 >  >
 >
 >
 >