Re: How do I work out secondary former diameter? (fwd)

["Tesla list" <tesla-at-xxxxxxxxxx>]

Original poster: Tesla List Moderator <mod1-at-poodle.pupman-dot-com>



---------- Forwarded message ----------
Date: Wed, 6 Dec 2000 10:00:18 EST
From: FutureT-at-aol-dot-com
To: tesla-at-pupman-dot-com
Subject: Re: How do I work out secondary former diameter? (fwd)

In a message dated 12/6/00 9:56:06 AM Eastern Standard Time, tesla-at-pupman-dot-com 
writes:

> 
>  Are there any rules of thumb for decicing the secondary former diameter?
>  What are the advantages/disadvantages?
>  
>  I will be using a 15/60 NST, 1600 turn secondary, not sure what size
>  toriod yet.
>  
>  TIA
>  Seth Fischer
>  

Seth,

The form must be large enough (tall enough) so it doesn't arc 
over and be destroyed.  In an optimal design at 120 bps, such
an NST can give a 65" spark output, so the form should be at
least 28" tall.  The diameter should be 5 to 8" in diameter.
These are just practical figures, based on experience.  The
toroid should be about 6" by 26" dryer duct or larger.

JOhn Freau